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m740: Correct disassembly for bit+zp+rel. offset form of BBC/BBS [R. Belmont]

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R. Belmont 2013-01-20 19:47:38 +00:00
parent fcd97973dd
commit 18a0b2a85a
5 changed files with 27 additions and 21 deletions
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32
src/emu/cpu/m6502/dm740.lst
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@ -1,18 +1,18 @@
# m740 device
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
reset740

5
src/emu/cpu/m6502/m6502.c
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@ -617,6 +617,11 @@ offs_t m6502_device::disassemble_generic(char *buffer, offs_t pc, const UINT8 *o
flags |= 2;
break;
case DASM_bzr:
sprintf(buffer, " %d, $%02x, $%04x", (opram[0] >> 5) & 7, opram[1], (pc & 0xf0000) | UINT16(pc + 1 + INT8(opram[2])));
flags |= 3;
break;
default:
fprintf(stderr, "Unhandled dasm mode %d\n", e.mode);
abort();

3
src/emu/cpu/m6502/m6502.h
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@ -127,7 +127,8 @@ protected:
DASM_zpy, /* zero page + Y */
DASM_imz, /* load immediate byte, store to zero page address (M740) */
DASM_spg, /* "special page": implied FF00 plus immediate value (M740)*/
DASM_biz /* bit, zero page (M740) */
DASM_biz, /* bit, zero page (M740) */
DASM_bzr /* bit, zero page, relative offset (M740) */
};
enum {

4
src/emu/cpu/m6502/m740.h
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@ -70,8 +70,8 @@ protected:
O(reset740);
O(seb_biz); O(seb_acc);
O(clb_biz); O(clb_acc);
O(bbc_biz); O(bbc_acc);
O(bbs_biz); O(bbs_acc);
O(bbc_bzr); O(bbc_acc);
O(bbs_bzr); O(bbs_acc);
O(rrf_zpg);
O(bra_rel);

4
src/emu/cpu/m6502/om740.lst
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@ -50,7 +50,7 @@ seb_biz
write(TMP, TMP2);
prefetch();
bbc_biz
bbc_bzr
TMP = read_pc();
TMP2 = read(TMP);
TMP = read_pc();
@ -60,7 +60,7 @@ bbc_biz
}
prefetch();
bbs_biz
bbs_bzr
TMP = read_pc();
TMP2 = read(TMP);
TMP = read_pc();