11 * アセンブルモード: src, label, onlylabel, asdetail, onlyassemble
13 ASMODE asmode = {false, false, false, false, false};
16 * アセンブルのプロパティ: ptr, lptr, *prog
23 static CERR cerr_assemble[] = {
24 { 101, "label already defined" },
25 { 102, "label table is full" },
26 { 103, "label not found" },
27 { 106, "operand mismatch in assemble command" },
28 { 107, "no label in START" },
29 { 108, "not command of operand \"r\"" },
30 { 109, "not command of operand \"r1,r2\"" },
31 { 110, "not command of operand \"r,adr[,x]\"" },
32 { 111, "not command of operand \"adr[,x]\"" },
33 { 112, "not command of no operand" },
34 { 113, "operand too many in COMET II command" },
35 { 119, "out of COMET II memory" },
36 { 120, "GR0 in operand x" },
37 { 122, "cannot create hash table" },
38 { 124, "more than one character in literal" },
39 { 125, "not GR in operand x" },
42 WORD getadr(const char *prog, const char *str, PASS pass);
44 WORD getgr(const char *str, bool is_x);
46 WORD getliteral(const char *str, PASS pass);
48 bool assemblecmd(const CMDLINE *cmdl, PASS pass);
50 bool macrocmd(const CMDLINE *cmdl, PASS pass);
52 bool writeIN(const char *ibuf, const char *len, PASS pass);
54 bool writeOUT(const char *obuf, const char *len, PASS pass);
56 bool writeRPUSH(PASS pass);
58 bool writeRPOP(PASS pass);
60 bool cometcmd(const CMDLINE *cmdl, PASS pass);
62 bool writememory(WORD word, WORD adr, PASS pass);
64 void writestr(const char *str, bool literal, PASS pass);
66 void writeDC(const char *str, PASS pass);
68 bool assembleline(const CMDLINE *cmdl, PASS pass);
70 void printline(FILE *stream, const char *filename, int lineno, char *line);
73 * 汎用レジスタを表す文字列「GR[0-7]」から、レジスタ番号[0-7]をWORD値で返す
74 * 文字列が汎用レジスタを表さない場合は、0xFFFFを返す
75 * is_xがtrueの場合は指標レジスタ。GR0が指定された場合は、COMET IIの仕様によりエラー発生
77 WORD getgr(const char *str, bool is_x)
81 /* 「GR[0-7]」以外の文字列では、0xFFFFを返して終了 */
82 if(!(strlen(str) == 3 && strncmp(str, "GR", 2) == 0 &&
83 (*(str+2) >= '0' && *(str+2) <= '0' + (GRSIZE - 1))))
87 r = (WORD)(*(str+2) - '0');
88 /* GR0は指標レジスタとして用いることができない */
89 if(is_x == true && r == 0x0) {
90 setcerr(120, NULL); /* GR0 in operand x */
97 * 定数の前に等号(=)をつけて記述されるリテラルを返す
98 * リテラルには、10進定数/16進定数/文字定数が含まれる
100 WORD getliteral(const char *str, PASS pass)
102 WORD adr = asprop->lptr;
104 if(*(++str) == '\'') { /* 文字定数 */
105 writestr(str, true, pass);
107 writememory(nh2word(str), (asprop->lptr)++, pass);
114 * 実行に成功した場合はtrue、それ以外の場合はfalseを返す
116 bool assemblecmd(const CMDLINE *cmdl, PASS pass)
122 { START, 0, 1, "START" },
123 { END, 0, 0, "END" },
124 { DC, 1, OPDSIZE, "DC" },
130 if(strcmp(cmdl->cmd, ascmd[i].cmd) == 0) {
131 if(cmdl->opd->opdc < ascmd[i].opdc_min || cmdl->opd->opdc > ascmd[i].opdc_max) {
132 setcerr(106, NULL); /* operand count mismatch */
135 cmdid = ascmd[i].cmdid;
138 } while(ascmd[++i].cmdid != 0);
143 if(cmdl->label == NULL) {
144 setcerr(107, NULL); /* no label in START */
148 asprop->prog = strdup_chk(cmdl->label, "asprop.prog");
149 /* オペランドがある場合、実行開始番地を設定 */
150 if(pass == SECOND && cmdl->opd->opdc == 1) {
151 if((prog->start = getlabel(asprop->prog, cmdl->opd->opdv[0])) == 0xFFFF) {
152 setcerr(103, cmdl->opd->opdv[0]); /* label not found */
160 asprop->lptr = asprop->ptr;
162 /* 実行終了番地と次のプログラムの実行開始番地を設定 */
163 else if(pass == SECOND) {
164 prog->end = asprop->lptr;
170 for(i = 0; i < atoi(cmdl->opd->opdv[0]); i++) {
171 writememory(0x0, (asprop->ptr)++, pass);
179 for(i = 0; i < cmdl->opd->opdc; i++) {
180 writeDC(cmdl->opd->opdv[i], pass);
199 * 書込に成功した場合はtrue、それ以外の場合はfalseを返す
201 bool macrocmd(const CMDLINE *cmdl, PASS pass)
206 MACROCMD macrocmd[] = {
208 { OUT, 2, 2, "OUT" },
209 { RPUSH, 0, 0, "RPUSH" },
210 { RPOP, 0, 0, "RPOP" },
215 if(strcmp(cmdl->cmd, macrocmd[i].cmd) == 0) {
216 if(cmdl->opd->opdc < macrocmd[i].opdc_min ||
217 cmdl->opd->opdc > macrocmd[i].opdc_max)
219 setcerr(106, NULL); /* operand count mismatch */
222 cmdid = macrocmd[i].cmdid;
225 } while(macrocmd[++i].cmdid != 0);
229 status = writeIN(cmdl->opd->opdv[0], cmdl->opd->opdv[1], pass);
232 status = writeOUT(cmdl->opd->opdv[0], cmdl->opd->opdv[1], pass);
235 status = writeRPUSH(pass);
238 status = writeRPOP(pass);
247 * マクロ命令「IN IBUF,LEN」をメモリに書込
256 bool writeIN(const char *ibuf, const char *len, PASS pass)
261 writememory(0x7001, (asprop->ptr)++, pass);
262 writememory(0x0, (asprop->ptr)++, pass);
264 writememory(0x7002, (asprop->ptr)++, pass);
265 writememory(0x0, (asprop->ptr)++, pass);
267 writememory(0x1210, (asprop->ptr)++, pass);
268 writememory(getadr(asprop->prog, ibuf, pass), (asprop->ptr)++, pass);
270 writememory(0x1220, (asprop->ptr)++, pass);
271 writememory(getadr(asprop->prog, len, pass), (asprop->ptr)++, pass);
273 writememory(0xF000, (asprop->ptr)++, pass);
274 writememory(0x0001, (asprop->ptr)++, pass);
276 writememory(0x7120, (asprop->ptr)++, pass);
278 writememory(0x7110, (asprop->ptr)++, pass);
286 * マクロ命令「OUT OBUF,LEN」をメモリに書込
298 bool writeOUT(const char *obuf, const char *len, PASS pass)
303 writememory(0x7001, (asprop->ptr)++, pass);
304 writememory(0x0, (asprop->ptr)++, pass);
306 writememory(0x7002, (asprop->ptr)++, pass);
307 writememory(0x0, (asprop->ptr)++, pass);
309 writememory(0x1210, (asprop->ptr)++, pass);
310 writememory(getadr(asprop->prog, obuf, pass), (asprop->ptr)++, pass);
312 writememory(0x1220, (asprop->ptr)++, pass);
313 writememory(getadr(asprop->prog, len, pass), (asprop->ptr)++, pass);
315 writememory(0xF000, (asprop->ptr)++, pass);
316 writememory(0x0002, (asprop->ptr)++, pass);
318 writememory(0x1210, (asprop->ptr)++, pass);
322 writememory(asprop->lptr, (asprop->ptr)++, pass); /* リテラルのアドレスを書込 */
324 writememory(0xA, (asprop->lptr)++, pass);
326 writememory(0x1220, (asprop->ptr)++, pass);
330 writememory(asprop->lptr, (asprop->ptr)++, pass); /* リテラルのアドレスを書込 */
332 writememory(0x1, (asprop->lptr)++, pass);
334 writememory(0xF000, (asprop->ptr)++, pass);
335 writememory(0x0002, (asprop->ptr)++, pass);
337 writememory(0x7120, (asprop->ptr)++, pass);
339 writememory(0x7110, (asprop->ptr)++, pass);
346 /** マクロ命令「RPUSH」をメモリに書き込む
355 bool writeRPUSH(PASS pass)
360 for(i = 1; i <= 7; i++) {
361 writememory(0x7000 + i, (asprop->ptr)++, pass); /* PUSH GRn */
362 writememory(0x0, (asprop->ptr)++, pass);
371 * マクロ命令「RPOP」をメモリに書き込む
381 bool writeRPOP(PASS pass)
385 for(i = 7; i >= 1; i--) {
386 writememory((0x7100 + (i << 4)), (asprop->ptr)++, pass); /* POP GRn */
396 * 書込に成功した場合はtrue、それ以外の場合はfalseを返す
398 bool cometcmd(const CMDLINE *cmdl, PASS pass)
400 WORD cmd, adr, r1, r2, x;
404 if(cmdl->opd->opdc == 0) {
405 if((cmd = getcmdcode(cmdl->cmd, NONE)) == 0xFFFF) {
406 setcerr(112, cmdl->cmd); /* not command of no operand */
409 if(writememory(cmd, (asprop->ptr)++, pass) == true) {
414 else if((r1 = getgr(cmdl->opd->opdv[0], false)) != 0xFFFF) {
416 if(cmdl->opd->opdc == 1) {
417 if((cmd = getcmdcode(cmdl->cmd, R_)) == 0xFFFF) {
418 setcerr(108, cmdl->cmd); /* not command of operand "r" */
422 if(writememory(cmd, (asprop->ptr)++, pass) == true) {
426 /* オペランド数2。第2オペランドは汎用レジスタ */
427 else if(cmdl->opd->opdc == 2 && (r2 = getgr(cmdl->opd->opdv[1], false)) != 0xFFFF) {
428 if((cmd = getcmdcode(cmdl->cmd, R1_R2)) == 0xFFFF) {
429 setcerr(109, cmdl->cmd); /* not command of operand "r1,r2" */
432 cmd |= ((r1 << 4) | r2);
433 if(cerr->num == 0 && writememory(cmd, (asprop->ptr)++, pass) == true) {
437 /* オペランド数2〜3。第2オペランドはアドレス、 */
438 /* 第3オペランドは指標レジスタとして用いる汎用レジスタ */
439 else if(cmdl->opd->opdc == 2 || cmdl->opd->opdc == 3) {
440 if((cmd = getcmdcode(cmdl->cmd, R_ADR_X_)) == 0xFFFF &&
441 (cmd = getcmdcode(cmdl->cmd, R_ADR_X)) == 0xFFFF)
443 setcerr(110, cmdl->cmd); /* not command of operand "r,adr[,x]" */
448 if(cmdl->opd->opdc == 3) {
449 if((x = getgr(cmdl->opd->opdv[2], true)) == 0xFFFF) {
450 setcerr(125, cmdl->cmd); /* not GR in operand x */
455 adr = getadr(asprop->prog, cmdl->opd->opdv[1], pass);
456 writememory(cmd, (asprop->ptr)++, pass);
457 writememory(adr, (asprop->ptr)++, pass);
462 setcerr(113, cmdl->cmd); /* operand too many in COMET II command */
466 /* オペランド数1〜2。第1オペランドはアドレス */
467 else if(cmdl->opd->opdc == 1 || cmdl->opd->opdc == 2) {
468 if((cmd = getcmdcode(cmdl->cmd, ADR_X)) == 0xFFFF) {
469 setcerr(111, cmdl->cmd); /* not command of operand "adr[,x]" */
472 /* オペランド数2の場合、第2オペランドは指標レジスタとして用いる汎用レジスタ */
473 if(cmdl->opd->opdc == 2) {
474 x = getgr(cmdl->opd->opdv[1], true);
480 /* CALLの場合はプログラムの入口名を表すラベルを取得 */
481 /* CALL以外の命令の場合と、プログラムの入口名を取得できない場合は、 */
482 /* 同一プログラム内のラベルを取得 */
483 if(pass == SECOND && cmd == 0x8000) { /* CALL命令 */
484 adr = getlabel(NULL, cmdl->opd->opdv[0]);
486 if(cmd != 0x8000 || (pass == SECOND && adr == 0xFFFF)) {
487 adr = getadr(asprop->prog, cmdl->opd->opdv[0], pass);
489 writememory(cmd, (asprop->ptr)++, pass);
490 writememory(adr, (asprop->ptr)++, pass);
499 * COMET IIのメモリにアドレス値を書き込む
501 bool writememory(WORD word, WORD adr, PASS pass)
505 /* COMET IIメモリオーバーの場合 */
506 if(adr >= sys->memsize) {
507 setcerr(119, word2n(adr)); /* out of COMET II memory */
510 (sys->memory)[adr] = word;
511 if(pass == SECOND && asmode.asdetail == true) {
512 fprintf(stdout, "\t#%04X\t#%04X\n", adr, word);
522 void writestr(const char *str, bool literal, PASS pass)
524 assert(cerr->num == 0 && *str == '\'');
525 const char *p = str + 1;
529 /* 閉じ「'」がないまま文字列が終了した場合 */
531 setcerr(123, str); /* unclosed quote */
534 /* 「'」の場合、次の文字が「'」でない場合は正常終了 */
535 if(*p == '\'' && *(++p) != '\'') {
537 } else if(literal == true && lw == true) {
538 setcerr(124, str); /* more than one character in literal */
541 /*リテラルの場合はリテラル領域に書込 */
542 if(literal == true) {
543 writememory(*(p++), (asprop->lptr)++, pass);
546 writememory(*(p++), (asprop->ptr)++, pass);
554 void writeDC(const char *str, PASS pass)
558 writestr(str, false, pass);
560 if(*str == '#' || isdigit(*str) || *str == '-') {
563 if(pass == SECOND && (adr = getlabel(asprop->prog, str)) == 0xFFFF) {
564 setcerr(103, str); /* label not found */
567 writememory(adr, (asprop->ptr)++, pass);
574 bool assembleline(const CMDLINE *cmdl, PASS pass)
578 if(cmdl->cmd == NULL){
579 /* ラベルが定義されていて命令がない場合はエラー */
580 if(cmdl->label != NULL) {
581 setcerr(105, NULL); /* no command in the line */
585 else if(cerr->num == 0 && assemblecmd(cmdl, pass) == true) {
589 else if(cerr->num == 0 && macrocmd(cmdl, pass) == true) {
593 else if(cerr->num == 0 && cometcmd(cmdl, pass) == true) {
596 else if(cerr->num == 0) {
597 setcerr(113, cmdl->cmd); /* operand too many in COMET II command */
607 * ファイルストリームの現在行を番号付きで表示する
609 void printline(FILE *stream, const char *filename, int lineno, char *line)
611 fprintf(stream, "%s:%5d:%s", filename, lineno, line);
616 * アドレスには、リテラル/10進定数/16進定数/アドレス定数が含まれる
618 WORD getadr(const char *prog, const char *str, PASS pass)
622 adr = getliteral(str, pass);
623 } else if(isdigit(*str) || *str == '-' || *str == '#') {
626 if(pass == SECOND && (adr = getlabel(prog, str)) == 0xFFFF) {
628 setcerr(103, str); /* label not found */
639 bool assemble(const char *file, PASS pass)
647 addcerrlist(ARRAYSIZE(cerr_assemble), cerr_assemble);
648 if((fp = fopen(file, "r")) == NULL) {
653 cmdl = malloc_chk(sizeof(CMDLINE), "cmdl");
654 line = malloc_chk(LINESIZE + 1, "line");
655 if((line = fgets(line, LINESIZE, fp)) == NULL) {
659 if((pass == FIRST && asmode.src == true) ||
660 (pass == SECOND && asmode.asdetail == true))
662 printline(stdout, file, lineno, line);
664 if((cmdl = linetok(line)) != NULL) {
665 if(pass == FIRST && cmdl->label != NULL) {
666 if(addlabel(asprop->prog, cmdl->label, asprop->ptr) == false) {
670 if(assembleline(cmdl, pass) == false) {
677 free_chk(line, "line");
678 free_chk(cmdl, "cmdl");
681 fprintf(stderr, "Assemble error - %d: %s\n", cerr->num, cerr->msg);
682 printline(stderr, file, lineno, line);
690 * 引数で指定したファイルにアセンブル結果を書込
692 void outassemble(const char *file)
696 if((fp = fopen(file, "w")) == NULL) {
700 fwrite(sys->memory, sizeof(WORD), prog->end, fp);