#include?
#include?
#include?
#include?
#define?MAX_LEN?200
#define?INSTRS_COUNT?（sizeof（g_instrs_name）/sizeof（g_instrs_name[0]））
#define?INSTR_SYM?{“HLT““JMP““CJMP““OJMP““CALL““RET““PUSH““POP“\
“LOADB““LOADW““STOREB““STOREW““LOADI““NOP““IN““OUT““ADD““ADDI“\
????“SUB““SUBI““MUL““DIV““AND““OR““NOR““NOTB““SAL““SAR““EQU“\
????“LT““LTE““NOTC“}
typedef?struct?var
{
????char?var_name[10];
????int?pianyi1;
????int?changdu;
????unsigned?char?*length;
????struct?var?*next;
}VAR;??//用于表示變量的偏移量，變量的類型，變量所需要的內(nèi)存大小
typedef?struct?label
{
????char?label_name[10];
????int?pianyi2;
????struct?label?*next;
}LABEL;?????//用于表示標(biāo)號(hào)的名字，及標(biāo)號(hào)的地址

VAR?*var_head=NULL;
LABEL?*label_head=NULL;

const?char?*g_instrs_name[]=INSTR_SYM;?????????/*定義存放指令記號(hào)的數(shù)組*/
const?char?instr_format[33]=“12222133444451667575777778778881“;/*定義存放指令格式的數(shù)組，下標(biāo)對(duì)應(yīng)指令碼，7個(gè)數(shù)字字符代表七種指令格式*/

int?GetInstrCode（const?char?*op_sym）;??????????/*由指令助記符得到指令代碼*/
unsigned?long?TransToCode（char?*instr_lineint?instr_num）;/*將指令翻譯成目標(biāo)代碼，instr_num指令操作碼*/
int?GetRegNum（char?*instr_linechar?*reg_name）;/*由寄存器名對(duì)應(yīng)到編碼*/
void?CreatList（VAR**vhdLABEL**lhdFILE*pfIn）;/*創(chuàng)建鏈表*/
int?shuzu（char[10]）;/*通過(guò)含有[]的字符串取出數(shù)組的大小*/
int?fuzhi1（char?s[MAX_LEN]unsigned?char?*pc）;
int?fuzhi2（char?s[MAX_LEN]unsigned?char?*pc）;/*數(shù)組元素賦值*/
LABEL*?Findlabel（LABEL*label_hdchar?s[20]）;
VAR*?Findvar（VAR*var_hdchar?s[20]）;

int?main（int?argcchar?*?*argv）
{
????char?a_line[MAX_LEN];???//用于存儲(chǔ)一行的字符
????char?op_sym[8];?????????//用于存儲(chǔ)助記符用于存儲(chǔ)變量名字
????int??op_num;????????????//用于表示助記符對(duì)應(yīng)的操作碼
????int?ilength_all=0;??????????????????//pianyi用于標(biāo)記偏移量
????char?*pcPos;????????????//用于保存注釋符的位置
????VAR?*pv=NULL;
????unsigned?long?addr=0ul*shuju;
????unsigned?char?*all;
????FILE?*pfIn*pfOut;??????//源文件，目標(biāo)文件

????int?n;
????if（argc<3）
????{???????????????????????????????/*檢查命令行參數(shù)的數(shù)目*/
????????printf（“ERROR:no?enough?command?line?arguments!\n“）;
????????return?0;
????}
????if（（pfIn=fopen（argv[1]“r“））==NULL）{??????/*打開(kāi)源代碼文件*/
????????printf（“ERROR:cannot?open?file?%s?for?reading!\n“argv[1]）;
????????return?0;
????}
????if（（pfOut=fopen（argv[2]“w“））==NULL）{?????/*打開(kāi)目標(biāo)代碼文件*/
????????printf（“ERROR:cannot?open?file?%s?for?writing!\n“argv[2]）;
????????return?0;
????}
????CreatList（&var_head&label_headpfIn）;/*第一次循環(huán)處理偽指令和標(biāo)號(hào)，創(chuàng)建鏈表*/
????pv=（VAR*）malloc（sizeof（VAR））;
????pv=var_head;
????pfIn=fopen（argv[1]“r“）;
????while（!feof（pfIn））//第二次循環(huán)處理指令
????{

????????fgets（a_lineMAX_LENpfIn）;
????????if（（pcPos=strchr（a_line‘#‘））!=NULL）
????????{
????????????*pcPos=‘\0‘;
????????}
????????if（（pcPos=strchr（a_line‘\n‘））!=NULL）
????????{
????????????*pcPos=‘\0‘;
????????}
????????if（（pcPos=strstr（a_line“WORD“））!=NULL）
????????{
????????????continue;
????????}
????????else?if（（pcPos=strstr（a_line“BYTE“））!=NULL）
????????{
????????????continue;
????????}
????????else?if（（pcPos=strchr（a_line‘:‘））!=NULL）
????????{
???????????

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件????????1041??2014-03-16?21:37??copy.txt
?????文件????????9733??2014-03-16?21:37??queen.txt
?????文件?????????199??2014-03-30?18:45??readme.txt
?????目錄???????????0??2014-03-30?18:41??sas\
?????目錄???????????0??2014-03-16?21:37??sas\bin\
?????目錄???????????0??2014-03-30?18:41??sas\bin\Debug\
?????文件???????41970??2014-03-16?21:37??sas\bin\Debug\sas.exe
?????文件?????????168??2014-03-16?21:37??sas\copy.dat
?????文件????????1041??2014-03-16?21:37??sas\copy.txt
?????文件???????15429??2014-03-16?21:37??sas\main.c
?????目錄???????????0??2014-03-30?18:39??sas\obj\
?????目錄???????????0??2014-03-30?18:41??sas\obj\Debug\
?????文件???????14381??2014-03-30?18:39??sas\obj\Debug\main.o
?????文件????????9733??2014-03-16?21:37??sas\queen.txt
?????文件????????1111??2014-03-17?00:34??sas\sas.cbp
?????文件?????????445??2014-03-16?21:40??sas\sas.depend
?????文件?????????321??2014-03-17?00:34??sas\sas.layout
?????目錄???????????0??2014-03-30?18:41??ssim\
?????目錄???????????0??2014-03-16?21:37??ssim\bin\
?????目錄???????????0??2014-03-30?18:41??ssim\bin\Debug\
?????文件???????37773??2014-03-16?21:37??ssim\bin\Debug\ssim.exe
?????文件?????????360??2014-03-16?21:37??ssim\copy.dat
?????文件????????8287??2014-03-16?21:37??ssim\main.c
?????目錄???????????0??2014-03-16?21:37??ssim\obj\
?????目錄???????????0??2014-03-30?18:41??ssim\obj\Debug\
?????文件???????16666??2014-03-16?21:37??ssim\obj\Debug\main.o
?????文件????????1872??2014-03-16?21:37??ssim\queen.dat
?????文件????????1088??2014-03-16?21:37??ssim\ssim.cbp
?????文件?????????428??2014-03-16?21:37??ssim\ssim.depend
?????文件?????????241??2014-03-16?21:37??ssim\ssim.layout