*/
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, step
+ * @brief 実行モード: trace, logical, dump, monitor, step
*/
-EXECMODE execmode = {false, false, false, false};
+EXECMODE execmode = {false, false, false, false, false};
char *pr2str(WORD pr)
{
addcerrlist(ARRAYSIZE(cerr_exec), cerr_exec);
}
-bool loadassemble(const char *file)
+WORD loadassemble(const char *file, WORD start)
{
FILE *fp;
- bool stat = true;
+ WORD end;
assert(file != NULL);
if((fp = fopen(file, "rb")) == NULL) {
perror(file);
- return false;
+ return 0;
}
- execptr->end = execptr->start +
- fread(sys->memory, sizeof(WORD), sys->memsize - execptr->start, fp);
- if(execptr->end == sys->memsize) {
+ end = start + fread(sys->memory + start, sizeof(WORD), sys->memsize - start, fp);
+ if(end == sys->memsize) {
setcerr(210, file); /* load - memory overflow */
fprintf(stderr, "Load error - %d: %s\n", cerr->num, cerr->msg);
- stat = false;
}
fclose(fp);
- return stat;
+ return end;
}
void nop()
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 exec()
{
clock_t clock_begin, clock_end;
void (*cmdptr)();
char *s;
+ const char *monmsg = "COMET II machine code monitor. Type ? for help.\n";
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 */
if(execmode.trace == true) {
}
fprintf(stdout, "\n");
}
- /* デバッガーモードの場合、デバッガーを起動 */
- if(execmode.step == true || getbps(sys->cpu->pr) == true) {
+ /* ステップモードまたはブレークポイントの場合、モニターを起動 */
+ if(
+ (execmode.monitor == true && sys->cpu->pr == execptr->start) ||
+ execmode.step == true || getbps(sys->cpu->pr) == true)
+ {
+ if(sys->cpu->pr == execptr->start) {
+ fprintf(stdout, "%s", monmsg);
+ }
monitor();
}
/* プログラムレジスタをチェック */
if(cerr->num > 0) {
goto execfin;
}
- /* 終了フラグがtrueの場合は、正常終了 */
+ /* 終了フラグがtrueの場合は、モニターまたは正常終了 */
if(execptr->stop == true) {
- break;
+ if(execmode.monitor == true) {
+ fprintf(stdout, "Return to top.\n");
+ monitor();
+ } else {
+ break;
+ }
}
/* クロック周波数の設定 */
do {
fprintf(stderr, "Execute error - %d: %s\n", cerr->num, cerr->msg);
}
}
-
-void disassemble_cmd_adr_x(CMDTYPE cmdtype, const char *cmdname, WORD word, WORD adr, WORD loc)
-{
- WORD x;
- char *g;
- fprintf(stdout, "\t%s\t", cmdname);
- if(cmdtype == R_ADR_X) {
- fprintf(stdout, "%s,", g = grstr((word & 0x00F0) >> 4));
- FREE(g);
- }
- fprintf(stdout, "#%04X", adr);
- if((x = (word & 0x000F)) != 0) {
- fprintf(stdout, ",%s", g = grstr(x));
- FREE(g);
- }
- fprintf(stdout, "\t\t\t\t; #%04X: #%04X #%04X", loc, word, adr);
-}
-
-void disassemble_cmd_r(CMDTYPE cmdtype, const char *cmdname, WORD word, WORD loc)
-{
- char *g, *g1, *g2;
- fprintf(stdout, "\t%s", cmdname);
- if(cmdtype == R1_R2) {
- g1 = grstr((word & 0x00F0) >> 4);
- g2 = grstr(word & 0x000F);
- fprintf(stdout, "\t%s,%s", g1, g2);
- FREE(g1);
- FREE(g2);
- } else if(cmdtype == R_) {
- g = grstr((word & 0x00F0) >> 4);
- fprintf(stdout, "\t%s", g);
- FREE(g);
- }
- fprintf(stdout, "\t\t\t\t; #%04X: #%04X", loc, word);
-}
-
-bool disassemble_file(const char *file)
-{
- bool stat = true;
- FILE *fp;
- WORD i = 0, w, cmd, adr;
- CMDTYPE cmdtype = 0;
- char *cmdname;
-
- 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); !feof(fp); fread(&w, sizeof(WORD), 1, fp)) {
- cmd = w & 0xFF00;
- cmdname = getcmdname(cmd);
- cmdtype = getcmdtype(cmd);
- if(cmd == 0xFF00 || (w != 0 && cmd == 0)) {
- 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);
- disassemble_cmd_adr_x(cmdtype, cmdname, w, adr, i);
- i += 2;
- } else {
- disassemble_cmd_r(cmdtype, cmdname, w, i++);
- }
- fprintf(stdout, "\n");
- }
- fprintf(stdout, "\tEND\n");
- free_code_cmdtype();
- fclose(fp);
- return stat;
-}
-
-void disassemble_memory(WORD start, WORD end)
-{
- WORD i, w, cmd, adr;
- CMDTYPE cmdtype = 0;
- char *cmdname;
-
- for(i = start; i <= end; i++) {
- w = sys->memory[i];
- cmd = w & 0xFF00;
- cmdname = getcmdname(cmd);
- cmdtype = getcmdtype(cmd);
- if(cmd == 0xFF00 || (w != 0 && cmd == 0)) {
- 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) {
- adr = sys->memory[i+1];
- disassemble_cmd_adr_x(cmdtype, cmdname, w, adr, i++);
- } else {
- disassemble_cmd_r(cmdtype, cmdname, w, i);
- }
- fprintf(stdout, "\n");
- }
-}
projects / YACASL2.git / blobdiff