MAME SVN History

199869 Revisions

r20377 Sunday 20th January, 2013 at 19:47:38 UTC by R. Belmont
m740: Correct disassembly for bit+zp+rel. offset form of BBC/BBS [R. Belmont]

[src/emu/cpu/m6502]

dm740.lst m6502.c m6502.h m740.h om740.lst

trunk/src/emu/cpu/m6502/m6502.c
r20376	r20377
617	617	flags \|= 2;
618	618	break;
619	619
	620	case DASM_bzr:
	621	sprintf(buffer, " %d, $%02x, $%04x", (opram[0] >> 5) & 7, opram[1], (pc & 0xf0000) \| UINT16(pc + 1 + INT8(opram[2])));
	622	flags \|= 3;
	623	break;
	624
620	625	default:
621	626	fprintf(stderr, "Unhandled dasm mode %d\n", e.mode);
622	627	abort();

trunk/src/emu/cpu/m6502/m6502.h
r20376	r20377
127	127	DASM_zpy, /* zero page + Y */
128	128	DASM_imz, /* load immediate byte, store to zero page address (M740) */
129	129	DASM_spg, /* "special page": implied FF00 plus immediate value (M740)*/
130		DASM_biz /* bit, zero page (M740) */
	130	DASM_biz, /* bit, zero page (M740) */
	131	DASM_bzr /* bit, zero page, relative offset (M740) */
131	132	};
132	133
133	134	enum {

trunk/src/emu/cpu/m6502/m740.h
r20376	r20377
70	70	O(reset740);
71	71	O(seb_biz); O(seb_acc);
72	72	O(clb_biz); O(clb_acc);
73		O(bbc_biz); O(bbc_acc);
74		O(bbs_biz); O(bbs_acc);
	73	O(bbc_bzr); O(bbc_acc);
	74	O(bbs_bzr); O(bbs_acc);
75	75	O(rrf_zpg);
76	76	O(bra_rel);
77	77

trunk/src/emu/cpu/m6502/dm740.lst
r20376	r20377
1	1	# m740 device
2		brk_imp ora_idx kil_non bbs_acc nop_zpg ora_zpg asl_zpg bbs_biz php_imp ora_imm asl_acc seb_acc nop_aba ora_aba asl_aba seb_biz
3		bpl_rel ora_idy clt_imp bbc_acc nop_zpx ora_zpx asl_zpx bbc_biz clc_imp ora_aby nop_imp clb_acc nop_abx ora_abx asl_abx clb_biz
4		jsr_adr and_idx jsr_spg bbs_acc bit_zpg and_zpg rol_zpg bbs_biz plp_imp and_imm rol_acc seb_acc bit_aba and_aba rol_aba seb_biz
5		bmi_rel and_idy set_imp bbc_acc nop_zpx and_zpx rol_zpx bbc_biz sec_imp and_aby nop_imp clb_acc ldm_imz and_abx rol_abx clb_biz
6		rti_imp eor_idx kil_non bbs_acc nop_zpg eor_zpg lsr_zpg bbs_biz pha_imp eor_imm lsr_acc seb_acc jmp_adr eor_aba lsr_aba seb_biz
7		bvc_rel eor_idy kil_non bbc_acc nop_zpx eor_zpx lsr_zpx bbc_biz cli_imp eor_aby nop_imp clb_acc nop_abx eor_abx lsr_abx clb_biz
8		rts_imp adc_idx kil_non bbs_acc nop_zpg adc_zpg ror_zpg bbs_biz pla_imp adc_imm ror_acc seb_acc jmp_ind adc_aba ror_aba seb_biz
9		bvs_rel adc_idy kil_non bbc_acc nop_zpx adc_zpx ror_zpx bbc_biz sei_imp adc_aby nop_imp clb_acc nop_abx adc_abx ror_abx clb_biz
10		bra_rel sta_idx rrf_zpg bbs_acc sty_zpg sta_zpg stx_zpg bbs_biz dey_imp nop_imm txa_imp seb_acc sty_aba sta_aba stx_aba seb_biz
11		bcc_rel sta_idy kil_non bbc_acc sty_zpx sta_zpx stx_zpy bbc_biz tya_imp sta_aby txs_imp clb_acc shy_abx sta_abx shx_aby clb_biz
12		ldy_imm lda_idx ldx_imm bbs_acc ldy_zpg lda_zpg ldx_zpg bbs_biz tay_imp lda_imm tax_imp seb_acc ldy_aba lda_aba ldx_aba seb_biz
13		bcs_rel lda_idy kil_non bbc_acc ldy_zpx lda_zpx ldx_zpy bbc_biz clv_imp lda_aby tsx_imp clb_acc ldy_abx lda_abx ldx_aby clb_biz
14		cpy_imm cmp_idx nop_imm bbs_acc cpy_zpg cmp_zpg dec_zpg bbs_biz iny_imp cmp_imm dex_imp seb_acc cpy_aba cmp_aba dec_aba seb_biz
15		bne_rel cmp_idy kil_non bbc_acc nop_zpx cmp_zpx dec_zpx bbc_biz cld_imp cmp_aby nop_imp clb_acc nop_abx cmp_abx dec_abx clb_biz
16		cpx_imm sbc_idx nop_imm bbs_acc cpx_zpg sbc_zpg inc_zpg bbs_biz inx_imp sbc_imm nop_imp seb_acc cpx_aba sbc_aba inc_aba seb_biz
17		beq_rel sbc_idy kil_non bbc_acc nop_zpx sbc_zpx inc_zpx bbc_biz sed_imp sbc_aby nop_imp clb_acc nop_abx sbc_abx inc_abx clb_biz
	2	brk_imp ora_idx kil_non bbs_acc nop_zpg ora_zpg asl_zpg bbs_bzr php_imp ora_imm asl_acc seb_acc nop_aba ora_aba asl_aba seb_biz
	3	bpl_rel ora_idy clt_imp bbc_acc nop_zpx ora_zpx asl_zpx bbc_bzr clc_imp ora_aby nop_imp clb_acc nop_abx ora_abx asl_abx clb_biz
	4	jsr_adr and_idx jsr_spg bbs_acc bit_zpg and_zpg rol_zpg bbs_bzr plp_imp and_imm rol_acc seb_acc bit_aba and_aba rol_aba seb_biz
	5	bmi_rel and_idy set_imp bbc_acc nop_zpx and_zpx rol_zpx bbc_bzr sec_imp and_aby nop_imp clb_acc ldm_imz and_abx rol_abx clb_biz
	6	rti_imp eor_idx kil_non bbs_acc nop_zpg eor_zpg lsr_zpg bbs_bzr pha_imp eor_imm lsr_acc seb_acc jmp_adr eor_aba lsr_aba seb_biz
	7	bvc_rel eor_idy kil_non bbc_acc nop_zpx eor_zpx lsr_zpx bbc_bzr cli_imp eor_aby nop_imp clb_acc nop_abx eor_abx lsr_abx clb_biz
	8	rts_imp adc_idx kil_non bbs_acc nop_zpg adc_zpg ror_zpg bbs_bzr pla_imp adc_imm ror_acc seb_acc jmp_ind adc_aba ror_aba seb_biz
	9	bvs_rel adc_idy kil_non bbc_acc nop_zpx adc_zpx ror_zpx bbc_bzr sei_imp adc_aby nop_imp clb_acc nop_abx adc_abx ror_abx clb_biz
	10	bra_rel sta_idx rrf_zpg bbs_acc sty_zpg sta_zpg stx_zpg bbs_bzr dey_imp nop_imm txa_imp seb_acc sty_aba sta_aba stx_aba seb_biz
	11	bcc_rel sta_idy kil_non bbc_acc sty_zpx sta_zpx stx_zpy bbc_bzr tya_imp sta_aby txs_imp clb_acc shy_abx sta_abx shx_aby clb_biz
	12	ldy_imm lda_idx ldx_imm bbs_acc ldy_zpg lda_zpg ldx_zpg bbs_bzr tay_imp lda_imm tax_imp seb_acc ldy_aba lda_aba ldx_aba seb_biz
	13	bcs_rel lda_idy kil_non bbc_acc ldy_zpx lda_zpx ldx_zpy bbc_bzr clv_imp lda_aby tsx_imp clb_acc ldy_abx lda_abx ldx_aby clb_biz
	14	cpy_imm cmp_idx nop_imm bbs_acc cpy_zpg cmp_zpg dec_zpg bbs_bzr iny_imp cmp_imm dex_imp seb_acc cpy_aba cmp_aba dec_aba seb_biz
	15	bne_rel cmp_idy kil_non bbc_acc nop_zpx cmp_zpx dec_zpx bbc_bzr cld_imp cmp_aby nop_imp clb_acc nop_abx cmp_abx dec_abx clb_biz
	16	cpx_imm sbc_idx nop_imm bbs_acc cpx_zpg sbc_zpg inc_zpg bbs_bzr inx_imp sbc_imm nop_imp seb_acc cpx_aba sbc_aba inc_aba seb_biz
	17	beq_rel sbc_idy kil_non bbc_acc nop_zpx sbc_zpx inc_zpx bbc_bzr sed_imp sbc_aby nop_imp clb_acc nop_abx sbc_abx inc_abx clb_biz
18	18	reset740

trunk/src/emu/cpu/m6502/om740.lst
r20376	r20377
50	50	write(TMP, TMP2);
51	51	prefetch();
52	52
53		bbc_biz
	53	bbc_bzr
54	54	TMP = read_pc();
55	55	TMP2 = read(TMP);
56	56	TMP = read_pc();
r20376	r20377
60	60	}
61	61	prefetch();
62	62
63		bbs_biz
	63	bbs_bzr
64	64	TMP = read_pc();
65	65	TMP2 = read(TMP);
66	66	TMP = read_pc();

199869 Revisions