np2/i286a/i286a_8x.s - view

File: [RetroPC.NET] / np2 / i286a / i286a_8x.s
Revision 1.5: download - view: text, annotated - select for diffs
Fri Dec 19 04:14:08 2003 JST (21 years, 10 months ago) by yui
Branches: MAIN
CVS tags: HEAD

fix i286a (T.Yui)

INCLUDE i286a.inc INCLUDE i286aea.inc INCLUDE i286aalu.inc IMPORT i286a_ea IMPORT i286_memoryread IMPORT i286_memoryread_w IMPORT i286_memorywrite IMPORT i286_memorywrite_w EXPORT i286aop80 EXPORT i286aop81 EXPORT i286aop83 AREA .text, CODE, READONLY i286aop80 GETPC8 and r6, r0, #(7 << 3) cmp r0, #&c0 bcc ope80m CPUWORK #3 R8SRC r0, r5 add r5, r5, #CPU_REG GETPC8 adr r1, op8x_reg8 ldr pc, [r1, r6 lsr #1] ope80m CPUWORK #7 bl i286a_ea cmp r0, #I286_MEMWRITEMAX bcs ope80e add r5, r9, r0 GETPC8 adr r1, op8x_reg8 ldr pc, [r1, r6 lsr #1] ope80e mov r4, r0 GETPC8 mov r5, r0 bl i286_memoryread adr r1, op8x_ext8 ldr pc, [r1, r6 lsr #1] op8x_reg8 dcd add_r8_i dcd or_r8_i dcd adc_r8_i dcd sbb_r8_i dcd and_r8_i dcd sub_r8_i dcd xor_r8_i dcd cmp_r8_i op8x_ext8 dcd add_r8_e dcd or_r8_e dcd adc_r8_e dcd sbb_r8_e dcd and_r8_e dcd sub_r8_e dcd xor_r8_e dcd cmp_r8_e add_r8_i ldrb r6, [r5] ADD8 r6, r0 strb r1, [r5] mov pc, r11 or_r8_i ldrb r6, [r5] OR8 r6, r0 strb r1, [r5] mov pc, r11 adc_r8_i ldrb r6, [r5] ADC8 r6, r0 strb r1, [r5] mov pc, r11 sbb_r8_i ldrb r6, [r5] SBB8 r6, r0 strb r1, [r5] mov pc, r11 and_r8_i ldrb r6, [r5] AND8 r6, r0 strb r1, [r5] mov pc, r11 sub_r8_i ldrb r6, [r5] SUB8 r6, r0 strb r1, [r5] mov pc, r11 xor_r8_i ldrb r6, [r5] XOR8 r6, r0 strb r1, [r5] mov pc, r11 cmp_r8_i ldrb r6, [r5] SUB8 r6, r0 mov pc, r11 add_r8_e ADD8 r0, r4 mov r0, r5 mov lr, r11 b i286_memorywrite or_r8_e OR8 r0, r4 mov r0, r5 mov lr, r11 b i286_memorywrite adc_r8_e ADC8 r0, r4 mov r0, r5 mov lr, r11 b i286_memorywrite sbb_r8_e SBB8 r0, r4 mov r0, r5 mov lr, r11 b i286_memorywrite and_r8_e AND8 r0, r4 mov r0, r5 mov lr, r11 b i286_memorywrite sub_r8_e SUB8 r0, r4 mov r0, r5 mov lr, r11 b i286_memorywrite xor_r8_e XOR8 r0, r4 mov r0, r5 mov lr, r11 b i286_memorywrite cmp_r8_e SUB8 r0, r4 mov pc, r11 ; ---- i286aop81 GETPC8 and r6, r0, #(7 << 3) cmp r0, #&c0 bcc ope81m CPUWORK #3 R16SRC r0, r5 add r5, r5, #CPU_REG GETPC16 adr r1, op8x_reg16 ldr pc, [r1, r6 lsr #1] ope81m CPUWORK #7 bl i286a_ea tst r0, #1 bne ope81e cmp r0, #I286_MEMWRITEMAX bcs ope81e add r5, r9, r0 GETPC16 adr r1, op8x_reg16 ldr pc, [r1, r6 lsr #1] ope81e mov r5, r0 bl i286_memoryread_w mov r4, r0 GETPC16 adr r1, op8x_ext16 ldr pc, [r1, r6 lsr #1] i286aop83 GETPC8 and r6, r0, #(7 << 3) cmp r0, #&c0 bcc ope83m CPUWORK #3 R16SRC r0, r5 add r5, r5, #CPU_REG GETPC8 tst r0, #(1 << 7) orrne r0, r0, #(&ff << 8) adr r1, op8x_reg16 ldr pc, [r1, r6 lsr #1] ope83m CPUWORK #7 bl i286a_ea tst r0, #1 bne ope83e cmp r0, #I286_MEMWRITEMAX bcs ope83e add r5, r9, r0 GETPC8 tst r0, #(1 << 7) orrne r0, r0, #(&ff << 8) adr r1, op8x_reg16 ldr pc, [r1, r6 lsr #1] ope83e mov r5, r0 bl i286_memoryread_w mov r4, r0 GETPC8 tst r0, #(1 << 7) orrne r0, r0, #(&ff << 8) adr r1, op8x_ext16 ldr pc, [r1, r6 lsr #1] op8x_reg16 dcd add_r16_i dcd or_r16_i dcd adc_r16_i dcd sbb_r16_i dcd and_r16_i dcd sub_r16_i dcd xor_r16_i dcd cmp_r16_i op8x_ext16 dcd add_r16_e dcd or_r16_e dcd adc_r16_e dcd sbb_r16_e dcd and_r16_e dcd sub_r16_e dcd xor_r16_e dcd cmp_r16_e add_r16_i ldrh r6, [r5] ADD16 r6, r0 strh r1, [r5] mov pc, r11 or_r16_i ldrh r6, [r5] OR16 r6, r0 strh r1, [r5] mov pc, r11 adc_r16_i ldrh r6, [r5] ADC16 r6, r0 strh r1, [r5] mov pc, r11 sbb_r16_i ldrh r6, [r5] SBB16 r6, r0 strh r1, [r5] mov pc, r11 and_r16_i ldrh r6, [r5] AND16 r6, r0 strh r1, [r5] mov pc, r11 sub_r16_i ldrh r6, [r5] SUB16 r6, r0 strh r1, [r5] mov pc, r11 xor_r16_i ldrh r6, [r5] XOR16 r6, r0 strh r1, [r5] mov pc, r11 cmp_r16_i ldrh r6, [r5] SUB16 r6, r0 mov pc, r11 add_r16_e ADD16 r4, r0 mov r0, r5 mov lr, r11 b i286_memorywrite_w or_r16_e OR16 r4, r0 mov r0, r5 mov lr, r11 b i286_memorywrite_w adc_r16_e ADC16 r4, r0 mov r0, r5 mov lr, r11 b i286_memorywrite_w sbb_r16_e SBB16 r4, r0 mov r0, r5 mov lr, r11 b i286_memorywrite_w and_r16_e AND16 r4, r0 mov r0, r5 mov lr, r11 b i286_memorywrite_w sub_r16_e SUB16 r4, r0 mov r0, r5 mov lr, r11 b i286_memorywrite_w xor_r16_e XOR16 r4, r0 mov r0, r5 mov lr, r11 b i286_memorywrite_w cmp_r16_e SUB16 r4, r0 mov pc, r11 END