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DM1000
提交 da55accb 创建 作者: 赵鹏翀's avatar 赵鹏翀
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<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<project id="9f9ed1d6-0d0e-4f81-9f67-979cbbbdb80a" name="DM1000" version="1">
<files>
<filefolder id="a9f57fc8-c239-4574-a5da-f8fa2760024b" name="子模块">
<file relativepath="ALU.dlsche"/>
<file relativepath="PC.dlsche"/>
<file relativepath="REG.dlsche"/>
<file relativepath="MEM.dlsche"/>
<file relativepath="CU.dlsche"/>
<file relativepath="uPC_NEXT.dlsche"/>
</filefolder>
<filefolder id="80f1035e-e898-408b-bb0c-e69c72ad13b4" name="汇编源程序">
<file relativepath="ram.asm"/>
<file relativepath="ram.bat"/>
</filefolder>
<filefolder id="03f70f98-2bea-4829-91ee-a9e5f6ee0c87" name="微指令源程序">
<file relativepath="rom.masm"/>
<file relativepath="rom.bat"/>
</filefolder>
<filefolder id="be71b6f0-d920-4758-8b3a-3a343b490c2e" name="存储器映射文件">
<file relativepath="ram.rxm"/>
<file relativepath="rom.rxm"/>
</filefolder>
<file relativepath="DM1000.dlsche"/>
<file relativepath="README.md"/>
</files>
</project>
DM1000.dlsche 0 → 100644
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DM1000.dlsche.svg 0 → 100644
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<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
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<text alignment-baseline="after-edge" fill="#000080" font-family="Times New Roman" font-size="180" font-weight="700" text-anchor="start" x="5781" y="304">ALU</text>
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MEM.dlsche 0 → 100644
浏览文件 @ da55accb
添加文件
MEM.dlsche.svg 0 → 100644
浏览文件 @ da55accb
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="496">A0</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="516">A1</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="536">A2</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="556">A3</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="576">A4</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="596">A5</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="616">A6</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="636">A7</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="696">D0</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="716">D1</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="736">D2</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="756">D3</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="776">D4</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="796">D5</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="816">D6</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="723" y="836">D7</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="807" y="496">Q0</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="807" y="516">Q1</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="807" y="536">Q2</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="807" y="556">Q3</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="807" y="576">Q4</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="807" y="596">Q5</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="807" y="616">Q6</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="807" y="636">Q7</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="743" y="896">W^R</text>
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<text alignment-baseline="after-edge" fill="#000000" font-family="Arial" font-size="90" font-weight="700" text-anchor="start" x="640" y="456">RAM</text>
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<polyline fill="none" points="1530 556, 1730 556" stroke="#0000ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="5"/>
<polyline fill="none" points="1530 586, 1730 586" stroke="#0000ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="5"/>
<polyline fill="none" points="1530 616, 1730 616" stroke="#0000ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="5"/>
<polyline fill="none" points="1530 646, 1730 646" stroke="#0000ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="5"/>
<polyline fill="none" points="1530 676, 1730 676" stroke="#0000ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="5"/>
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<line stroke="#000080" stroke-linecap="round" stroke-width="5" x1="1730" x2="1780" y1="556" y2="506"/>
<line stroke="#000080" stroke-linecap="round" stroke-width="5" x1="1730" x2="1780" y1="586" y2="536"/>
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<polyline fill="none" points="890 556, 1140 556, 1140 586, 1280 586" stroke="#0000ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="5"/>
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<polyline fill="none" points="890 596, 1080 596, 1080 646, 1280 646" stroke="#0000ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="5"/>
<polyline fill="none" points="890 616, 1050 616, 1050 676, 1280 676" stroke="#0000ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="5"/>
<polyline fill="none" points="890 636, 1020 636, 1020 706, 1280 706" stroke="#0000ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="5"/>
<polyline fill="none" points="270 1286, 1180 1286, 1180 766, 1280 766" stroke="#0000ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="5"/>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1447" y="526">D1</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1447" y="556">D2</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1447" y="586">D3</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1447" y="616">D4</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1447" y="646">D5</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1447" y="676">D6</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1447" y="706">D7</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1363" y="496">A0</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1363" y="526">A1</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1363" y="556">A2</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1363" y="586">A3</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1363" y="616">A4</text>
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PC.dlsche 0 → 100644
浏览文件 @ da55accb
添加文件
PC.dlsche.svg 0 → 100644
浏览文件 @ da55accb
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<text alignment-baseline="after-edge" fill="#000000" font-family="宋体" font-size="150" font-weight="700" text-anchor="start" x="1198" y="230">PC模块</text>
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README.md
浏览文件 @ da55accb
# 说明
空白项目
# 使用方法
可根据需要自行添加原理图等文件。
# 说明
DM1000 八位模型机
REG.dlsche 0 → 100644
浏览文件 @ da55accb
添加文件
REG.dlsche.svg 0 → 100644
浏览文件 @ da55accb
这个 源代码变更 因为 太大 而不能显示。 你可以 浏览blob 。
dmasm.c 0 → 100644
浏览文件 @ da55accb
/*******************************************************************************
Copyright (c) 2008 - 2018 北京英真时代科技有限公司。保留所有权利。
*******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
typedef unsigned char BYTE;
typedef long BOOL;
#define FALSE 0
#define TRUE 1
#define MAX_LINE_LENGTH 256 // 一行代码最多可以有多少个字符
#define MAX_LINE_COUNT 1024 // 源代码文件最多可以有多少行
#define MAX_SYMBOL_LENGTH 64 // 一个符号最多可以包含多少个字符
#define MAX_SYMBOL_COUNT 256 // 源代码文件中最多可以包含多少个符号
#ifndef MAX_PATH
#define MAX_PATH 256 // 文件路径最多可以包含多少个字符
#endif
// 代码行数据库。记录源代码文件中所有代码行的信息（包括注释行、空行）
struct LINE_RECORD
{
char line_string[MAX_LINE_LENGTH]; // 代码行的内容
unsigned long line_num; // 行号
unsigned long address; // 此行代码转换的机器码在映像文件中的地址（偏移）
int machine_code_count; // 此行代码转换的机器码的字节数量
unsigned long flag; // 代码行标志位，32位
};
struct LINE_RECORD line_database[MAX_LINE_COUNT] = {0};
int line_count = 0;
int machine_code_line_count = 0; // 记录产生了机器码的代码行的数量
// 在此定义所有的代码行标志位。注意，代码行标志位是按位或的关系。
#define LF_INSTRUCTION 0x00000001 // 代码行标志位的最低位是1，表示此行是一条指令，否则表示此行是数据
// 重定位表。如果指令中使用了标号、变量名等符号，在第一次扫描时无法确定他们的地址，需要
// 在第二次扫描时进行重定位。
struct REALLOCATE
{
unsigned long address; // 第一次扫描时，在这里记录了需要重定位的机器码的地址（偏移），
// 第二次扫描时，根据符号的地址进行重定位。
char symbol_name[MAX_SYMBOL_LENGTH]; // 需要重定位的符号名称。
int line_num; // 行号。
};
struct REALLOCATE reallocate_table[MAX_LINE_COUNT] = {0};
int reallocate_count = 0;
// 符号表。符号包括源代码中的标号、变量名。
struct SYMBOL
{
char name[MAX_SYMBOL_LENGTH]; // 符号名称
unsigned long address; // 符号表示的地址。重定位时需要用到。
int machine_code_count; // 符号生成的机器码的数量（以字节为单位）。
int line_num; // 行号
int ref_count; // 引用计数
};
struct SYMBOL symbol_table[MAX_SYMBOL_COUNT] = {0};
int symbol_count = 0;
// 汇编过程的状态
enum
{
AS_BEGIN // 起始状态。在遇到代码段名称前，处于此状态
,AS_TEXT // 正在处理代码段。遇到代码段名称后，遇到数据的名称前，处于此状态
,AS_DATA // 正在处理数据段。遇到数据段名称后，处于此状态
};
unsigned long assembler_state = AS_BEGIN;
//
// 在下面定义所有的关键字
//
// 段名称
const char* code_section_keyword = ".text"; // 代码段标志
char const* data_section_keyword = ".data"; // 数据段标志
// 指令名称
const char* mov_instruction_keyword = "mov";
const char* jmp_instruction_keyword = "jmp";
const char* add_instruction_keyword = "add";
const char* adc_instruction_keyword = "adc";
const char* sub_instruction_keyword = "sub";
const char* sbb_instruction_keyword = "sbb";
const char* and_instruction_keyword = "and";
const char* or_instruction_keyword = "or";
const char* read_instruction_keyword = "read";
const char* write_instruction_keyword = "write";
const char* jc_instruction_keyword = "jc";
const char* jz_instruction_keyword = "jz";
const char* call_instruction_keyword = "call";
const char* in_instruction_keyword = "in";
const char* out_instruction_keyword = "out";
const char* ret_instruction_keyword = "ret";
const char* shr_instruction_keyword = "shr";
const char* shl_instruction_keyword = "shl";
const char* rcr_instruction_keyword = "rcr";
const char* rcl_instruction_keyword = "rcl";
const char* not_instruction_keyword = "not";
const char* iret_instruction_keyword = "iret";
const char* nop_instruction_keyword = "nop";
const char* int_instruction_keyword = "int";
const char* lea_instruction_keyword = "lea";
// 通用寄存器名称
const char* r0_register_keyword = "r0";
const char* r1_register_keyword = "r1";
const char* r2_register_keyword = "r2";
const char* r3_register_keyword = "r3";
const char* r0_register_indirect_keyword = "[r0]";
const char* r1_register_indirect_keyword = "[r1]";
const char* r2_register_indirect_keyword = "[r2]";
const char* r3_register_indirect_keyword = "[r3]";
const char* a_register_keyword = "a";
const char* st_register_keyword = "st";
const char* delimit_char = "\n\t\r "; // 需要忽略的空白字符
const char* delimit_char_comma = "\n\t\r, "; // 需要忽略的空白字符，包括英文逗号
// 汇编产生的机器码
#define MAX_MACHINE_CODE 1024
BYTE machine_code[MAX_MACHINE_CODE];
unsigned long machine_code_address = 0;
unsigned long machine_code_old_address = 0;
const char* assembly_file_name = NULL; // 汇编文件路径
const char* target_file_name = NULL; // 目标文件路径
const char* list_file_name = NULL; // 列表文件路径
const char* dbg_file_name = NULL; // 调试信息文件路径
const unsigned long dbg_file_magic = 58;
const unsigned long dbg_file_version = 1;
// 输出汇编过程中发现的语法错误信息
void error_msg(const char* error_msg, int line_num)
{
if(line_num >= 1)
{
printf("%s:%d: error: %s\n", assembly_file_name, line_num, error_msg);
}
else
{
printf("%s: error: %s\n", assembly_file_name, error_msg);
}
exit(1);
}
char formated_msg[1024]; // 将格式化后的错误信息放在此字符串中。
void error_msg_miss_op(const char* instruction_name, int line_num)
{
sprintf(formated_msg, "%s 指令缺少操作数。", instruction_name);
error_msg(formated_msg, line_num);
}
void error_msg_wrong_op(const char* instruction_name, int line_num)
{
sprintf(formated_msg, "%s 指令不支持这样的操作数。", instruction_name);
error_msg(formated_msg, line_num);
}
void error_msg_same_symbol(const char* symbol, int line_num, int ref_line_num)
{
sprintf(formated_msg, "符号 %s 重复定义。参见第 %d 行。", symbol, ref_line_num);
error_msg(formated_msg, line_num);
}
void error_msg_keyword_symbol(const char* symbol, int line_num)
{
sprintf(formated_msg, "不能使用保留的关键字 %s 作为符号名称。", symbol);
error_msg(formated_msg, line_num);
}
void error_msg_wrong_data(const char* data, int line_num)
{
sprintf(formated_msg, "%s 不是有效的数据。", data);
error_msg(formated_msg, line_num);
}
// 输出汇编过程中发现的警告信息
void warning_msg(const char* warning_msg, int line_num)
{
if(line_num >= 1)
{
printf("%s:%d: warning: %s\n", assembly_file_name, line_num, warning_msg);
}
else
{
printf("%s: warning: %s\n", assembly_file_name, warning_msg);
}
}
void warning_msg_invalid_line(int line_num)
{
warning_msg("忽略无效的代码行。", line_num);
}
void warning_msg_unref_symbol(const char* symbol, int line_num)
{
sprintf(formated_msg, "符号 %s 未被引用。", symbol);
warning_msg(formated_msg, line_num);
}
// 判断是否是立即数。如果是数字开头，或者是负号开头的，就认为是立即数。
int is_immediate(const char* token)
{
return (isdigit(token[0]) || '-' == token[0]) ? 1 : 0;
}
// 判断是否是主存数据
int is_main_memory(const char* token)
{
return (isdigit(token[0]) || '@' == token[0]) ? 1 : 0;
}
// 指令操作数类型
enum
{
OT_REGISTER_A // 累加器
,OT_REGISTER_R0 // r0
,OT_REGISTER_R1 // r1
,OT_REGISTER_R2 // r2
,OT_REGISTER_R3 // r3
,OT_REGISTER_R0_INDIRECT // [r0]
,OT_REGISTER_R1_INDIRECT // [r1]
,OT_REGISTER_R2_INDIRECT // [r2]
,OT_REGISTER_R3_INDIRECT // [r3]
,OT_IMMEDIATE // 立即数
,OT_SYMBOL // 符号
,OT_REGISTER_ST // 堆栈寄存器
};
// 得到指令操作数的类型
unsigned long get_operand_type(const char* op)
{
unsigned long op_type;
if(stricmp(op, a_register_keyword) == 0)
{
op_type = OT_REGISTER_A;
}
else if(stricmp(op, r0_register_keyword) == 0)
{
op_type = OT_REGISTER_R0;
}
else if(stricmp(op, r1_register_keyword) == 0)
{
op_type = OT_REGISTER_R1;
}
else if(stricmp(op, r2_register_keyword) == 0)
{
op_type = OT_REGISTER_R2;
}
else if(stricmp(op, r3_register_keyword) == 0)
{
op_type = OT_REGISTER_R3;
}
else if(stricmp(op, r0_register_indirect_keyword) == 0)
{
op_type = OT_REGISTER_R0_INDIRECT;
}
else if(stricmp(op, r1_register_indirect_keyword) == 0)
{
op_type = OT_REGISTER_R1_INDIRECT;
}
else if(stricmp(op, r2_register_indirect_keyword) == 0)
{
op_type = OT_REGISTER_R2_INDIRECT;
}
else if(stricmp(op, r3_register_indirect_keyword) == 0)
{
op_type = OT_REGISTER_R3_INDIRECT;
}
else if (stricmp(op, st_register_keyword) == 0)
{
op_type = OT_REGISTER_ST;
}
else if(is_immediate(op))
{
op_type = OT_IMMEDIATE;
}
else
{
op_type = OT_SYMBOL;
}
return op_type;
}
// 根据 r? 寄存器和机器码的基础值，得到一个机器码
char get_machine_code_from_r(unsigned long op_type, char code_base)
{
return code_base + (char)(op_type - OT_REGISTER_R0);
}
// 根据 [r?] 寄存器和机器码的基础值，得到一个机器码
char get_machine_code_from_r_indirect(unsigned long op_type, char code_base)
{
return code_base + (char)(op_type - OT_REGISTER_R0_INDIRECT);
}
// 根据立即数得到一个机器码。注意，允许使用负数，所以返回值是带符号的 8 位 char。
char get_machine_code_from_immediate(const char* immediate)
{
char* end;
int start_index = (immediate[0] == '-' ? 1 : 0);
int base = (immediate[start_index] == '0' && (immediate[start_index + 1] == 'x' || immediate[start_index + 1] == 'X')) ? 16 : 10;
return (char)strtol(immediate, &end, base);
}
// 向重定位表中添加一个重定位信息
void add_reallocate(const char* symbol, int line_num)
{
reallocate_table[reallocate_count].address = machine_code_address;
strcpy(reallocate_table[reallocate_count].symbol_name, symbol);
reallocate_table[reallocate_count].line_num = line_num;
reallocate_count++;
}
// mov op1, op2
void parse_mov(int line_num)
{
char *op1, *op2;
unsigned long op1_type, op2_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op1 = strtok(NULL, delimit_char_comma);
op2 = strtok(NULL, delimit_char);
if(NULL == op1 || NULL == op2)
{
error_msg_miss_op(mov_instruction_keyword, line_num);
}
op1_type = get_operand_type(op1);
op2_type = get_operand_type(op2);
if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0 && op2_type <= OT_REGISTER_R3))
{
// mov a, r?
machine_code[machine_code_address] = get_machine_code_from_r(op2_type, 0x70);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0_INDIRECT && op2_type <= OT_REGISTER_R3_INDIRECT))
{
// mov a, [r?]
machine_code[machine_code_address] = get_machine_code_from_r_indirect(op2_type, 0x74);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_SYMBOL == op2_type)
{
// mov a, symbol
machine_code[machine_code_address] = 0x78;
machine_code_address++;
// 重定位
add_reallocate(op2, line_num);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_IMMEDIATE == op2_type)
{
// mov a, immediate
machine_code[machine_code_address] = 0x7c;
machine_code_address++;
machine_code[machine_code_address] = get_machine_code_from_immediate(op2);
machine_code_address++;
}
else if((op1_type >= OT_REGISTER_R0 && op1_type <= OT_REGISTER_R3)
&& OT_REGISTER_A == op2_type)
{
// mov r?, a
machine_code[machine_code_address] = get_machine_code_from_r(op1_type, 0x80);
machine_code_address++;
}
else if((op1_type >= OT_REGISTER_R0_INDIRECT && op1_type <= OT_REGISTER_R3_INDIRECT)
&& OT_REGISTER_A == op2_type)
{
// mov [r?], a
machine_code[machine_code_address] = get_machine_code_from_r_indirect(op1_type, 0x84);
machine_code_address++;
}
else if(OT_SYMBOL == op1_type && OT_REGISTER_A == op2_type)
{
// mov symbol, a
machine_code[machine_code_address] = 0x88;
machine_code_address++;
// 重定位
add_reallocate(op1, line_num);
machine_code_address++;
}
else if((op1_type >= OT_REGISTER_R0 && op1_type <= OT_REGISTER_R3)
&& OT_IMMEDIATE == op2_type)
{
// mov r?, immediate
machine_code[machine_code_address] = get_machine_code_from_r(op1_type, 0x8c);
machine_code_address++;
machine_code[machine_code_address] = get_machine_code_from_immediate(op2);
machine_code_address++;
}
else if (OT_REGISTER_ST == op1_type && OT_IMMEDIATE == op2_type)
{
// mov st, immediate
machine_code[machine_code_address] = 0x9c;
machine_code_address++;
machine_code[machine_code_address] = get_machine_code_from_immediate(op2);
machine_code_address++;
}
else
{
error_msg_wrong_op(mov_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// jmp symbol
void parse_jmp(int line_num)
{
char *op;
unsigned long op_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op = strtok(NULL, delimit_char);
if(NULL == op)
{
error_msg_miss_op(jmp_instruction_keyword, line_num);
}
op_type = get_operand_type(op);
if(OT_SYMBOL == op_type)
{
// jmp symbol
machine_code[machine_code_address] = 0xAC;
machine_code_address++;
// 重定位
add_reallocate(op, line_num);
machine_code_address++;
}
else
{
error_msg_wrong_op(jmp_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// add op1, op2
void parse_add(int line_num)
{
char *op1, *op2;
unsigned long op1_type, op2_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op1 = strtok(NULL, delimit_char_comma);
op2 = strtok(NULL, delimit_char);
if(NULL == op1 || NULL == op2)
{
error_msg_miss_op(add_instruction_keyword, line_num);
}
op1_type = get_operand_type(op1);
op2_type = get_operand_type(op2);
if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0 && op2_type <= OT_REGISTER_R3))
{
// add a, r?
machine_code[machine_code_address] = get_machine_code_from_r(op2_type, 0x10);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0_INDIRECT && op2_type <= OT_REGISTER_R3_INDIRECT))
{
// add a, [r?]
machine_code[machine_code_address] = get_machine_code_from_r_indirect(op2_type, 0x14);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_SYMBOL == op2_type)
{
// add a, symbol
machine_code[machine_code_address] = 0x18;
machine_code_address++;
// 重定位
add_reallocate(op2, line_num);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_IMMEDIATE == op2_type)
{
// add a, immediate
machine_code[machine_code_address] = 0x1c;
machine_code_address++;
machine_code[machine_code_address] = get_machine_code_from_immediate(op2);
machine_code_address++;
}
else
{
error_msg_wrong_op(add_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// adc op1, op2
void parse_adc(int line_num)
{
char *op1, *op2;
unsigned long op1_type, op2_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op1 = strtok(NULL, delimit_char_comma);
op2 = strtok(NULL, delimit_char);
if(NULL == op1 || NULL == op2)
{
error_msg_miss_op(adc_instruction_keyword, line_num);
}
op1_type = get_operand_type(op1);
op2_type = get_operand_type(op2);
if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0 && op2_type <= OT_REGISTER_R3))
{
// adc a, r?
machine_code[machine_code_address] = get_machine_code_from_r(op2_type, 0x20);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0_INDIRECT && op2_type <= OT_REGISTER_R3_INDIRECT))
{
// adc a, [r?]
machine_code[machine_code_address] = get_machine_code_from_r_indirect(op2_type, 0x24);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_SYMBOL == op2_type)
{
// adc a, symbol
machine_code[machine_code_address] = 0x28;
machine_code_address++;
// 重定位
add_reallocate(op2, line_num);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_IMMEDIATE == op2_type)
{
// adc a, immediate
machine_code[machine_code_address] = 0x2c;
machine_code_address++;
machine_code[machine_code_address] = get_machine_code_from_immediate(op2);
machine_code_address++;
}
else
{
error_msg_wrong_op(adc_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// sub op1, op2
void parse_sub(int line_num)
{
char *op1, *op2;
unsigned long op1_type, op2_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op1 = strtok(NULL, delimit_char_comma);
op2 = strtok(NULL, delimit_char);
if(NULL == op1 || NULL == op2)
{
error_msg_miss_op(sub_instruction_keyword, line_num);
}
op1_type = get_operand_type(op1);
op2_type = get_operand_type(op2);
if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0 && op2_type <= OT_REGISTER_R3))
{
// sub a, r?
machine_code[machine_code_address] = get_machine_code_from_r(op2_type, 0x30);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0_INDIRECT && op2_type <= OT_REGISTER_R3_INDIRECT))
{
// sub a, [r?]
machine_code[machine_code_address] = get_machine_code_from_r_indirect(op2_type, 0x34);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_SYMBOL == op2_type)
{
// sub a, symbol
machine_code[machine_code_address] = 0x38;
machine_code_address++;
// 重定位
add_reallocate(op2, line_num);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_IMMEDIATE == op2_type)
{
// sub a, immediate
machine_code[machine_code_address] = 0x3c;
machine_code_address++;
machine_code[machine_code_address] = get_machine_code_from_immediate(op2);
machine_code_address++;
}
else
{
error_msg_wrong_op(sub_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// sbb op1, op2
void parse_sbb(int line_num)
{
char *op1, *op2;
unsigned long op1_type, op2_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op1 = strtok(NULL, delimit_char_comma);
op2 = strtok(NULL, delimit_char);
if(NULL == op1 || NULL == op2)
{
error_msg_miss_op(sbb_instruction_keyword, line_num);
}
op1_type = get_operand_type(op1);
op2_type = get_operand_type(op2);
if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0 && op2_type <= OT_REGISTER_R3))
{
// sbb a, r?
machine_code[machine_code_address] = get_machine_code_from_r(op2_type, 0x40);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0_INDIRECT && op2_type <= OT_REGISTER_R3_INDIRECT))
{
// sbb a, [r?]
machine_code[machine_code_address] = get_machine_code_from_r_indirect(op2_type, 0x44);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_SYMBOL == op2_type)
{
// sbb a, symbol
machine_code[machine_code_address] = 0x48;
machine_code_address++;
// 重定位
add_reallocate(op2, line_num);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_IMMEDIATE == op2_type)
{
// sbb a, immediate
machine_code[machine_code_address] = 0x4c;
machine_code_address++;
machine_code[machine_code_address] = get_machine_code_from_immediate(op2);
machine_code_address++;
}
else
{
error_msg_wrong_op(sbb_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// and op1, op2
void parse_and(int line_num)
{
char *op1, *op2;
unsigned long op1_type, op2_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op1 = strtok(NULL, delimit_char_comma);
op2 = strtok(NULL, delimit_char);
if(NULL == op1 || NULL == op2)
{
error_msg_miss_op(and_instruction_keyword, line_num);
}
op1_type = get_operand_type(op1);
op2_type = get_operand_type(op2);
if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0 && op2_type <= OT_REGISTER_R3))
{
// and a, r?
machine_code[machine_code_address] = get_machine_code_from_r(op2_type, 0x50);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0_INDIRECT && op2_type <= OT_REGISTER_R3_INDIRECT))
{
// and a, [r?]
machine_code[machine_code_address] = get_machine_code_from_r_indirect(op2_type, 0x54);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_SYMBOL == op2_type)
{
// and a, symbol
machine_code[machine_code_address] = 0x58;
machine_code_address++;
// 重定位
add_reallocate(op2, line_num);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_IMMEDIATE == op2_type)
{
// and a, immediate
machine_code[machine_code_address] = 0x5c;
machine_code_address++;
machine_code[machine_code_address] = get_machine_code_from_immediate(op2);
machine_code_address++;
}
else
{
error_msg_wrong_op(and_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// or op1, op2
void parse_or(int line_num)
{
char *op1, *op2;
unsigned long op1_type, op2_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op1 = strtok(NULL, delimit_char_comma);
op2 = strtok(NULL, delimit_char);
if(NULL == op1 || NULL == op2)
{
error_msg_miss_op(or_instruction_keyword, line_num);
}
op1_type = get_operand_type(op1);
op2_type = get_operand_type(op2);
if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0 && op2_type <= OT_REGISTER_R3))
{
// or a, r?
machine_code[machine_code_address] = get_machine_code_from_r(op2_type, 0x60);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type
&& (op2_type >= OT_REGISTER_R0_INDIRECT && op2_type <= OT_REGISTER_R3_INDIRECT))
{
// or a, [r?]
machine_code[machine_code_address] = get_machine_code_from_r_indirect(op2_type, 0x64);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_SYMBOL == op2_type)
{
// or a, symbol
machine_code[machine_code_address] = 0x68;
machine_code_address++;
// 重定位
add_reallocate(op2, line_num);
machine_code_address++;
}
else if(OT_REGISTER_A == op1_type && OT_IMMEDIATE == op2_type)
{
// or a, immediate
machine_code[machine_code_address] = 0x6c;
machine_code_address++;
machine_code[machine_code_address] = get_machine_code_from_immediate(op2);
machine_code_address++;
}
else
{
error_msg_wrong_op(or_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// lea a, symbol
void parse_lea(int line_num)
{
char *op1, *op2;
unsigned long op1_type, op2_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op1 = strtok(NULL, delimit_char_comma);
op2 = strtok(NULL, delimit_char);
if(NULL == op1 || NULL == op2)
{
error_msg_miss_op(lea_instruction_keyword, line_num);
}
op1_type = get_operand_type(op1);
op2_type = get_operand_type(op2);
if(OT_REGISTER_A == op1_type && OT_SYMBOL == op2_type)
{
// lea a, symbol
machine_code[machine_code_address] = 0x98;
machine_code_address++;
// 重定位
add_reallocate(op2, line_num);
machine_code_address++;
}
else
{
error_msg_wrong_op(lea_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// read symbol
void parse_read(int line_num)
{
char *op;
unsigned long op_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op = strtok(NULL, delimit_char);
if(NULL == op)
{
error_msg_miss_op(read_instruction_keyword, line_num);
}
op_type = get_operand_type(op);
if(OT_SYMBOL == op_type)
{
// read symbol
machine_code[machine_code_address] = 0x90;
machine_code_address++;
// 重定位
add_reallocate(op, line_num);
machine_code_address++;
}
else
{
error_msg_wrong_op(read_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// write symbol
void parse_write(int line_num)
{
char *op;
unsigned long op_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op = strtok(NULL, delimit_char);
if(NULL == op)
{
error_msg_miss_op(write_instruction_keyword, line_num);
}
op_type = get_operand_type(op);
if(OT_SYMBOL == op_type)
{
// write symbol
machine_code[machine_code_address] = 0x94;
machine_code_address++;
// 重定位
add_reallocate(op, line_num);
machine_code_address++;
}
else
{
error_msg_wrong_op(write_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// jc symbol
void parse_jc(int line_num)
{
char *op;
unsigned long op_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op = strtok(NULL, delimit_char);
if(NULL == op)
{
error_msg_miss_op(jc_instruction_keyword, line_num);
}
op_type = get_operand_type(op);
if(OT_SYMBOL == op_type)
{
// jc symbol
machine_code[machine_code_address] = 0xA0;
machine_code_address++;
// 重定位
add_reallocate(op, line_num);
machine_code_address++;
}
else
{
error_msg_wrong_op(jc_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// jz symbol
void parse_jz(int line_num)
{
char *op;
unsigned long op_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op = strtok(NULL, delimit_char);
if(NULL == op)
{
error_msg_miss_op(jz_instruction_keyword, line_num);
}
op_type = get_operand_type(op);
if(OT_SYMBOL == op_type)
{
// jz symbol
machine_code[machine_code_address] = 0xA4;
machine_code_address++;
// 重定位
add_reallocate(op, line_num);
machine_code_address++;
}
else
{
error_msg_wrong_op(jz_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// call symbol
void parse_call(int line_num)
{
char *op;
unsigned long op_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op = strtok(NULL, delimit_char);
if(NULL == op)
{
error_msg_miss_op(call_instruction_keyword, line_num);
}
op_type = get_operand_type(op);
if(OT_SYMBOL == op_type)
{
// call symbol
machine_code[machine_code_address] = 0xE8;
machine_code_address++;
// 重定位
add_reallocate(op, line_num);
machine_code_address++;
}
else
{
error_msg_wrong_op(call_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// int immediate
void parse_int(int line_num)
{
char *op;
unsigned long op_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op = strtok(NULL, delimit_char);
if(NULL == op)
{
error_msg_miss_op(int_instruction_keyword, line_num);
}
op_type = get_operand_type(op);
if(OT_IMMEDIATE == op_type)
{
// int immediate
machine_code[machine_code_address] = 0xB8;
machine_code_address++;
machine_code[machine_code_address] = get_machine_code_from_immediate(op);
machine_code_address++;
}
else
{
error_msg_wrong_op(int_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// in
void parse_in(int line_num)
{
machine_code[machine_code_address] = 0xB0;
machine_code_address++;
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// out
void parse_out(int line_num)
{
machine_code[machine_code_address] = 0xB4;
machine_code_address++;
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// ret
void parse_ret(int line_num)
{
machine_code[machine_code_address] = 0xC8;
machine_code_address++;
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// shr a
void parse_shr(int line_num)
{
char *op;
unsigned long op_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op = strtok(NULL, delimit_char);
if(NULL == op)
{
error_msg_miss_op(shr_instruction_keyword, line_num);
}
op_type = get_operand_type(op);
if(OT_REGISTER_A == op_type)
{
machine_code[machine_code_address] = 0xD0;
machine_code_address++;
}
else
{
error_msg_wrong_op(shr_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// shl a
void parse_shl(int line_num)
{
char *op;
unsigned long op_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op = strtok(NULL, delimit_char);
if(NULL == op)
{
error_msg_miss_op(shl_instruction_keyword, line_num);
}
op_type = get_operand_type(op);
if(OT_REGISTER_A == op_type)
{
machine_code[machine_code_address] = 0xD4;
machine_code_address++;
}
else
{
error_msg_wrong_op(shl_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// rcr a
void parse_rcr(int line_num)
{
char *op;
unsigned long op_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op = strtok(NULL, delimit_char);
if(NULL == op)
{
error_msg_miss_op(rcr_instruction_keyword, line_num);
}
op_type = get_operand_type(op);
if(OT_REGISTER_A == op_type)
{
machine_code[machine_code_address] = 0xD8;
machine_code_address++;
}
else
{
error_msg_wrong_op(rcr_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// rcl a
void parse_rcl(int line_num)
{
char *op;
unsigned long op_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op = strtok(NULL, delimit_char);
if(NULL == op)
{
error_msg_miss_op(rcl_instruction_keyword, line_num);
}
op_type = get_operand_type(op);
if(OT_REGISTER_A == op_type)
{
machine_code[machine_code_address] = 0xDC;
machine_code_address++;
}
else
{
error_msg_wrong_op(rcl_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// not a
void parse_not(int line_num)
{
char *op;
unsigned long op_type;
if(assembler_state != AS_TEXT)
{
warning_msg_invalid_line(line_num);
return;
}
op = strtok(NULL, delimit_char);
if(NULL == op)
{
error_msg_miss_op(not_instruction_keyword, line_num);
}
op_type = get_operand_type(op);
if(OT_REGISTER_A == op_type)
{
machine_code[machine_code_address] = 0xE4;
machine_code_address++;
}
else
{
error_msg_wrong_op(not_instruction_keyword, line_num);
}
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// iret
void parse_iret(int line_num)
{
machine_code[machine_code_address] = 0xF8;
machine_code_address++;
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// nop
void parse_nop(int line_num)
{
machine_code[machine_code_address] = 0xE0;
machine_code_address++;
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// 向符号表中添加一个符号
void add_symbol(const char* symbol, int line_num)
{
int i;
// 符号名称不能重复
for(i=0; i<symbol_count; i++)
{
if(stricmp(symbol, symbol_table[i].name) == 0)
{
error_msg_same_symbol(symbol, line_num, symbol_table[i].line_num);
}
}
// 符号数量有限
if(symbol_count == MAX_SYMBOL_COUNT)
{
sprintf(formated_msg, "定义了太多的符号。最多可以定义 %d 个符号。", MAX_SYMBOL_COUNT);
error_msg(formated_msg, line_num);
}
// 添加符号
strcpy(symbol_table[symbol_count].name, symbol);
symbol_table[symbol_count].address = machine_code_address;
symbol_table[symbol_count].line_num = line_num;
symbol_count++;
}
// 解析符号
void parse_symbol(const char* symbol_with_colon, int line_num)
{
char symbol[MAX_SYMBOL_LENGTH];
char* token;
// 删除符号末尾的冒号
strcpy(symbol, symbol_with_colon);
symbol[strlen(symbol) - 1] = 0;
if(AS_TEXT == assembler_state)
{
// 代码段中的标号作为符号。记录到符号表中，不产生机器码。
add_symbol(symbol, line_num);
// 标号必须单独占一行，否则报错
if (strtok(NULL, delimit_char) != NULL)
{
error_msg("标号必须单独占用一行。", line_num);
}
}
else if(AS_DATA == assembler_state)
{
// 数据段中的变量作为符号。一个变量可以包含多个字节数据。记录到符号表中，产生机器码。
add_symbol(symbol, line_num);
while((token = strtok(NULL, delimit_char)) != NULL)
{
if(!is_immediate(token))
{
error_msg_wrong_data(token, line_num);
}
machine_code[machine_code_address] = get_machine_code_from_immediate(token);
machine_code_address++;
symbol_table[symbol_count - 1].machine_code_count++;
}
}
else
{
warning_msg_invalid_line(line_num);
}
}
// 解析代码段开始标志
void parse_code_section_keyword(int line_num)
{
// 代码段标志
if(AS_DATA == assembler_state)
{
error_msg("代码段不能定义在数据段的后面。", line_num);
}
else if(AS_TEXT == assembler_state)
{
error_msg("定义了重复的代码段。", line_num);
}
assembler_state = AS_TEXT;
}
// 解析数据段开始标志
void parse_data_section_keyword(int line_num)
{
// 数据段标志
if(AS_DATA == assembler_state)
{
error_msg("定义了重复的数据段。", line_num);
}
else if(AS_BEGIN == assembler_state)
{
error_msg("数据段不能定义在代码段的前面。", line_num);
}
assembler_state = AS_DATA;
}
// 定义关键字和解析函数的对应关系
typedef void (*PARSE_FUNCTION)(int line_num);
struct KEYWORD_FUNCTION_ENTRY
{
const char** keyword;
PARSE_FUNCTION parse_function;
};
//
// 必须将关键字及其解析函数放在下面的表中。从而可以使用“表驱动”的编程模式。
//
struct KEYWORD_FUNCTION_ENTRY keyword_function_table[] =
{
{ NULL, NULL } // 未用
,{ &code_section_keyword, parse_code_section_keyword }
,{ &data_section_keyword, parse_data_section_keyword }
,{ &mov_instruction_keyword, parse_mov }
,{ &jmp_instruction_keyword, parse_jmp }
,{ &add_instruction_keyword, parse_add }
,{ &adc_instruction_keyword, parse_adc }
,{ &sub_instruction_keyword, parse_sub }
,{ &sbb_instruction_keyword, parse_sbb }
,{ &and_instruction_keyword, parse_and }
,{ &or_instruction_keyword, parse_or }
,{ &read_instruction_keyword, parse_read }
,{ &write_instruction_keyword, parse_write }
,{ &jc_instruction_keyword, parse_jc }
,{ &jz_instruction_keyword, parse_jz }
,{ &call_instruction_keyword, parse_call }
,{ &in_instruction_keyword, parse_in }
,{ &out_instruction_keyword, parse_out }
,{ &ret_instruction_keyword, parse_ret }
,{ &shr_instruction_keyword, parse_shr }
,{ &shl_instruction_keyword, parse_shl }
,{ &rcr_instruction_keyword, parse_rcr }
,{ &rcl_instruction_keyword, parse_rcl }
,{ &not_instruction_keyword, parse_not }
,{ &iret_instruction_keyword, parse_iret }
,{ &nop_instruction_keyword, parse_nop }
,{ &int_instruction_keyword, parse_int }
,{ &lea_instruction_keyword, parse_lea }
,{ &r0_register_keyword, NULL }
,{ &r1_register_keyword, NULL }
,{ &r2_register_keyword, NULL }
,{ &r3_register_keyword, NULL }
,{ &r0_register_indirect_keyword, NULL }
,{ &r1_register_indirect_keyword, NULL }
,{ &r2_register_indirect_keyword, NULL }
,{ &r3_register_indirect_keyword, NULL }
,{ &a_register_keyword, NULL }
,{ &st_register_keyword, NULL }
};
// 判断是否是一个关键字。返回0，不是关键字；返回非0，是关键字，并且返回值就是关键字在表中的下标。
int match_keyword(const char* token)
{
int i;
for(i=1; i<sizeof(keyword_function_table)/sizeof(keyword_function_table[0]); i++)
{
if(stricmp(token, *keyword_function_table[i].keyword) == 0)
{
return i;
}
}
return 0;
}
// 判断是否是一个符号
int is_symbol(const char* token, int line_num)
{
int i;
char symbol_name[MAX_SYMBOL_LENGTH];
// 最后一个字符必须是冒号
if(token[strlen(token) - 1] != ':')
{
return 0;
}
// 第一个字符必须是字母或者下划线
if(token[0] != '_' && !isalpha(token[0]))
{
return 0;
}
// 后面的字符必须是字母、数字、下划线
for(i=0; i<(int)strlen(token)-2; i++)
{
if(token[i] != '_' && !isalpha(token[i]) && !isdigit(token[i]))
{
return 0;
}
}
// 不能与关键字相同
strcpy(symbol_name, token);
symbol_name[strlen(symbol_name) - 1] = 0;
if(match_keyword(symbol_name) != 0)
{
error_msg_keyword_symbol(symbol_name, line_num);
}
return 1;
}
// 输出版本信息
void version_msg()
{
printf(
"Engintime DM1000 8位模型机汇编器 [版本 2.0]\n"
"版权所有 (c) 2008-2018 北京英真时代科技有限公司。保留所有权利。\n"
);
}
// 输出帮助信息
void help_msg()
{
printf(
"Engintime DM1000 8位模型机汇编器。\n\n"
"用法:\n\n"
" dmasm.exe assembly_file_name [options]\n\n"
"选项:\n\n"
" -g debug_file_name\t指定生成的调试信息文件路径。\n"
" -h\t\t\t打印此帮助信息。\n"
" -l list_file_name\t指定生成的列表文件路径。\n"
" -o target_file_name\t指定生成的目标文件路径。若未指定，默认生成 a.obj 文件。\n"
" -v\t\t\t打印版本信息。\n"
);
printf("\n");
version_msg();
exit(1);
}
void argument_error_msg()
{
printf("命令行参数错误。\n\n");
help_msg();
}
// 处理器用户输入的命令行参数
void process_argument(int argc, char* argv[])
{
int i;
// argv[0] 是 "easm.exe"，所以可以忽略。
for(i=1; i<argc; i++)
{
if(strcmp(argv[i], "-v") == 0)
{
version_msg();
exit(1);
}
else if(strcmp(argv[i], "-h") == 0)
{
help_msg();
}
else if(strcmp(argv[i], "-o") == 0)
{
if(i + 1 < argc)
{
i++;
target_file_name = argv[i];
}
else
{
argument_error_msg();
}
}
else if(strcmp(argv[i], "-l") == 0)
{
if(i + 1 < argc)
{
i++;
list_file_name = argv[i];
}
else
{
argument_error_msg();
}
}
else if(strcmp(argv[i], "-g") == 0)
{
if(i + 1 < argc)
{
i++;
dbg_file_name = argv[i];
}
else
{
argument_error_msg();
}
}
else if(NULL == assembly_file_name && argv[i][0] != '-')
{
// 输入的汇编源代码文件路径。
assembly_file_name = argv[i];
}
else
{
argument_error_msg();
}
}
//
// 如果命令行参数中没有指定输入的汇编文件，就打印错误信息后退出
//
if(NULL == assembly_file_name)
{
printf("命令行参数错误。没有指定汇编源代码文件的路径。\n");
help_msg();
}
}
// 将一个字符串写入二进制文件中。先将字符串长度写入文件，然后将字符串中的
// 每个字符依次写入文件，不包括字符串末尾的 0.
void write_string_to_binary_file(const char* str, FILE* fp)
{
int str_length;
if(str != NULL)
{
str_length = strlen(str);
fwrite(&str_length, 1, sizeof(str_length), fp);
fwrite(str, 1, str_length, fp);
}
else
{
str_length = 0;
fwrite(&str_length, 1, sizeof(str_length), fp);
}
}
int main(int argc, char* argv[])
{
FILE* fp;
char* token;
char line[MAX_LINE_LENGTH];
int i, j;
int line_num = 1; // 行号从第一行开始计数
int keyword_index;
//
// 处理命令行参数
//
process_argument(argc, argv);
//
// 打开汇编源代码文件
//
fp = fopen(assembly_file_name, "r");
if(NULL == fp)
{
printf("无法打开源代码文件 %s\n", assembly_file_name);
return 1;
}
//////////////////////////////////////////////////////////////////////////
// 第一遍扫描
version_msg();
printf("\n正在汇编 %s...\n", assembly_file_name);
//
// 一次读取一行文本，同时记录所有的代码行信息
//
while(fgets(line, sizeof(line), fp) != NULL)
{
//
// 将一行代码的信息记录到代码行数据库中
//
strcpy(line_database[line_count].line_string, line);
line_database[line_count].line_num = line_num;
line_database[line_count].address = machine_code_address;
//
// 将代码行中的注释剥离
//
line[strcspn(line, ";")] = 0;
//
// 开始解析代码行
//
token = strtok(line, delimit_char);
if(NULL == token)
{
// 如果是空行，不做任何处理
}
else if((keyword_index = match_keyword(token)) != 0
&& keyword_function_table[keyword_index].parse_function != NULL)
{
// 根据关键字进行相应的处理
keyword_function_table[keyword_index].parse_function(line_num);
}
else if(is_symbol(token, line_num))
{
// 处理符号
parse_symbol(token, line_num);
}
else
{
error_msg("无法识别的代码行。", line_num);
}
//
// 补充代码行数据库信息
//
line_database[line_count].machine_code_count = machine_code_address - machine_code_old_address;
machine_code_old_address = machine_code_address;
//
// 记录产生了机器码的代码行数量
//
if(line_database[line_count].machine_code_count != 0)
{
machine_code_line_count++;
}
//
// 增加行号
//
line_count++;
line_num++;
if(line_count == MAX_LINE_COUNT)
{
sprintf(formated_msg, "汇编文件中的代码行过多，最多只能有 %d 行代码。", MAX_LINE_COUNT);
error_msg(formated_msg, -1);
}
}
fclose(fp);
//////////////////////////////////////////////////////////////////////////
// 第二遍扫描
//
// 根据符号表更新重定位表
//
for(i=0; i<reallocate_count; i++)
{
for(j=0; j<symbol_count; j++)
{
if(stricmp(symbol_table[j].name, reallocate_table[i].symbol_name) == 0)
{
machine_code[reallocate_table[i].address] = (BYTE)symbol_table[j].address;
symbol_table[j].ref_count++;
break;
}
}
if(j == symbol_count)
{
// 重定位表中使用的符号在符号表中未定义，报错
sprintf(formated_msg, "使用了未定义的符号 %s。", reallocate_table[i].symbol_name);
error_msg(formated_msg, reallocate_table[i].line_num);
}
}
//
// 如果存在未引用的符号，输出警告信息。
//
for(i=0; i<symbol_count; i++)
{
if(0 == symbol_table[i].ref_count)
{
warning_msg_unref_symbol(symbol_table[i].name, symbol_table[i].line_num);
}
}
//////////////////////////////////////////////////////////////////////////
// 产生各种输出文件
//
// 将机器码写入二进制文件
//
if(NULL == target_file_name)
{
target_file_name = "a.obj";
}
fp = fopen(target_file_name, "wb");
if(NULL == fp)
{
printf("无法打开输出文件 %s\n", target_file_name);
return 1;
}
fwrite(machine_code, 1, machine_code_address, fp);
fclose(fp);
printf("\n生成目标文件 %s\n", target_file_name);
//
// 将代码行数据库中的信息写入列表文件
//
if(list_file_name != NULL)
{
fp = fopen(list_file_name, "w");
if(NULL == fp)
{
printf("无法打开列表文件 %s\n", list_file_name);
return 1;
}
for(i=0; i<line_count; i++)
{
// 行号
fprintf(fp, "%04d ", line_database[i].line_num);
// 地址和机器码
if(line_database[i].machine_code_count > 0)
{
fprintf(fp, "%02X ", line_database[i].address);
for(j=0; j<line_database[i].machine_code_count; j++)
{
// 确保每行最多写两个字节的机器码
if(j != 0 && j % 2 == 0)
{
if(2 == j)
{
fprintf(fp, " ");
}
else
{
fprintf(fp, "\n ");
}
}
fprintf(fp, "%02X ", machine_code[line_database[i].address + j]);
if(1 == j)
{
fprintf(fp, " ");
fprintf(fp, line_database[i].line_string);
}
}
if(1 == j)
{
fprintf(fp, " ");
fprintf(fp, line_database[i].line_string);
}
else if(j > 2)
{
fprintf(fp, "\n");
}
}
else
{
fprintf(fp, " ");
// 源代码
fprintf(fp, line_database[i].line_string);
}
}
fclose(fp);
printf("生成列表文件 %s\n", list_file_name);
}
//
// 将代码行数据库中的信息写入二进制的调试信息文件。
//
// 调试信息的基本格式为：
// 魔数（4字节），固定不可改变
// 版本号（4字节），固定不可改变
// 源代码文件绝对路径字符串长度（4字节）
// 源代码文件绝对路径字符串（不包括字符串结尾的0）
// 列表文件绝对路径字符串长度（4字节）
// 列表文件绝对路径字符串（不包括字符串结尾的0）
//
// 代码行数据库中元素的数量（4字节）
// 代码行数据库中的所有元素
//
// 符号表元素的数量（4字节）
// 符号表中的所有元素
//
if(dbg_file_name != NULL)
{
fp = fopen(dbg_file_name, "wb");
if(NULL == fp)
{
printf("无法打开调试信息文件 %s\n", dbg_file_name);
return 1;
}
// 魔数
fwrite(&dbg_file_magic, 1, sizeof(dbg_file_magic), fp);
// 版本号
fwrite(&dbg_file_version, 1, sizeof(dbg_file_version), fp);
// 源代码文件路径
write_string_to_binary_file(assembly_file_name, fp);
// 列表文件路径
write_string_to_binary_file(list_file_name, fp);
// 代码行数据库中的所有元素
fwrite(&machine_code_line_count, 1, sizeof(machine_code_line_count), fp);
for(i=0; i<line_count; i++)
{
// 跳过没有产生机器码的代码行
if(0 == line_database[i].machine_code_count)
{
continue;
}
fwrite(&line_database[i].line_num, 1, sizeof(unsigned long), fp);
fwrite(&line_database[i].address, 1, sizeof(unsigned long), fp);
fwrite(&line_database[i].machine_code_count, 1, sizeof(int), fp);
fwrite(&line_database[i].flag, 1, sizeof(unsigned long), fp);
}
// 符号表中的所有元素
fwrite(&symbol_count, 1, sizeof(symbol_count), fp);
for(i=0; i<symbol_count; i++)
{
write_string_to_binary_file(symbol_table[i].name, fp);
fwrite(&symbol_table[i].address, 1, sizeof(unsigned long), fp);
fwrite(&symbol_table[i].machine_code_count, 1, sizeof(int), fp);
fwrite(&symbol_table[i].line_num, 1, sizeof(int), fp);
}
fclose(fp);
printf("生成调试信息文件 %s\n", dbg_file_name);
}
return 0;
}
dmasm.exe 0 → 100644
浏览文件 @ da55accb
添加文件
microasm.c 0 → 100644
浏览文件 @ da55accb
/*******************************************************************************
Copyright (c) 2008 - 2018 北京英真时代科技有限公司。保留所有权利。
*******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
typedef unsigned char BYTE;
typedef long BOOL;
#define FALSE 0
#define TRUE 1
#define MAX_LINE_LENGTH 256 // 一行代码最多可以有多少个字符
#define MAX_LINE_COUNT 1024 // 源代码文件最多可以有多少行
#define MAX_SYMBOL_LENGTH 64 // 一个符号最多可以包含多少个字符
#define MAX_SYMBOL_COUNT 256 // 源代码文件中最多可以包含多少个符号
#ifndef MAX_PATH
#define MAX_PATH 256 // 文件路径最多可以包含多少了字符
#endif
// 代码行数据库。记录源代码文件中所有代码行的信息（包括注释行、空行）
struct LINE_RECORD
{
char line_string[MAX_LINE_LENGTH]; // 代码行的内容
unsigned long line_num; // 行号
unsigned long address; // 此行代码转换的机器码在映像文件中的地址（偏移）。注意，对于 DM1000 来说，微指令的一个地址对应 4 个字节。
int machine_code_count; // 此行代码转换的机器码的字节数量
unsigned long flag; // 代码行标志位，32位
};
struct LINE_RECORD line_database[MAX_LINE_COUNT] = {0};
int line_count = 0;
int machine_code_line_count = 0; // 记录产生了机器码的代码行的数量
// 在此定义所有的代码行标志位。注意，代码行标志位是按位或的关系。
#define LF_INSTRUCTION 0x00000001 // 代码行标志位的最低位是1，表示此行是一条指令，否则表示此行是数据
//
// 在下面定义所有的关键字
//
// 寄存器名称
const char* rx_register_keyword = "rx";
const char* mar_register_keyword = "mar";
const char* rin_register_keyword = "rin";
const char* rout_register_keyword = "rout";
const char* st_register_keyword = "st";
const char* ia_register_keyword = "ia";
const char* ir_register_keyword = "ir";
const char* flag_register_keyword = "flag";
const char* pc_register_keyword = "pc";
const char* a_register_keyword = "a";
const char* w_register_keyword = "w";
const char* asr_register_keyword = "asr";
const char* upc_register_keyword = "upc";
// 堆栈计数器
const char* cst_counter_keyword = "cst";
//
// alu 操作码
const char* alu_add_keyword = "alu_add";
const char* alu_adc_keyword = "alu_adc";
const char* alu_sub_keyword = "alu_sub";
const char* alu_sbb_keyword = "alu_sbb";
const char* alu_and_keyword = "alu_and";
const char* alu_or_keyword = "alu_or";
const char* alu_aout_keyword = "alu_aout";
const char* alu_shr_keyword = "alu_shr";
const char* alu_shl_keyword = "alu_shl";
const char* alu_rcr_keyword = "alu_rcr";
const char* alu_rcl_keyword = "alu_rcl";
const char* alu_not_keyword = "alu_not";
const char* st_add_keyword = "st_add";
const char* st_minus_keyword = "st_minus";
const char* int_number_keyword = "int_number"; // 中断号
const char* int_ia_keyword = "int_ia";
const char* int_pc_keyword = "int_pc";
// 访问主存或外设的操作数
const char* pc_main_memory_keyword = "[pc]";
const char* pc_inc_main_memory_keyword = "[pc+]"; // 读出PC指向内存单元的值，同时允许PC加1
const char* mar_main_memory_keyword = "[mar]";
const char* mar_extern_memory_keyword = "<mar>";
const char* delimit_char = "\n\t\r "; // 需要忽略的空白字符
const char* delimit_char_comma = "\n\t\r, "; // 需要忽略的空白字符，包括英文逗号
// 单操作数微指令
struct ONE_OPERAND_INSTRUCTION_ENTRY
{
const char** op;
unsigned long micro_machine_code;
};
struct ONE_OPERAND_INSTRUCTION_ENTRY one_operand_table[] =
{
{ NULL, 0x0 } // 未用
,{ &pc_register_keyword, 0xffffffff } // inc pc
,{ &upc_register_keyword, 0xffffffcf } // reset upc
};
// 查表，操作数是否匹配。返回0，操作数不匹配；返回非0，操作数匹配，并且返回值就是操作数在表中的下标。
int match_one_operand(const char* op)
{
int i;
for(i=1; i<sizeof(one_operand_table)/sizeof(one_operand_table[0]); i++)
{
if((stricmp(op, *one_operand_table[i].op) == 0))
{
return i;
}
}
return 0;
}
// 双操作数微指令
struct PATH_INSTRUCTION_OPERAND_ENTRY
{
const char** op1;
const char** op2;
unsigned long micro_machine_code;
};
//////////////////////////////////////////////////////////////////////////
//
struct PATH_INSTRUCTION_OPERAND_ENTRY path_operand_table[] =
{
{ NULL, NULL, 0x0 } // 未用
,{ &pc_main_memory_keyword, &ir_register_keyword, 0xfff93fef } // path [pc], ir ff e3 ff ff
,{ &alu_add_keyword, &a_register_keyword, 0x99e4ffef } // path alu_add, a ff ff fe 90
,{ &alu_sub_keyword, &a_register_keyword, 0x86e4ffef } // path alu_sub, a ff ff fe 91
,{ &alu_or_keyword, &a_register_keyword, 0xbee4ffef } // path alu_or, a
,{ &alu_and_keyword, &a_register_keyword, 0xbbe4ffef } // path alu_and, a
,{ &alu_adc_keyword, &a_register_keyword, 0x89e4ffef } // path alu_adc, a
,{ &alu_sbb_keyword, &a_register_keyword, 0x96e4ffef } // path alu_sbb, a
,{ &alu_shr_keyword, &a_register_keyword, 0x90d5ffef } // path alu_shr, a ff ff fc b7
,{ &alu_shl_keyword, &a_register_keyword, 0x90d6ffef } // path alu_shl, a
,{ &alu_rcr_keyword, &a_register_keyword, 0x90e5ffef } // path alu_rcr, a
,{ &alu_rcl_keyword, &a_register_keyword, 0x90e6ffef } // path alu_rcl, a
,{ &alu_not_keyword, &a_register_keyword, 0xb0f4ffef } // path alu_not, a
,{ &rx_register_keyword, &w_register_keyword, 0x7ffaffef } // path rx, w
,{ &rx_register_keyword, &mar_register_keyword, 0xfffaf7ef } // path rx, mar
,{ &mar_main_memory_keyword, &w_register_keyword, 0x7ff9fbef } // path [mar], w
,{ &pc_main_memory_keyword, &mar_register_keyword, 0xfff977ef } // path [pc], mar
,{ &pc_main_memory_keyword, &w_register_keyword, 0x7ff97fef } // path [pc], w
,{ &rx_register_keyword, &a_register_keyword, 0xbffaffef } // path rx, a
,{ &mar_main_memory_keyword, &a_register_keyword, 0xbff9fbef } // path [mar], a 从地址寄存器指定的内存单元读数据到a寄存器
,{ &pc_main_memory_keyword, &a_register_keyword, 0xbff97fef } // path [pc], a
,{ &a_register_keyword, &rx_register_keyword, 0xd0b4ffef } // path a, rx
,{ &a_register_keyword, &mar_main_memory_keyword, 0xd0f4fbed } // path a, [mar] 将a寄存器数据写入地址寄存器指向的内存
,{ &pc_main_memory_keyword, &rx_register_keyword, 0xffb97fef } // path [pc], rx
,{ &mar_extern_memory_keyword, &a_register_keyword, 0xbff97fef } // path <mar>, a 从地址寄存器指定的外部设备读数据到a寄存器
,{ &alu_aout_keyword, &mar_main_memory_keyword, 0xd0f4fbec } // path alu_aout, [mar]
,{ &pc_main_memory_keyword, &pc_register_keyword, 0xfff96fef } // path [pc], pc
,{ &pc_inc_main_memory_keyword, &pc_register_keyword, 0xfff96fff } // path [+pc], pc 读出PC指向主存单元的内容，同时允许PC加1，主要用在jz和jc指令中
,{ &pc_register_keyword, &st_register_keyword, 0xfff3feef } // path pc, st
,{ &ia_register_keyword, &mar_register_keyword, 0xfff1f7ef } // path ia, mar
,{ &pc_register_keyword, &mar_register_keyword, 0xfff3f7ef } // path pc, mar
,{ &rin_register_keyword, &a_register_keyword, 0xbff0ffef } // path rin, a
,{ &a_register_keyword, &rout_register_keyword, 0xd0f4ffee } // path a, rout
,{ &mar_main_memory_keyword, &pc_register_keyword, 0xfff9ebef } // 从地址寄存器指定的内存单元读数据到程序计数器pc
,{ &pc_main_memory_keyword, &st_register_keyword, 0xfff97eef } // path [pc], st 执行后pc应加1指向下一条指令
,{ &st_register_keyword, &mar_register_keyword, 0xfff2f7ef } // path st, mar
,{ &st_register_keyword, &cst_counter_keyword, 0xff72ffef } // path st, cst
,{ &pc_main_memory_keyword, &ia_register_keyword, 0xfff97feb } // path [pc], ia 执行后pc应加1指向下一条指令
,{ &pc_main_memory_keyword, &asr_register_keyword, 0xfff97def } // path [pc], asr
,{ &cst_counter_keyword, &mar_register_keyword, 0xfff8f7ef } // path cst, mar
,{ &cst_counter_keyword, &st_register_keyword, 0xfff8feef } // path cst, st
,{ &st_add_keyword, &cst_counter_keyword, 0xffffffe7 } // path st_add, cst
,{ &st_minus_keyword, &cst_counter_keyword, 0xffffffef } // path st_minus, cst
,{ &pc_register_keyword, &mar_main_memory_keyword, 0xfff3fbed } // path pc, [mar] 将pc值写入mar指向的内存
,{ &asr_register_keyword, &pc_register_keyword, 0xfff7efef } // path asr, pc
,{ &st_register_keyword, &asr_register_keyword, 0xfff2fdef } // path st, asr
,{ &int_number_keyword, &ia_register_keyword, 0xfffbffeb } // path int_number, ia 将中断号给ia寄存器
,{ &int_ia_keyword, &pc_register_keyword, 0xfff1dfef } // path int_ia, pc
,{ &int_pc_keyword, &pc_register_keyword, 0xfff95fef } // path int_pc, pc
};
// 查表，判断两个操作数是否匹配。返回0，操作数不完全匹配；返回非0，操作数完全匹配，并且返回值就是操作数在表中的下标。
int match_ops(const char* op1, const char* op2)
{
int i;
for(i=1; i<sizeof(path_operand_table)/sizeof(path_operand_table[0]); i++)
{
if((stricmp(op1, *path_operand_table[i].op1) == 0)
&& (stricmp(op2, *path_operand_table[i].op2) == 0))
{
return i;
}
}
return 0;
}
// 汇编产生的机器码
#define MAX_MACHINE_CODE 1024
BYTE machine_code[MAX_MACHINE_CODE];
unsigned long machine_code_address = 0; // 一个地址对应一个字节
unsigned long machine_code_old_address = 0;
const char* micro_file_name = NULL; // 微指令文件路径
const char* target_file_name = NULL; // 目标文件路径
const char* list_file_name = NULL; // 列表文件路径
const char* dbg_file_name = NULL; // 调试信息文件路径
const unsigned long dbg_file_magic = 58;
const unsigned long dbg_file_version = 1;
// 输出汇编过程中发现的语法错误信息
void error_msg(const char* error_msg, int line_num)
{
if(line_num >= 1)
{
printf("%s:%d: error: %s\n", micro_file_name, line_num, error_msg);
}
else
{
printf("%s: error: %s\n", micro_file_name, error_msg);
}
exit(1);
}
char formated_msg[1024]; // 将格式化后的错误信息放在此字符串中。
void error_msg_miss_op(const char* instruction_name, int line_num)
{
sprintf(formated_msg, "%s 指令缺少操作数。", instruction_name);
error_msg(formated_msg, line_num);
}
void error_msg_wrong_op(const char* instruction_name, int line_num)
{
sprintf(formated_msg, "%s 指令不支持这样的操作数。", instruction_name);
error_msg(formated_msg, line_num);
}
// 定义关键字和解析函数的对应关系
typedef void (*PARSE_FUNCTION)(int line_num);
struct KEYWORD_FUNCTION_ENTRY
{
const char** keyword;
PARSE_FUNCTION parse_function;
};
// 指令名称
const char* dup_instruction_keyword = "dup";
const char* null_instruction_keyword = "null";
const char* path_instruction_keyword = "path";
const char* inc_instruction_keyword = "inc"; // pc+1
const char* reset_instruction_keyword = "reset"; // 复位
// 判断是否是立即数。不支持负数。
int is_immediate(const char* token)
{
return isdigit(token[0]);
}
// 根据立即数得到值。不支持负数。
unsigned long get_value_from_immediate(const char* immediate)
{
char* end;
int base = (immediate[0] == '0' && (immediate[1] == 'x' || immediate[1] == 'X')) ? 16 : 10;
return strtoul(immediate, &end, base);
}
// dup n, null
void parse_dup(int line_num)
{
char *op1, *op2;
int i;
unsigned long micro_instruction_count; // 微指令个数
unsigned long micro_code; // 微指令编码
op1 = strtok(NULL, delimit_char_comma);
op2 = strtok(NULL, delimit_char);
if(NULL == op1 || NULL == op2)
{
error_msg_miss_op(dup_instruction_keyword, line_num);
}
// dup微指令的第一个操作数必须是立即数(十进制或十六进制)
if (!is_immediate(op1))
{
error_msg_wrong_op(dup_instruction_keyword, line_num);
}
// 得到微指令个数
micro_instruction_count = get_value_from_immediate(op1);
// 解析第二个操作数
if (is_immediate(op2))
{
micro_code = get_value_from_immediate(op2);
}
else if(0 == stricmp(op2, null_instruction_keyword))
{
micro_code = 0xffffffff;
}
else
{
error_msg_wrong_op(dup_instruction_keyword, line_num);
}
for (i = 0; i < (int)micro_instruction_count; i++)
{
memcpy(&machine_code[machine_code_address], &micro_code, 4);
machine_code_address += 4;
}
}
// null
void parse_null(int line_num)
{
unsigned long ul = 0xffffffff;
memcpy(&machine_code[machine_code_address], &ul, 4);
machine_code_address += 4;
}
// path op1, op2
void parse_path(int line_num)
{
char *op1, *op2;
int index;
op1 = strtok(NULL, delimit_char_comma);
op2 = strtok(NULL, delimit_char);
if(NULL == op1 || NULL == op2)
{
error_msg_miss_op(path_instruction_keyword, line_num);
}
index = match_ops(op1, op2);
if (0 == index)
{
error_msg_wrong_op(path_instruction_keyword, line_num);
}
memcpy(&machine_code[machine_code_address], &path_operand_table[index].micro_machine_code, 4);
machine_code_address += 4;
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// inc
void parse_inc(int line_num)
{
char *op;
int index;
op = strtok(NULL, delimit_char_comma);
if(NULL == op)
{
error_msg_miss_op(inc_instruction_keyword, line_num);
}
index = match_one_operand(op);
if (0 == index)
{
error_msg_wrong_op(inc_instruction_keyword, line_num);
}
memcpy(&machine_code[machine_code_address], &one_operand_table[index].micro_machine_code, 4);
machine_code_address += 4;
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
// reset
void parse_reset(int line_num)
{
char *op;
int index;
op = strtok(NULL, delimit_char_comma);
if(NULL == op)
{
error_msg_miss_op(reset_instruction_keyword, line_num);
}
index = match_one_operand(op);
if (0 == index)
{
error_msg_wrong_op(reset_instruction_keyword, line_num);
}
memcpy(&machine_code[machine_code_address], &one_operand_table[index].micro_machine_code, 4);
machine_code_address += 4;
//
// 在代码行数据库中，标记此行是一个指令行
//
line_database[line_count].flag |= LF_INSTRUCTION;
}
//
// 必须将关键字及其解析函数放在下面的表中。从而可以使用“表驱动”的编程模式。
//
struct KEYWORD_FUNCTION_ENTRY keyword_function_table[] =
{
{ NULL, NULL } // 未用
,{ &dup_instruction_keyword, parse_dup }
,{ &null_instruction_keyword, parse_null }
,{ &path_instruction_keyword, parse_path }
,{ &inc_instruction_keyword, parse_inc }
,{ &reset_instruction_keyword, parse_reset }
};
// 判断是否是一个关键字。返回0，不是关键字；返回非0，是关键字，并且返回值就是关键字在表中的下标。
int match_keyword(const char* token)
{
int i;
for(i=1; i<sizeof(keyword_function_table)/sizeof(keyword_function_table[0]); i++)
{
if(stricmp(token, *keyword_function_table[i].keyword) == 0)
{
return i;
}
}
return 0;
}
// 输出版本信息
void version_msg()
{
printf(
"Engintime DM1000 8位模型机微指令汇编器 [版本 2.0]\n"
"版权所有 (c) 2008-2018 北京英真时代科技有限公司。保留所有权利。\n"
);
}
// 输出帮助信息
void help_msg()
{
printf(
"Engintime DM1000 8位模型机微指令汇编器。\n\n"
"用法:\n\n"
" microasm.exe micro_file_name [options]\n\n"
"选项:\n\n"
" -g debug_file_name\t指定生成的调试信息文件路径。\n"
" -h\t\t\t打印此帮助信息。\n"
" -l list_file_name\t指定生成的列表文件路径。\n"
" -o target_file_name\t指定生成的目标文件路径。若未指定，默认生成 micro.obj 文件。\n"
" -v\t\t\t打印版本信息。\n"
);
printf("\n");
version_msg();
exit(1);
}
void argument_error_msg()
{
printf("命令行参数错误。\n\n");
help_msg();
}
// 处理器用户输入的命令行参数
void process_argument(int argc, char* argv[])
{
int i;
// argv[0] 是 "easm.exe"，所以可以忽略。
for(i=1; i<argc; i++)
{
if(strcmp(argv[i], "-v") == 0)
{
version_msg();
exit(1);
}
else if(strcmp(argv[i], "-h") == 0)
{
help_msg();
}
else if(strcmp(argv[i], "-o") == 0)
{
if(i + 1 < argc)
{
i++;
target_file_name = argv[i];
}
else
{
argument_error_msg();
}
}
else if(strcmp(argv[i], "-l") == 0)
{
if(i + 1 < argc)
{
i++;
list_file_name = argv[i];
}
else
{
argument_error_msg();
}
}
else if(strcmp(argv[i], "-g") == 0)
{
if(i + 1 < argc)
{
i++;
dbg_file_name = argv[i];
}
else
{
argument_error_msg();
}
}
else if(NULL == micro_file_name && argv[i][0] != '-')
{
// 输入的汇编源代码文件路径。
micro_file_name = argv[i];
}
else
{
argument_error_msg();
}
}
//
// 如果命令行参数中没有指定输入的汇编文件，就打印错误信息后退出
//
if(NULL == micro_file_name)
{
printf("命令行参数错误。没有指定微指令源代码文件的路径。\n");
help_msg();
}
}
// 将一个字符串写入二进制文件中。先将字符串长度写入文件，然后将字符串中的
// 每个字符依次写入文件，不包括字符串末尾的 0.
void write_string_to_binary_file(const char* str, FILE* fp)
{
int str_length;
if(str != NULL)
{
str_length = strlen(str);
fwrite(&str_length, 1, sizeof(str_length), fp);
fwrite(str, 1, str_length, fp);
}
else
{
str_length = 0;
fwrite(&str_length, 1, sizeof(str_length), fp);
}
}
int main(int argc, char* argv[])
{
FILE* fp;
char* token;
char line[MAX_LINE_LENGTH];
int i, j;
int line_num = 1; // 行号从第一行开始计数
int keyword_index;
unsigned long micro_code;
//
// 处理命令行参数
//
process_argument(argc, argv);
//
// 打开汇编源代码文件
//
fp = fopen(micro_file_name, "r");
if(NULL == fp)
{
printf("无法打开微指令源代码文件 %s\n", micro_file_name);
return 1;
}
////////////////////////////////////////////////////////////////////////////
//// 扫描
version_msg();
printf("\n正在汇编 %s...\n", micro_file_name);
//
// 一次读取一行文本，同时记录所有的代码行信息
//
while(fgets(line, sizeof(line), fp) != NULL)
{
//
// 将一行代码的信息记录到代码行数据库中
//
strcpy(line_database[line_count].line_string, line);
line_database[line_count].line_num = line_num;
line_database[line_count].address = machine_code_address;
//
// 将代码行中的注释剥离
//
line[strcspn(line, ";")] = 0;
//
// 开始解析代码行
//
token = strtok(line, delimit_char);
if(NULL == token)
{
// 如果是空行，不做任何处理
}
else if((keyword_index = match_keyword(token)) != 0)
{
// 根据关键字进行相应的处理
keyword_function_table[keyword_index].parse_function(line_num);
}
else if(is_immediate(token))
{
// 将立即数直接作为微指令
micro_code = get_value_from_immediate(token);
memcpy(&machine_code[machine_code_address], &micro_code, 4);
machine_code_address += 4;
}
else
{
error_msg("无法识别的代码行。", line_num);
}
//
// 补充代码行数据库信息
//
line_database[line_count].machine_code_count = machine_code_address - machine_code_old_address;
machine_code_old_address = machine_code_address;
//
// 记录产生了机器码的代码行数量
//
if(line_database[line_count].machine_code_count != 0)
{
machine_code_line_count++;
}
//
// 增加行号
//
line_count++;
line_num++;
if(line_count == MAX_LINE_COUNT)
{
sprintf(formated_msg, "微指令文件中的代码行过多，最多只能有 %d 行代码。", MAX_LINE_COUNT);
error_msg(formated_msg, -1);
}
}
fclose(fp);
////////////////////////////////////////////////////////////////////////////
//// 产生各种输出文件
//
// 将机器码写入二进制文件
//
if(NULL == target_file_name)
{
target_file_name = "micro.obj";
}
fp = fopen(target_file_name, "wb");
if(NULL == fp)
{
printf("无法打开目标文件 %s\n", target_file_name);
return 1;
}
fwrite(machine_code, 1, machine_code_address, fp);
fclose(fp);
printf("\n生成目标文件 %s\n", target_file_name);
//
// 将代码行数据库中的信息写入列表文件
//
if(list_file_name != NULL)
{
fp = fopen(list_file_name, "w");
if(NULL == fp)
{
printf("无法打开列表文件 %s\n", list_file_name);
return 1;
}
for(i=0; i<line_count; i++)
{
// 行号
fprintf(fp, "%04d ", line_database[i].line_num);
// 地址和机器码
if(line_database[i].machine_code_count > 0)
{
fprintf(fp, "%02X ", line_database[i].address);
for(j=0; j<4; j++)
{
fprintf(fp, "%02X ", machine_code[line_database[i].address + j]);
}
fprintf(fp, " ");
}
else
{
fprintf(fp, " ");
}
// 源代码
fprintf(fp, line_database[i].line_string);
}
fclose(fp);
printf("生成列表文件 %s\n", list_file_name);
}
//
// 将代码行数据库中的信息写入二进制的调试信息文件。
//
// 调试信息的基本格式为：
// 魔数（4字节），固定不可改变
// 版本号（4字节），固定不可改变
// 源代码文件绝对路径字符串长度（4字节）
// 源代码文件绝对路径字符串（不包括字符串结尾的0）
// 列表文件绝对路径字符串长度（4字节）
// 列表文件绝对路径字符串（不包括字符串结尾的0）
//
// 代码行数据库中元素的数量（4字节）
// 代码行数据库中的所有元素
//
// 符号表元素的数量（4字节）
// 符号表中的所有元素
//
if(dbg_file_name != NULL)
{
fp = fopen(dbg_file_name, "wb");
if(NULL == fp)
{
printf("无法打开调试信息文件 %s\n", dbg_file_name);
return 1;
}
// 魔数
fwrite(&dbg_file_magic, 1, sizeof(dbg_file_magic), fp);
// 版本号
fwrite(&dbg_file_version, 1, sizeof(dbg_file_version), fp);
// 源代码文件路径
write_string_to_binary_file(micro_file_name, fp);
// 列表文件路径
write_string_to_binary_file(list_file_name, fp);
// 代码行数据库中的所有元素
fwrite(&machine_code_line_count, 1, sizeof(machine_code_line_count), fp);
for(i=0; i<line_count; i++)
{
// 跳过没有产生机器码的代码行
if(0 == line_database[i].machine_code_count)
{
continue;
}
fwrite(&line_database[i].line_num, 1, sizeof(unsigned long), fp);
fwrite(&line_database[i].address, 1, sizeof(unsigned long), fp);
fwrite(&line_database[i].machine_code_count, 1, sizeof(int), fp);
fwrite(&line_database[i].flag, 1, sizeof(unsigned long), fp);
}
// 没有符号表。但是为了确保调试信息的格式能够被正确读取，必须写入符号表数量为 0
i = 0;
fwrite(&i, 1, sizeof(i), fp);
fclose(fp);
printf("生成调试信息文件 %s\n", dbg_file_name);
}
return 0;
}
microasm.exe 0 → 100644
浏览文件 @ da55accb
添加文件
project.dlproj deleted 100644 → 0
浏览文件 @ f1d5ef01
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<project id="cc76dfb5-389b-4822-9a8a-ef2eed053645" name="project" version="1">
<files>
<file relativepath="README.md"/>
</files>
</project>
ram.asm 0 → 100644
浏览文件 @ da55accb
; ʾ
.text
mov r0, 16
mov a, num
add a, r0
Endless_Loop:
jmp Endless_Loop ;ѭ
.data
num: -1
ram.bat 0 → 100644
浏览文件 @ da55accb
@echo off
dmasm.exe ram.asm -o ram.rxm -l ram.lst -g ram.dbg
pause
ram.dbg 0 → 100644
浏览文件 @ da55accb
添加文件
ram.lst 0 → 100644
浏览文件 @ da55accb
0001 ; ʾ
0002
0003 .text
0004
0005 00 8C 10 mov r0, 16
0006 02 78 07 mov a, num
0007 04 10 add a, r0
0008
0009 Endless_Loop:
0010 05 AC 05 jmp Endless_Loop ;ѭ
0011
0012 .data
0013
0014 07 FF num: -1
ram.rxm 0 → 100644
浏览文件 @ da55accb
添加文件
rom.bat 0 → 100644
浏览文件 @ da55accb
@echo off
microasm.exe rom.masm -o rom.rxm -l rom.lst -g rom.dbg
pause
\ No newline at end of file
rom.dbg 0 → 100644
浏览文件 @ da55accb
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rom.lst 0 → 100644
浏览文件 @ da55accb
0001 ; (C) 2008-2018 北京英真时代科技有限公司。保留所有权利。
0002
0003 ; 所有指令的第一条微指令地址必须是8的倍数
0004 ; 取指微指令，所有指令的第一步均为取指操作，都要执行该条微指令
0005 00 EF 3F F9 FF path [pc], ir
0006
0007 ; 填充空白指令 01-1f
0008 04 FF FF FF FF dup 31, null
0009
0010 ; add a, rx
0011 80 EF FF FA 7F path rx, w
0012 84 EF FF E4 99 path alu_add, a
0013 88 FF FF FF FF inc pc
0014 8C CF FF FF FF reset upc
0015
0016 90 FF FF FF FF dup 4, null
0017
0018 ; add a, [rx]
0019 A0 EF F7 FA FF path rx, mar
0020 A4 EF FB F9 7F path [mar], w
0021 A8 EF FF E4 99 path alu_add, a
0022 AC FF FF FF FF inc pc
0023 B0 CF FF FF FF reset upc
0024
0025 B4 FF FF FF FF dup 3, null
0026
0027 ; add a, symbol
0028 C0 FF FF FF FF inc pc
0029 C4 EF 77 F9 FF path [pc], mar
0030 C8 EF FB F9 7F path [mar], w
0031 CC EF FF E4 99 path alu_add, a
0032 D0 FF FF FF FF inc pc
0033 D4 CF FF FF FF reset upc
0034
0035 D8 FF FF FF FF dup 2, null
0036
0037 ; add a, immediate
0038 E0 FF FF FF FF inc pc
0039 E4 EF 7F F9 7F path [pc], w
0040 E8 EF FF E4 99 path alu_add, a
0041 EC FF FF FF FF inc pc
0042 F0 CF FF FF FF reset upc
0043
0044 F4 FF FF FF FF dup 3, null
0045
0046 ; adc a, rx
0047 100 EF FF FA 7F path rx, w
0048 104 EF FF E4 89 path alu_adc, a
0049 108 FF FF FF FF inc pc
0050 10C CF FF FF FF reset upc
0051
0052 110 FF FF FF FF dup 4, null
0053
0054 ; adc a, [rx]
0055 120 EF F7 FA FF path rx, mar
0056 124 EF FB F9 7F path [mar], w
0057 128 EF FF E4 89 path alu_adc, a
0058 12C FF FF FF FF inc pc
0059 130 CF FF FF FF reset upc
0060
0061 134 FF FF FF FF dup 3, null
0062
0063 ; adc a, symbol
0064 140 FF FF FF FF inc pc
0065 144 EF 77 F9 FF path [pc], mar
0066 148 EF FB F9 7F path [mar], w
0067 14C EF FF E4 89 path alu_adc, a
0068 150 FF FF FF FF inc pc
0069 154 CF FF FF FF reset upc
0070
0071 158 FF FF FF FF dup 2, null
0072
0073 ; adc a, immediate
0074 160 FF FF FF FF inc pc
0075 164 EF 7F F9 7F path [pc], w
0076 168 EF FF E4 89 path alu_adc, a
0077 16C FF FF FF FF inc pc
0078 170 CF FF FF FF reset upc
0079
0080 174 FF FF FF FF dup 3, null
0081
0082 ; sub a, rx
0083 180 EF FF FA 7F path rx, w
0084 184 EF FF E4 86 path alu_sub, a
0085 188 FF FF FF FF inc pc
0086 18C CF FF FF FF reset upc
0087
0088 190 FF FF FF FF dup 4, null
0089
0090 ; sub a, [rx]
0091 1A0 EF F7 FA FF path rx, mar
0092 1A4 EF FB F9 7F path [mar], w
0093 1A8 EF FF E4 86 path alu_sub, a
0094 1AC FF FF FF FF inc pc
0095 1B0 CF FF FF FF reset upc
0096
0097 1B4 FF FF FF FF dup 3, null
0098
0099 ; sub a, symbol
0100 1C0 FF FF FF FF inc pc
0101 1C4 EF 77 F9 FF path [pc], mar
0102 1C8 EF FB F9 7F path [mar], w
0103 1CC EF FF E4 86 path alu_sub, a
0104 1D0 FF FF FF FF inc pc
0105 1D4 CF FF FF FF reset upc
0106
0107 1D8 FF FF FF FF dup 2, null
0108
0109 ; sub a, immediate
0110 1E0 FF FF FF FF inc pc
0111 1E4 EF 7F F9 7F path [pc], w
0112 1E8 EF FF E4 86 path alu_sub, a
0113 1EC FF FF FF FF inc pc
0114 1F0 CF FF FF FF reset upc
0115
0116 1F4 FF FF FF FF dup 3, null
0117
0118 ; sbb a, rx
0119 200 EF FF FA 7F path rx, w
0120 204 EF FF E4 96 path alu_sbb, a
0121 208 FF FF FF FF inc pc
0122 20C CF FF FF FF reset upc
0123
0124 210 FF FF FF FF dup 4, null
0125
0126 ; sbb a, [rx]
0127 220 EF F7 FA FF path rx, mar
0128 224 EF FB F9 7F path [mar], w
0129 228 EF FF E4 96 path alu_sbb, a
0130 22C FF FF FF FF inc pc
0131 230 CF FF FF FF reset upc
0132
0133 234 FF FF FF FF dup 3, null
0134
0135 ; sbb a, symbol
0136 240 FF FF FF FF inc pc
0137 244 EF 77 F9 FF path [pc], mar
0138 248 EF FB F9 7F path [mar], w
0139 24C EF FF E4 96 path alu_sbb, a
0140 250 FF FF FF FF inc pc
0141 254 CF FF FF FF reset upc
0142
0143 258 FF FF FF FF dup 2, null
0144
0145 ; sbb a, immediate
0146 260 FF FF FF FF inc pc
0147 264 EF 7F F9 7F path [pc], w
0148 268 EF FF E4 96 path alu_sbb, a
0149 26C FF FF FF FF inc pc
0150 270 CF FF FF FF reset upc
0151
0152 274 FF FF FF FF dup 3, null
0153
0154 ; and a, rx
0155 280 EF FF FA 7F path rx, w
0156 284 EF FF E4 BB path alu_and a
0157 288 FF FF FF FF inc pc
0158 28C CF FF FF FF reset upc
0159
0160 290 FF FF FF FF dup 4, null
0161
0162 ; and a, [rx]
0163 2A0 EF F7 FA FF path rx, mar
0164 2A4 EF FB F9 7F path [mar], w
0165 2A8 EF FF E4 BB path alu_and, a
0166 2AC FF FF FF FF inc pc
0167 2B0 CF FF FF FF reset upc
0168
0169 2B4 FF FF FF FF dup 3, null
0170
0171 ; and a, symbol
0172 2C0 FF FF FF FF inc pc
0173 2C4 EF 77 F9 FF path [pc], mar
0174 2C8 EF FB F9 7F path [mar], w
0175 2CC EF FF E4 BB path alu_and, a
0176 2D0 FF FF FF FF inc pc
0177 2D4 CF FF FF FF reset upc
0178
0179 2D8 FF FF FF FF dup 2, null
0180
0181 ; and a, immediate
0182 2E0 FF FF FF FF inc pc
0183 2E4 EF 7F F9 7F path [pc], w
0184 2E8 EF FF E4 BB path alu_and, a
0185 2EC FF FF FF FF inc pc
0186 2F0 CF FF FF FF reset upc
0187
0188 2F4 FF FF FF FF dup 3, null
0189
0190 ; or a, rx
0191 300 EF FF FA 7F path rx, w
0192 304 EF FF E4 BE path alu_or a
0193 308 FF FF FF FF inc pc
0194 30C CF FF FF FF reset upc
0195
0196 310 FF FF FF FF dup 4, null
0197
0198 ; or a, [rx]
0199 320 EF F7 FA FF path rx, mar
0200 324 EF FB F9 7F path [mar], w
0201 328 EF FF E4 BE path alu_or, a
0202 32C FF FF FF FF inc pc
0203 330 CF FF FF FF reset upc
0204
0205 334 FF FF FF FF dup 3, null
0206
0207 ; or a, symbol
0208 340 FF FF FF FF inc pc
0209 344 EF 77 F9 FF path [pc], mar
0210 348 EF FB F9 7F path [mar], w
0211 34C EF FF E4 BE path alu_or, a
0212 350 FF FF FF FF inc pc
0213 354 CF FF FF FF reset upc
0214
0215 358 FF FF FF FF dup 2, null
0216
0217 ; or a, immediate
0218 360 FF FF FF FF inc pc
0219 364 EF 7F F9 7F path [pc], w
0220 368 EF FF E4 BE path alu_or, a
0221 36C FF FF FF FF inc pc
0222 370 CF FF FF FF reset upc
0223
0224 374 FF FF FF FF dup 3, null
0225
0226 ; mov a, rx
0227 380 EF FF FA BF path rx, a
0228 384 FF FF FF FF inc pc
0229 388 CF FF FF FF reset upc
0230
0231 38C FF FF FF FF dup 5, null
0232
0233 ; mov a, [rx]
0234 3A0 EF F7 FA FF path rx, mar
0235 3A4 EF FB F9 BF path [mar], a
0236 3A8 FF FF FF FF inc pc
0237 3AC CF FF FF FF reset upc
0238
0239 3B0 FF FF FF FF dup 4, null
0240
0241 ; mov a, symbol
0242 3C0 FF FF FF FF inc pc
0243 3C4 EF 77 F9 FF path [pc], mar
0244 3C8 EF FB F9 BF path [mar], a
0245 3CC FF FF FF FF inc pc
0246 3D0 CF FF FF FF reset upc
0247
0248 3D4 FF FF FF FF dup 3, null
0249
0250 ; mov a, immediate
0251 3E0 FF FF FF FF inc pc
0252 3E4 EF 7F F9 BF path [pc], a
0253 3E8 FF FF FF FF inc pc
0254 3EC CF FF FF FF reset upc
0255
0256 3F0 FF FF FF FF dup 4, null
0257
0258 ; mov rx, a
0259 400 EF FF B4 D0 path a, rx
0260 404 FF FF FF FF inc pc
0261 408 CF FF FF FF reset upc
0262
0263 40C FF FF FF FF dup 5, null
0264
0265 ; mov [rx], a
0266 420 EF F7 FA FF path rx, mar
0267 424 ED FB F4 D0 path a, [mar]
0268 428 FF FF FF FF inc pc
0269 42C CF FF FF FF reset upc
0270
0271 430 FF FF FF FF dup 4, null
0272
0273 ; mov symbol, a
0274 440 FF FF FF FF inc pc
0275 444 EF 77 F9 FF path [pc], mar
0276 448 ED FB F4 D0 path a, [mar]
0277 44C FF FF FF FF inc pc
0278 450 CF FF FF FF reset upc
0279
0280 454 FF FF FF FF dup 3, null
0281
0282 ; mov rx, immediate
0283 460 FF FF FF FF inc pc
0284 464 EF 7F B9 FF path [pc], rx
0285 468 FF FF FF FF inc pc
0286 46C CF FF FF FF reset upc
0287
0288 470 FF FF FF FF dup 4, null
0289
0290 ; read a, symbol
0291 480 FF FF FF FF inc pc
0292 484 EF 77 F9 FF path [pc], mar
0293 488 EF 7F F9 BF path <mar>, a
0294 48C FF FF FF FF inc pc
0295 490 CF FF FF FF reset upc
0296
0297 494 FF FF FF FF dup 3, null
0298
0299 ; write symbol, a
0300 4A0 FF FF FF FF inc pc
0301 4A4 EF 77 F9 FF path [pc], mar
0302 4A8 EC FB F4 D0 path alu_aout, [mar]
0303 4AC FF FF FF FF inc pc
0304 4B0 CF FF FF FF reset upc
0305
0306 4B4 FF FF FF FF dup 3, null
0307
0308 ; lea a, symbol
0309 4C0 FF FF FF FF inc pc
0310 4C4 EF 7F F9 BF path [pc], a
0311 4C8 FF FF FF FF inc pc
0312 4CC CF FF FF FF reset upc
0313
0314 4D0 FF FF FF FF dup 4, null
0315
0316 ;mov st, immediate
0317 4E0 FF FF FF FF inc pc
0318 4E4 EF 7E F9 FF path [pc], st
0319 4E8 FF FF FF FF inc pc
0320 4EC CF FF FF FF reset upc
0321
0322 4F0 FF FF FF FF dup 4, null
0323
0324 ; jc symbol
0325 500 FF FF FF FF inc pc
0326 504 EF 6F F9 FF path [pc], pc
0327 508 CF FF FF FF reset upc
0328
0329 50C FF FF FF FF dup 5, null
0330
0331 ; jz symbol
0332 520 FF FF FF FF inc pc
0333 524 EF 6F F9 FF path [pc], pc
0334 528 CF FF FF FF reset upc
0335
0336 52C FF FF FF FF dup 5, null
0337
0338 ; 填充空白指令
0339 540 FF FF FF FF dup 8, null
0340
0341 ; jmp symbol
0342 560 FF FF FF FF inc pc
0343 564 EF 6F F9 FF path [pc], pc
0344 568 CF FF FF FF reset upc
0345
0346 56C FF FF FF FF dup 5, null
0347
0348 ; in
0349 580 EF FF F0 BF path rin, a
0350 584 FF FF FF FF inc pc
0351 588 CF FF FF FF reset upc
0352
0353 58C FF FF FF FF dup 5, null
0354
0355 ; out
0356 5A0 EE FF F4 D0 path a, rout
0357 5A4 FF FF FF FF inc pc
0358 5A8 CF FF FF FF reset upc
0359
0360 5AC FF FF FF FF dup 5, null
0361
0362 ; int immediate
0363 5C0 FF FF FF FF inc pc
0364 5C4 EB 7F F9 FF path [pc], ia
0365 5C8 EF FF 72 FF path st, cst
0366 5CC EF FF FF FF path st_minus, cst
0367 5D0 EF FE F8 FF path cst, st
0368 5D4 EF F7 F2 FF path st, mar
0369 5D8 FF FF FF FF inc pc
0370 5DC ED FB F3 FF path pc, [mar]
0371 5E0 EF F7 F1 FF path ia, mar
0372 5E4 EF EB F9 FF path [mar], pc
0373 5E8 CF FF FF FF reset upc
0374
0375 5EC FF FF FF FF dup 5, null
0376
0377 ;
0378 600 FF FF FF FF dup 16, null
0379
0380 ; ret
0381 640 EF F7 F2 FF path st, mar
0382 644 EF FF 72 FF path st, cst
0383 648 E7 FF FF FF path st_add, cst
0384 64C EF FE F8 FF path cst, st
0385 650 EF EB F9 FF path [mar], pc
0386 654 CF FF FF FF reset upc
0387
0388 658 FF FF FF FF dup 2, null
0389
0390 ; 填充空白指令
0391 660 FF FF FF FF dup 8, null
0392
0393 ; shr a
0394 680 EF FF D5 90 path alu_shr, a
0395 684 FF FF FF FF inc pc
0396 688 CF FF FF FF reset upc
0397
0398 68C FF FF FF FF dup 5, null
0399
0400 ; shl a
0401 6A0 EF FF D6 90 path alu_shl, a
0402 6A4 FF FF FF FF inc pc
0403 6A8 CF FF FF FF reset upc
0404
0405 6AC FF FF FF FF dup 5, null
0406
0407 ; rcr a
0408 6C0 EF FF E5 90 path alu_rcr, a
0409 6C4 FF FF FF FF inc pc
0410 6C8 CF FF FF FF reset upc
0411
0412 6CC FF FF FF FF dup 5, null
0413
0414 ; rcl a
0415 6E0 EF FF E6 90 path alu_rcl, a
0416 6E4 FF FF FF FF inc pc
0417 6E8 CF FF FF FF reset upc
0418 6EC FF FF FF FF dup 5, null
0419
0420 ; nop
0421 700 FF FF FF FF inc pc
0422 704 CF FF FF FF reset upc
0423
0424 708 FF FF FF FF dup 6, null
0425
0426 ; not a
0427 720 EF FF F4 B0 path alu_not, a
0428 724 FF FF FF FF inc pc
0429 728 CF FF FF FF reset upc
0430
0431 72C FF FF FF FF dup 5, null
0432
0433 ; call symbol
0434 740 FF FF FF FF inc pc
0435 744 EF 7D F9 FF path [pc], asr
0436 748 EF FF 72 FF path st, cst
0437 74C EF FF FF FF path st_minus, cst
0438 750 EF FE F8 FF path cst, st
0439 754 EF F7 F2 FF path st, mar
0440 758 FF FF FF FF inc pc
0441 75C ED FB F3 FF path pc, [mar]
0442 760 EF EF F7 FF path asr, pc
0443 764 CF FF FF FF reset upc
0444
0445 768 FF FF FF FF dup 6, null
0446
0447 ; 填充空白指令
0448 780 FF FF FF FF dup 16, null
0449
0450 ; iret
0451 7C0 EF F7 F2 FF path st, mar
0452 7C4 EF FF 72 FF path st, cst
0453 7C8 E7 FF FF FF path st_add, cst
0454 7CC EF FE F8 FF path cst, st
0455 7D0 EF EB F9 FF path [mar], pc
0456 7D4 CF FF FF FF reset upc
0457
0458 7D8 FF FF FF FF dup 2, null
0459
0460
0461
rom.masm 0 → 100644
浏览文件 @ da55accb
; (C) 2008-2018 北京英真时代科技有限公司。保留所有权利。
; 所有指令的第一条微指令地址必须是8的倍数
; 取指微指令，所有指令的第一步均为取指操作，都要执行该条微指令
path [pc], ir
; 填充空白指令 01-1f
dup 31, null
; add a, rx
path rx, w
path alu_add, a
inc pc
reset upc
dup 4, null
; add a, [rx]
path rx, mar
path [mar], w
path alu_add, a
inc pc
reset upc
dup 3, null
; add a, symbol
inc pc
path [pc], mar
path [mar], w
path alu_add, a
inc pc
reset upc
dup 2, null
; add a, immediate
inc pc
path [pc], w
path alu_add, a
inc pc
reset upc
dup 3, null
; adc a, rx
path rx, w
path alu_adc, a
inc pc
reset upc
dup 4, null
; adc a, [rx]
path rx, mar
path [mar], w
path alu_adc, a
inc pc
reset upc
dup 3, null
; adc a, symbol
inc pc
path [pc], mar
path [mar], w
path alu_adc, a
inc pc
reset upc
dup 2, null
; adc a, immediate
inc pc
path [pc], w
path alu_adc, a
inc pc
reset upc
dup 3, null
; sub a, rx
path rx, w
path alu_sub, a
inc pc
reset upc
dup 4, null
; sub a, [rx]
path rx, mar
path [mar], w
path alu_sub, a
inc pc
reset upc
dup 3, null
; sub a, symbol
inc pc
path [pc], mar
path [mar], w
path alu_sub, a
inc pc
reset upc
dup 2, null
; sub a, immediate
inc pc
path [pc], w
path alu_sub, a
inc pc
reset upc
dup 3, null
; sbb a, rx
path rx, w
path alu_sbb, a
inc pc
reset upc
dup 4, null
; sbb a, [rx]
path rx, mar
path [mar], w
path alu_sbb, a
inc pc
reset upc
dup 3, null
; sbb a, symbol
inc pc
path [pc], mar
path [mar], w
path alu_sbb, a
inc pc
reset upc
dup 2, null
; sbb a, immediate
inc pc
path [pc], w
path alu_sbb, a
inc pc
reset upc
dup 3, null
; and a, rx
path rx, w
path alu_and a
inc pc
reset upc
dup 4, null
; and a, [rx]
path rx, mar
path [mar], w
path alu_and, a
inc pc
reset upc
dup 3, null
; and a, symbol
inc pc
path [pc], mar
path [mar], w
path alu_and, a
inc pc
reset upc
dup 2, null
; and a, immediate
inc pc
path [pc], w
path alu_and, a
inc pc
reset upc
dup 3, null
; or a, rx
path rx, w
path alu_or a
inc pc
reset upc
dup 4, null
; or a, [rx]
path rx, mar
path [mar], w
path alu_or, a
inc pc
reset upc
dup 3, null
; or a, symbol
inc pc
path [pc], mar
path [mar], w
path alu_or, a
inc pc
reset upc
dup 2, null
; or a, immediate
inc pc
path [pc], w
path alu_or, a
inc pc
reset upc
dup 3, null
; mov a, rx
path rx, a
inc pc
reset upc
dup 5, null
; mov a, [rx]
path rx, mar
path [mar], a
inc pc
reset upc
dup 4, null
; mov a, symbol
inc pc
path [pc], mar
path [mar], a
inc pc
reset upc
dup 3, null
; mov a, immediate
inc pc
path [pc], a
inc pc
reset upc
dup 4, null
; mov rx, a
path a, rx
inc pc
reset upc
dup 5, null
; mov [rx], a
path rx, mar
path a, [mar]
inc pc
reset upc
dup 4, null
; mov symbol, a
inc pc
path [pc], mar
path a, [mar]
inc pc
reset upc
dup 3, null
; mov rx, immediate
inc pc
path [pc], rx
inc pc
reset upc
dup 4, null
; read a, symbol
inc pc
path [pc], mar
path <mar>, a
inc pc
reset upc
dup 3, null
; write symbol, a
inc pc
path [pc], mar
path alu_aout, [mar]
inc pc
reset upc
dup 3, null
; lea a, symbol
inc pc
path [pc], a
inc pc
reset upc
dup 4, null
;mov st, immediate
inc pc
path [pc], st
inc pc
reset upc
dup 4, null
; jc symbol
inc pc
path [pc], pc
reset upc
dup 5, null
; jz symbol
inc pc
path [pc], pc
reset upc
dup 5, null
; 填充空白指令
dup 8, null
; jmp symbol
inc pc
path [pc], pc
reset upc
dup 5, null
; in
path rin, a
inc pc
reset upc
dup 5, null
; out
path a, rout
inc pc
reset upc
dup 5, null
; int immediate
inc pc
path [pc], ia
path st, cst
path st_minus, cst
path cst, st
path st, mar
inc pc
path pc, [mar]
path ia, mar
path [mar], pc
reset upc
dup 5, null
;
dup 16, null
; ret
path st, mar
path st, cst
path st_add, cst
path cst, st
path [mar], pc
reset upc
dup 2, null
; 填充空白指令
dup 8, null
; shr a
path alu_shr, a
inc pc
reset upc
dup 5, null
; shl a
path alu_shl, a
inc pc
reset upc
dup 5, null
; rcr a
path alu_rcr, a
inc pc
reset upc
dup 5, null
; rcl a
path alu_rcl, a
inc pc
reset upc
dup 5, null
; nop
inc pc
reset upc
dup 6, null
; not a
path alu_not, a
inc pc
reset upc
dup 5, null
; call symbol
inc pc
path [pc], asr
path st, cst
path st_minus, cst
path cst, st
path st, mar
inc pc
path pc, [mar]
path asr, pc
reset upc
dup 6, null
; 填充空白指令
dup 16, null
; iret
path st, mar
path st, cst
path st_add, cst
path cst, st
path [mar], pc
reset upc
dup 2, null
rom.rxm 0 → 100644
浏览文件 @ da55accb
添加文件
uPC_NEXT.dlsche 0 → 100644
浏览文件 @ da55accb
添加文件
uPC_NEXT.dlsche.svg 0 → 100644
浏览文件 @ da55accb
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<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="1431">7</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1572" y="1460">M</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="1461">8</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1699" x2="1739" y1="1240" y2="1240"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1240">^G</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1240">17</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1699" x2="1739" y1="1210" y2="1210"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1210">^P</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1210">15</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1689" x2="1739" y1="1150" y2="1150"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1150">AEQB</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1150">14</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1689" x2="1739" y1="1120" y2="1120"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1120">CN4</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1120">16</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1699" x2="1739" y1="1060" y2="1060"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1060">^F3</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1060">13</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1699" x2="1739" y1="1030" y2="1030"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1030">^F2</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1030">11</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1699" x2="1739" y1="1000" y2="1000"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1000">^F1</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1000">10</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1699" x2="1739" y1="970" y2="970"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="970">^F0</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1717" y="969">9</text>
<circle cx="1534" cy="1210" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1533" cy="1030" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1533" cy="1120" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1533" cy="1060" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1533" cy="999" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1534" cy="1180" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1534" cy="970" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1533" cy="1150" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1693" cy="971" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1694" cy="1001" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1694" cy="1030" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1693" cy="1060" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1693" cy="1210" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1693" cy="1241" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<rect fill="#ffffff" fill-opacity="0.5" height="550" stroke="#000000" stroke-width="5" width="150" x="1539" y="930"/>
<text alignment-baseline="after-edge" fill="#000000" font-family="Arial" font-size="25" font-weight="700" text-anchor="start" x="1606" y="910">U1</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Arial" font-size="25" font-weight="700" text-anchor="start" x="1549" y="1526">74LS181</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="1670" y2="1670"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="1670">^A0</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1508" y="1670">2</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="1700" y2="1700"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="1700">^A1</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1521" y="1700">23</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="1730" y2="1730"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="1730">^A2</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1521" y="1730">21</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="1760" y2="1760"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="1760">^A3</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1521" y="1760">19</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="1820" y2="1820"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="1820">^B0</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1508" y="1818">1</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="1850" y2="1850"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="1850">^B1</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1522" y="1849">22</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="1880" y2="1880"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="1880">^B2</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1522" y="1879">20</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="1910" y2="1910"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="1910">^B3</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1522" y="1909">18</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1539" x2="1489" y1="1980" y2="1980"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="1980">S0</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="1978">6</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1539" x2="1489" y1="2010" y2="2010"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="2010">S1</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="2009">5</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1539" x2="1489" y1="2040" y2="2040"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="2040">S2</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="2039">4</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1539" x2="1489" y1="2070" y2="2070"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="2070">S3</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="2069">3</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1539" x2="1489" y1="2130" y2="2130"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="2130">CN</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="2131">7</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1539" x2="1489" y1="2160" y2="2160"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1572" y="2160">M</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="2161">8</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1699" x2="1739" y1="1940" y2="1940"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1940">^G</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1940">17</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1699" x2="1739" y1="1910" y2="1910"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1910">^P</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1910">15</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1689" x2="1739" y1="1850" y2="1850"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1850">AEQB</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1850">14</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1689" x2="1739" y1="1820" y2="1820"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1820">CN4</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1820">16</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1699" x2="1739" y1="1760" y2="1760"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1760">^F3</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1760">13</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1699" x2="1739" y1="1730" y2="1730"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1730">^F2</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1730">11</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1699" x2="1739" y1="1700" y2="1700"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1700">^F1</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="1700">10</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1699" x2="1739" y1="1670" y2="1670"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="1670">^F0</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1717" y="1669">9</text>
<circle cx="1534" cy="1910" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1533" cy="1730" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1533" cy="1820" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1533" cy="1760" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1533" cy="1699" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1534" cy="1880" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1534" cy="1670" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1533" cy="1850" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1693" cy="1671" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1694" cy="1701" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1694" cy="1730" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1693" cy="1760" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1693" cy="1910" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<circle cx="1693" cy="1941" fill="#ffffff" fill-opacity="0.5" r="4" stroke="#000000" stroke-width="5"/>
<rect fill="#ffffff" fill-opacity="0.5" height="550" stroke="#000000" stroke-width="5" width="150" x="1539" y="1630"/>
<text alignment-baseline="after-edge" fill="#000000" font-family="Arial" font-size="25" font-weight="700" text-anchor="start" x="1606" y="1610">U2</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Arial" font-size="25" font-weight="700" text-anchor="start" x="1549" y="2226">74LS181</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="2410" y2="2410"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="2410">^A0</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1508" y="2410">2</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="2440" y2="2440"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="2440">^A1</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1521" y="2440">23</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="2470" y2="2470"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="2470">^A2</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1521" y="2470">21</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="2500" y2="2500"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="2500">^A3</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1521" y="2500">19</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="2560" y2="2560"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="2560">^B0</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1508" y="2558">1</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="2590" y2="2590"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="2590">^B1</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1522" y="2589">22</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="2620" y2="2620"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="2620">^B2</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1522" y="2619">20</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1529" x2="1489" y1="2650" y2="2650"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="2650">^B3</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1522" y="2649">18</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1539" x2="1489" y1="2720" y2="2720"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="2720">S0</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="2718">6</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1539" x2="1489" y1="2750" y2="2750"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="2750">S1</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="2749">5</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1539" x2="1489" y1="2780" y2="2780"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="2780">S2</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="2779">4</text>
<line stroke="#000000" stroke-linecap="round" stroke-width="5" x1="1539" x2="1489" y1="2810" y2="2810"/>
<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="2810">S3</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="2809">3</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="2870">CN</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1572" y="2900">M</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="2680">^G</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="2650">^P</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="2590">AEQB</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="2560">CN4</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="2440">^F1</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="2410">^F0</text>
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<text alignment-baseline="after-edge" fill="#000000" font-family="Arial" font-size="25" font-weight="700" text-anchor="start" x="1606" y="2350">U3</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Arial" font-size="25" font-weight="700" text-anchor="start" x="1549" y="2966">74LS181</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="3200">^A0</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="3230">^A1</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1521" y="3230">23</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="3260">^A2</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1521" y="3260">21</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="3290">^A3</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1521" y="3290">19</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="3350">^B0</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1508" y="3348">1</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="3380">^B1</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1522" y="3379">22</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="3410">^B2</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1522" y="3409">20</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1592" y="3440">^B3</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1522" y="3439">18</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="3510">S0</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="3508">6</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="3540">S1</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="3539">5</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="3570">S2</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="3569">4</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="3600">S3</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="3599">3</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1582" y="3660">CN</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="3661">7</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1572" y="3690">M</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="end" x="1509" y="3691">8</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="3470">^G</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="3470">17</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="3440">^P</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="3440">15</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="3380">AEQB</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="3380">14</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="3350">CN4</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="3350">16</text>
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<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="3290">13</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="3260">^F2</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="3260">11</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="3230">^F1</text>
<text alignment-baseline="after-edge" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="start" x="1704" y="3230">10</text>
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<text alignment-baseline="central" fill="#000000" font-family="Courier New" font-size="17" font-weight="400" text-anchor="middle" x="1656" y="3200">^F0</text>
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