*/
WORD get_val_adr_x(WORD adr, WORD oprx);
+/**
+ * @brief 汎用レジスタの番号からレジスタを表す文字列を返す
+ *
+ * @return 汎用レジスタを表す文字列。「GR0」「GR1」・・・「GR7」のいずれか
+ *
+ * @param word レジスタ番号[0-7]を表すWORD値
+ */
+char *grstr(WORD word);
+
+
/**
* @brief 実行エラーの定義
*/
};
/**
- * @brief 実行モード: trace, logical, dump
+ * @brief 実行モード: trace, logical, dump, debugger
*/
-EXECMODE execmode = {false, false, false};
+EXECMODE execmode = {false, false, false, false};
char *pr2str(WORD pr)
{
void svcin()
{
int i;
- char *buffer = malloc_chk(INSIZE + 1, "svcin.buffer");
+ char *buf = malloc_chk(INSIZE + 1, "svcin.buf");
- if(fgets(buffer, INSIZE, stdin) == NULL) {
+ if(fgets(buf, INSIZE, stdin) == NULL) {
sys->memory[sys->cpu->gr[1]] = sys->memory[sys->cpu->gr[2]] = 0x0;
return;
}
for(i = 0; i < INSIZE; i++) {
- if(*(buffer + i) == '\0' || *(buffer + i) == '\n') {
+ if(*(buf + i) == '\0' || *(buf + i) == '\n') {
--i;
break;
}
setcerr(208, ""); /* SVC input - memory overflow */
break;
}
- sys->memory[sys->cpu->gr[1]+i] = *(buffer + i);
+ sys->memory[sys->cpu->gr[1]+i] = *(buf + i);
}
sys->memory[sys->cpu->gr[2]] = i + 1;
- FREE(buffer);
+ FREE(buf);
}
void svcout()
sys->cpu->pr += 2;
}
+char *grstr(WORD word)
+{
+ assert(word <= 7);
+ char *str = malloc_chk(3 + 1, "grstr.str");
+ sprintf(str, "GR%d", word);
+ return str;
+}
+
+void debugger()
+{
+ char *buf = malloc_chk(DBINSIZE + 1, "debugger.buf");
+ for( ; ;) {
+ fprintf(stdout, "COMET II (Type ? for help) > ");
+ fgets(buf, DBINSIZE, stdin);
+ if(*buf == 'r') {
+ execmode.debugger = false;
+ break;
+ } else if(*buf == 's') {
+ break;
+ } else if(*buf == 't') {
+ fprintf(stdout, "#%04X: Register::::\n", sys->cpu->pr);
+ dspregister();
+ } else if(*buf == 'd') {
+ dumpmemory();
+ } else if(*buf == '?') {
+ fprintf(stdout, "r -- Continue running your program.\n");
+ fprintf(stdout, "s -- Continue running your program until next interaction.\n");
+ fprintf(stdout, "t -- Display CPU register.\n");
+ fprintf(stdout, "d -- Display memory dump.\n");
+ break;
+ }
+ }
+}
+
void exec()
{
clock_t clock_begin, clock_end;
}
fprintf(stdout, "\n");
}
+ /* デバッガーモードの場合、デバッガーを起動 */
+ if(execmode.debugger == true) {
+ debugger();
+ }
/* プログラムレジスタをチェック */
if(sys->cpu->pr >= sys->memsize) {
setcerr(201, s = pr2str(sys->cpu->pr)); /* Program Register (PR) - memory overflow */
fprintf(stderr, "Execute error - %d: %s\n", cerr->num, cerr->msg);
}
}
+
+bool disassemble_file(const char *file)
+{
+ bool stat = true;
+ FILE *fp;
+ WORD i = 0, w, cmd, x, adr;
+ CMDTYPE cmdtype = 0;
+ char *cmdname, *g, *g1, *g2;
+
+ assert(file != NULL);
+ if((fp = fopen(file, "rb")) == NULL) {
+ perror(file);
+ return false;
+ }
+
+ create_code_cmdtype(); /* 命令のコードとタイプがキーのハッシュ表を作成 */
+
+ fprintf(stdout, "MAIN\tSTART\n");
+ for(; ;) {
+ fread(&w, sizeof(WORD), 1, fp);
+ if(feof(fp)) {
+ break;
+ }
+ cmd = w & 0xFF00;
+ cmdname = getcmdname(cmd);
+ cmdtype = getcmdtype(cmd);
+ if(cmd == 0xFF00 || (w != 0 && cmd == 0x0000)) {
+ fprintf(stdout, "\tDC\t%d\t\t\t\t; #%04X: #%04X :: ", w, i++, w);
+ print_dumpword(w, true);
+ } else if(cmdtype == R_ADR_X || cmdtype == ADR_X) {
+ fread(&adr, sizeof(WORD), 1, fp);
+ fprintf(stdout, "\t%s\t", cmdname);
+ if(cmdtype == R_ADR_X) {
+ g = grstr((w & 0x00F0) >> 4);
+ fprintf(stdout, "%s,", g);
+ FREE(g);
+ }
+ fprintf(stdout, "#%04X", adr);
+ if((x = w & 0x000F) != 0) {
+ fprintf(stdout, ",%s", g = grstr(x));
+ FREE(g);
+ }
+ fprintf(stdout, "\t\t\t\t; #%04X: #%04X #%04X", i, w, adr);
+ i += 2;
+ } else {
+ fprintf(stdout, "\t%s", cmdname);
+ if(cmdtype == R1_R2) {
+ g1 = grstr((w & 0x00F0) >> 4);
+ g2 = grstr(w & 0x000F);
+ fprintf(stdout, "\t%s,%s", g1, g2);
+ FREE(g1);
+ FREE(g2);
+ } else if(cmdtype == R_) {
+ g = grstr((w & 0x00F0) >> 4);
+ fprintf(stdout, "\t%s", g);
+ FREE(g);
+ }
+ fprintf(stdout, "\t\t\t\t; #%04X: #%04X", i++, w);
+ }
+ fprintf(stdout, "\n");
+ }
+ fprintf(stdout, "\tEND\n");
+ free_code_cmdtype();
+ fclose(fp);
+ return stat;
+}