--- np2/i286a/i286a_mn.s 2003/12/16 04:58:00 1.1 +++ np2/i286a/i286a_mn.s 2003/12/17 03:46:27 1.4 @@ -11,8 +11,14 @@ IMPORT i286_memoryread_w IMPORT i286_memorywrite IMPORT i286_memorywrite_w + IMPORT iocore_inp8 + IMPORT iocore_inp16 + IMPORT iocore_out8 + IMPORT iocore_out16 + IMPORT i286a_localint EXPORT i286a_step + EXPORT optbl1 AREA .text, CODE, READONLY @@ -32,7 +38,7 @@ or_r16_ea OP_R16_EA OR16, #2, #7 or_al_d8 OP_AL_D8 OR8, #3 or_ax_d16 OP_AX_D16 OR16, #3 push_cs REGPUSH #CPU_CS, #3 - +; ope0f adc_ea_r8 OP_EA_R8 ADC8, #2, #7 adc_ea_r16 OP_EA_R16 ADC16, #2, #7 @@ -58,8 +64,8 @@ and_r8_ea OP_R8_EA AND8, #2, #7 and_r16_ea OP_R16_EA AND16, #2, #7 and_al_d8 OP_AL_D8 AND8, #3 and_ax_d16 OP_AX_D16 AND16, #3 -; segprefix_es -; daa +; segprefix_es ! +; daa * sub_ea_r8 OP_EA_R8 SUB8, #2, #7 sub_ea_r16 OP_EA_R16 SUB16, #2, #7 @@ -67,8 +73,8 @@ sub_r8_ea OP_R8_EA SUB8, #2, #7 sub_r16_ea OP_R16_EA SUB16, #2, #7 sub_al_d8 OP_AL_D8 SUB8, #3 sub_ax_d16 OP_AX_D16 SUB16, #3 -; segprefix_cs -; das +; segprefix_cs ! +; das * xor_ea_r8 OP_EA_R8 XOR8, #2, #7 xor_ea_r16 OP_EA_R16 XOR16, #2, #7 @@ -76,8 +82,8 @@ xor_r8_ea OP_R8_EA XOR8, #2, #7 xor_r16_ea OP_R16_EA XOR16, #2, #7 xor_al_d8 OP_AL_D8 XOR8, #3 xor_ax_d16 OP_AX_D16 XOR16, #3 -; segprefix_ss -; aaa +; segprefix_ss ! +; aaa * cmp_ea_r8 S_EA_R8 SUB8, #2, #7 cmp_ea_r16 S_EA_R16 SUB16, #2, #7 @@ -85,8 +91,8 @@ cmp_r8_ea S_R8_EA SUB8, #2, #6 cmp_r16_ea S_R16_EA SUB16, #2, #6 cmp_al_d8 S_AL_D8 SUB8, #3 cmp_ax_d16 S_AX_D16 SUB16, #3 -; segprefix_ds -; aas +; segprefix_ds ! +; aas * inc_ax OP_INC16 #CPU_AX, #2 inc_cx OP_INC16 #CPU_CX, #2 @@ -122,39 +128,39 @@ pop_bp REGPOP #CPU_BP, #5 pop_si REGPOP #CPU_SI, #5 pop_di REGPOP #CPU_DI, #5 -; pusha -; popa +; pusha * +; popa * ; bound ; arpl -; push_d16 -; imul_reg_ea_d16 -; push_d8 -; imul_reg_ea_d8 -; insb -; insw -; outsb -; outsw - -; jo_short -; jno_short -; jc_short -; jnc_short -; jz_short -; jnz_short -; jna_short -; ja_short -; js_short -; jns_short -; jp_short -; jnp_short -; jl_short -; jnl_short -; jle_short -; jnle_short - -; calc_ea8_i8 -; calc_ea16_i16 -; calc_ea16_i8 +; push_d16 * +; imul_r_ea_d16 + +; push_d8 * +; imul_r_ea_d8 + +; insb * +; insw * +; outsb * +; outsw * + +jo_short JMPNE #O_FLAG, #2, #7 +jno_short JMPEQ #O_FLAG, #2, #7 +jc_short JMPNE #C_FLAG, #2, #7 +jnc_short JMPEQ #C_FLAG, #2, #7 +jz_short JMPNE #Z_FLAG, #2, #7 +jnz_short JMPEQ #Z_FLAG, #2, #7 +jna_short JMPNE #(Z_FLAG + C_FLAG), #2, #7 +ja_short JMPEQ #(Z_FLAG + C_FLAG), #2, #7 +js_short JMPNE #S_FLAG, #2, #7 +jns_short JMPEQ #S_FLAG, #2, #7 +jp_short JMPNE #P_FLAG, #2, #7 +jnp_short JMPEQ #P_FLAG, #2, #7 +; jl_short + +; jnl_short + +; jle_short + +; jnle_short + + +; calc_ea8_i8 + +; calc_ea16_i16 + +; calc_ea16_i8 + test_ea_r8 S_EA_R8 AND8, #2, #6 test_ea_r16 S_EA_R16 AND16, #2, #6 ; xchg_ea_r8 * @@ -163,10 +169,10 @@ test_ea_r16 S_EA_R16 AND16, #2, #6 ; mov_ea_r16 * ; mov_r8_ea * ; mov_r16_ea * -; mov_ea_seg -; lea_r16_ea -; mov_seg_ea -; pop_ea +; mov_ea_seg + +; lea_r16_ea + +; mov_seg_ea ! +; pop_ea * ; nop xchg_ax_cx XCHG_AX #CPU_CX, #3 @@ -176,31 +182,31 @@ xchg_ax_sp XCHG_AX #CPU_SP, #3 xchg_ax_bp XCHG_AX #CPU_BP, #3 xchg_ax_si XCHG_AX #CPU_SI, #3 xchg_ax_di XCHG_AX #CPU_DI, #3 -; cbw -; cwd -; call_far -; wait -; pushf -; popf -; sahf -; lahf - -; mov_al_m8 -; mov_ax_m16 -; mov_m8_al -; mov_m16_ax -; movsb -; movsw -; cmpsb -; cmpsw +; cbw * +; cwd * +; call_far * +; wait * +; pushf * +; popf ! +; sahf * +; lahf * + +; mov_al_m8 * +; mov_ax_m16 * +; mov_m8_al * +; mov_m16_ax * +; movsb * +; movsw * +; cmpsb * +; cmpsw * test_al_d8 S_AL_D8 AND8, #3 test_ax_d16 S_AX_D16 AND16, #3 -; stosb -; stosw -; lodsb -; lodsw -; scasb -; scasw +; stosb * +; stosw * +; lodsb * +; lodsw * +; scasb * +; scasw * mov_al_imm MOVIMM8 #CPU_AL, #2 mov_cl_imm MOVIMM8 #CPU_CL, #2 @@ -221,67 +227,355 @@ mov_di_imm MOVIMM16 #CPU_DI, #2 ; shift_ea8_d8 ; shift_ea16_d8 -; ret_near_d16 -; ret_near +; ret_near_d16 + +; ret_near + ; les_r16_ea ; lds_r16_ea -; mov_ea8_d8 -; mov_ea16_d16 +; mov_ea8_d8 * +; mov_ea16_d16 * ; enter -; leave -; ret_far_d16 -; ret_far -; int_03 -; int_d8 -; into -; iret +; leave + +; ret_far_d16 + +; ret_far + +; int_03 + +; int_d8 + +; into + +; iret ! ; shift_ea8_1 ; shift_ea16_1 ; shift_ea8_cl ; shift_ea16_cl -; aam -; aad -; setalc -; xlat -; esc - -; loopnz -; loopz -; loop -; jcxz -; in_al_d8 -; in_ax_d8 -; out_d8_al -; out_d8_ax -; call_near -; jmp_near -; jmp_far -; jmp_short -; in_al_dx -; in_ax_dx -; out_dx_al -; out_dx_ax - -; lock -; repne -; repe -; hlt -; cmc +; aam + +; aad * +; setalc * +; xlat * +; esc * + +; loopnz * +; loopz * +; loop * +; jcxz * +; in_al_d8 * +; in_ax_d8 * +; out_d8_al * +; out_d8_ax * +; call_near * +; jmp_near * +; jmp_far * +jmp_short JMPS #7 +; in_al_dx * +; in_ax_dx * +; out_dx_al * +; out_dx_ax * + +; lock * +; repne ! +; repe ! +; hlt + +; cmc * ; ope0xf6 ; ope0xf7 -; clc -; stc -; cli -; sti -; cld -; std +; clc * +; stc * +; cli * +; sti ! +; cld * +; std * ; ope0xfe ; ope0xff ; ---- +reserved mov r6, #6 + sub r8, r8, #(1 << 16) + b i286a_localint + +daa CPUWORK #3 + ldrb r0, [r9, #CPU_AL] + bic r8, r8, #O_FLAG + eor r2, r0, #&80 + tst r8, #A_FLAG + bne daalo2 + and r1, r0, #&0f + cmp r1, #10 + bcc daahi + orr r8, r8, #A_FLAG +daalo2 add r0, r0, #6 + orr r8, r8, r0 lsr #8 + and r0, r0, #&ff +daahi tst r8, #C_FLAG + bne daahi2 + cmp r0, #&a0 + bcc daaflg + orr r8, r8, #C_FLAG +daahi2 add r0, r0, #&60 + and r0, r0, #&ff +daaflg strb r0, [r9, #CPU_AL] + ldrb r1, [r10, r0] + bic r8, r8, #(&ff - A_FLAG - C_FLAG) + and r2, r0, r2 + orr r8, r1, r8 + tst r2, #&80 + addne r8, r8, #O_FLAG + mov pc, r11 + +das CPUWORK #3 + ldrb r0, [r9, #CPU_AL] + tst r8, #C_FLAG + bne dashi2 + cmp r0, #&9a + bcc daslo + orr r8, r8, #C_FLAG +dashi2 sub r0, r0, #&60 + and r0, r0, #&ff +daslo tst r8, #A_FLAG + bne daslo2 + and r1, r0, #&0f + cmp r1, #10 + bcc dasflg + orr r8, r8, #A_FLAG +daslo2 sub r0, r0, #6 + orr r8, r8, r0 lsr #31 + and r0, r0, #&ff +dasflg strb r0, [r9, #CPU_AL] + ldrb r1, [r10, r0] + bic r8, r8, #(&ff - A_FLAG - C_FLAG) + orr r8, r1, r8 + mov pc, r11 + +aaa CPUWORK #3 + ldrh r0, [r9, #CPU_AX] + tst r8, #A_FLAG + bic r8, r8, #(A_FLAG + C_FLAG) + bne aaa1 + and r1, r0, #&f + cmp r1, #10 + bcc aaa2 +aaa1 orr r8, r8, #(A_FLAG + C_FLAG) + add r0, r0, #6 + add r0, r0, #&100 +aaa2 bic r0, r0, #&f0 + strh r0, [r9, #CPU_AX] + mov pc, r11 + +aas CPUWORK #3 + ldrh r0, [r9, #CPU_AX] + tst r8, #A_FLAG + bic r8, r8, #(A_FLAG + C_FLAG) + bne aas1 + and r1, r0, #&f + cmp r1, #10 + movcc pc, r11 +aas1 orr r8, r8, #(A_FLAG + C_FLAG) + sub r0, r0, #6 + sub r0, r0, #&100 + strh r0, [r9, #CPU_AX] + mov pc, r11 + + +pusha ldrh r4, [r9, #CPU_SP] + ldr r5, [r9, #CPU_SS_BASE] + mov r6, r4 + mov r4, r4 lsl #16 + ldrh r1, [r9, #CPU_AX] + sub r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memorywrite_w + ldrh r1, [r9, #CPU_CX] + sub r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memorywrite_w + ldrh r1, [r9, #CPU_DX] + sub r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memorywrite_w + ldrh r1, [r9, #CPU_BX] + sub r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memorywrite_w + mov r1, r6 + sub r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memorywrite_w + ldrh r1, [r9, #CPU_BP] + sub r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memorywrite_w + ldrh r1, [r9, #CPU_SI] + sub r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memorywrite_w + ldrh r1, [r9, #CPU_DI] + sub r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memorywrite_w + mov r0, r4 lsr #16 + strh r0, [r9, #CPU_SP] + mov pc, r11 + +popa ldrh r4, [r9, #CPU_SP] + ldr r5, [r9, #CPU_SS_BASE] + add r0, r5, r4 + mov r4, r4 lsl #16 + bl i286_memoryread_w + strh r0, [r9, #CPU_DI] + add r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memoryread_w + strh r0, [r9, #CPU_SI] + add r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memoryread_w + strh r0, [r9, #CPU_BP] + add r4, r4, #(4 << 16) + add r0, r5, r4 lsr #16 + bl i286_memoryread_w + strh r0, [r9, #CPU_BX] + add r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memoryread_w + strh r0, [r9, #CPU_DX] + add r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memoryread_w + strh r0, [r9, #CPU_CX] + add r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memoryread_w + strh r0, [r9, #CPU_AX] + add r4, r4, #(2 << 16) + mov r0, r4 lsr #16 + strh r0, [r9, #CPU_SP] + mov pc, r11 + +push_d16 CPUWORK #3 + GETPC16 + ldrh r2, [r9, #CPU_SP] + ldr r3, [r9, #CPU_SS_BASE] + subs r2, r2, #2 + addcc r2, r2, #&10000 + mov r1, r0 + strh r2, [r9, #CPU_SP] + add r0, r2, r3 + mov lr, r11 + b i286_memorywrite_w + +imul_r_ea_d16 REG16EA r5, #21, #24 + mov r4, r0, lsl #16 + GETPC16 + mov r0, r0, lsl #16 + mov r4, r4, asr #16 + mov r0, r0, asr #16 + mul r1, r0, r4 + add r12, r1, #&8000 + strh r1, [r5, #CPU_REG] + movs r12, r12 lsr #16 + biceq r8, r8, #O_FLAG + biceq r8, r8, #C_FLAG + orrne r8, r8, #O_FLAG + orrne r8, r8, #C_FLAG + mov pc, r11 + +push_d8 CPUWORK #3 + GETPC8 + ldrh r2, [r9, #CPU_SP] + ldr r3, [r9, #CPU_SS_BASE] + subs r2, r2, #2 + addcc r2, r2, #&10000 + mov r0, r0 lsl #24 + mov r1, r0 asr #24 + strh r2, [r9, #CPU_SP] + add r0, r2, r3 + mov lr, r11 + b i286_memorywrite_w + +imul_r_ea_d8 REG16EA r5, #21, #24 + mov r4, r0, lsl #16 + GETPC8 + mov r0, r0, lsl #24 + mov r4, r4, asr #16 + mov r0, r0, asr #24 + mul r1, r0, r4 + add r12, r1, #&8000 + strh r1, [r5, #CPU_REG] + movs r12, r12 lsr #16 + biceq r8, r8, #O_FLAG + biceq r8, r8, #C_FLAG + orrne r8, r8, #O_FLAG + orrne r8, r8, #C_FLAG + mov pc, r11 + +insb ldrh r0, [r9, #CPU_DX] + bl iocore_inp8 + ldrh r2, [r9, #CPU_DI] + ldr r3, [r9, #CPU_ES_BASE] + mov r1, r0 + add r0, r2, r3 + tst r8, #D_FLAG + addeq r2, r2, #1 + subne r2, r2, #1 + mov lr, r11 + strh r2, [r9, #CPU_DI] + b i286_memorywrite + +insw ldrh r0, [r9, #CPU_DX] + bl iocore_inp16 + ldrh r2, [r9, #CPU_DI] + ldr r3, [r9, #CPU_ES_BASE] + mov r1, r0 + add r0, r2, r3 + tst r8, #D_FLAG + addeq r2, r2, #2 + subne r2, r2, #2 + mov lr, r11 + strh r2, [r9, #CPU_DI] + b i286_memorywrite_w + +outsb ldrh r1, [r9, #CPU_SI] + ldr r2, [r9, #CPU_DS_FIX] + add r0, r1, r2 + tst r8, #D_FLAG + addeq r1, r1, #1 + subne r1, r1, #1 + strh r1, [r9, #CPU_SI] + bl i286_memoryread + mov r1, r0 + ldr r0, [r9, #CPU_DX] + mov lr, r11 + b iocore_out8 + +outsw ldrh r1, [r9, #CPU_SI] + ldr r2, [r9, #CPU_DS_FIX] + add r0, r1, r2 + tst r8, #D_FLAG + addeq r1, r1, #2 + subne r1, r1, #2 + strh r1, [r9, #CPU_SI] + bl i286_memoryread_w + mov r1, r0 + ldr r0, [r9, #CPU_DX] + mov lr, r11 + b iocore_out16 + +jle_short tst r8, #Z_FLAG + bne jmps +jl_short eor r0, r8, r8 lsr #4 + tst r0, #S_FLAG + bne jmps +nojmps CPUWORK #2 + add r8, r8, #(1 << 16) + mov pc, r11 + +jnle_short tst r8, #Z_FLAG + bne jmps +jnl_short eor r0, r8, r8 lsr #4 + tst r0, #S_FLAG + bne nojmps +jmps JMPS #7 + + xchg_ea_r8 EAREG8 r6 cmp r0, #&c0 bcc xchgear8_1 @@ -374,7 +668,638 @@ mov_r16_ea REG16EA r5, #2, #5 ldrh r0, [r5, #CPU_REG] mov pc, r11 +mov_ea_seg GETPC8 + and r1, r0, #(3 << 3) + add r1, r9, r1 lsr #2 + ldrh r5, [r1, #CPU_REG] + cmp r0, #&c0 + bcc measegm + CPUWORK #2 + R16DST r0, r4 + strh r5, [r4, #CPU_REG] + mov pc, r11 +measegm CPUWORK #3 + bl i286a_ea + mov r1, r5 + mov lr, r11 + b i286_memorywrite_w + +lea_r16_ea CPUWORK #3 + GETPC8 + cmp r0, #&c0 + bcs leareg + R8DST r0, r5 + bl i286a_lea + strh r0, [r5, #CPU_REG] + mov pc, r11 +leareg mov r6, #6 + sub r8, r8, #(2 << 16) + b i286a_localint + + +pop_ea POP #5 + mov r4, r0 + GETPC8 + cmp r0, #&c0 + bcs popreg + bl i286a_ea + mov r1, r4 + mov lr, r11 + b i286_memorywrite_w +popreg R16DST r0, r1 + ldrh r4, [r1, #CPU_REG] + mov pc, r11 + + +cbw CPUWORK #2 + ldrb r0, [r9, #CPU_AL] + mov r1, r0 lsl #24 + mov r0, r1 asr #31 + strb r0, [r9, #CPU_AH] + mov pc, r11 + +cwd CPUWORK #2 + ldrb r0, [r9, #CPU_AH] + mov r1, r0 lsl #24 + mov r0, r1 asr #31 + strh r0, [r9, #CPU_DX] + mov pc, r11 + +call_far CPUWORK #13 + ldrh r1, [r9, #CPU_CS] + ldrh r4, [r9, #CPU_SP] + ldr r5, [r9, #CPU_SS_BASE] + mov r4, r4 lsl #16 + sub r4, r4, #(2 << 16) + add r0, r5, r4 lsr #16 + bl i286_memorywrite_w + add r12, r8, #(4 << 16) + sub r4, r4, #(2 << 16) + mov r1, r12 lsr #16 + add r0, r5, r4 lsr #16 + bl i286_memorywrite_w + ldr r5, [r9, #CPU_CS_BASE] + strh r4, [r9, #CPU_SP] + add r0, r5, r8 lsr #16 + bl i286_memoryread_w + add r8, r8, #(2 << 16) + mov r4, r0 lsl #16 + add r0, r5, r8 lsr #16 + bl i286_memoryread_w + mov r1, r0 lsl #4 + strh r0, [r9, #CPU_CS] + str r1, [r9, #CPU_CS_BASE] + mov r0, r8 lsl #16 + orr r8, r4, r0 lsr #16 + mov pc, r11 + +wait CPUWORK #2 + mov pc, r11 + +pushf CPUWORK #3 + ldrh r1, [r9, #CPU_SP] + ldr r2, [r9, #CPU_SS_BASE] + sub r0, r1, #2 + mov r3, r0 lsl #16 + strh r0, [r9, #CPU_SP] + add r0, r2, r3 lsr #16 + mov r1, r8 + mov lr, r11 + b i286_memorywrite_w + +sahf CPUWORK #2 + ldrb r0, [r9, #CPU_AH] + bic r8, r8, #&ff + orr r8, r0, r8 + mov pc, r11 + +lahf CPUWORK #2 + strb r8, [r9, #CPU_AH] + mov pc, r11 + + +mov_al_m8 CPUWORK #5 + ldr r5, [r9, #CPU_DS_FIX] + GETPC16 + add r0, r5, r0 + bl i286_memoryread + strb r0, [r9, #CPU_AL] + mov pc, r11 + +mov_ax_m16 CPUWORK #5 + ldr r5, [r9, #CPU_DS_FIX] + GETPC16 + add r0, r5, r0 + bl i286_memoryread_w + strh r0, [r9, #CPU_AX] + mov pc, r11 + +mov_m8_al CPUWORK #5 + ldr r5, [r9, #CPU_DS_FIX] + GETPC16 + ldrb r1, [r9, #CPU_AL] + add r0, r5, r0 + mov lr, r11 + b i286_memorywrite + +mov_m16_ax CPUWORK #5 + ldr r5, [r9, #CPU_DS_FIX] + GETPC16 + ldrh r1, [r9, #CPU_AX] + add r0, r5, r0 + mov lr, r11 + b i286_memorywrite_w + +movsb CPUWORK #5 + ldr r0, [r9, #CPU_DS_FIX] + ldrh r5, [r9, #CPU_SI] + add r0, r5, r0 + bl i286_memoryread + ldr r2, [r9, #CPU_ES_BASE] + ldrh r3, [r9, #CPU_DI] + and r12, r8, #D_FLAG + mov r1, r0 + mov r12, r12 lsr #(10 - 1) + add r0, r2, r3 + add r2, r12, #-1 + mov lr, r11 + add r5, r2, r5 + add r3, r2, r3 + strh r5, [r9, #CPU_SI] + strh r3, [r9, #CPU_DI] + b i286_memorywrite + +movsw CPUWORK #5 + ldr r0, [r9, #CPU_DS_FIX] + ldrh r5, [r9, #CPU_SI] + add r0, r5, r0 + bl i286_memoryread_w + ldr r2, [r9, #CPU_ES_BASE] + ldrh r3, [r9, #CPU_DI] + and r12, r8, #D_FLAG + mov r1, r0 + mov r12, r12 lsr #(10 - 2) + add r0, r2, r3 + add r2, r12, #-2 + mov lr, r11 + add r5, r2, r5 + add r3, r2, r3 + strh r5, [r9, #CPU_SI] + strh r3, [r9, #CPU_DI] + b i286_memorywrite_w + +cmpsb CPUWORK #8 + ldr r0, [r9, #CPU_DS_FIX] + ldrh r5, [r9, #CPU_SI] + add r0, r5, r0 + bl i286_memoryread + ldr r2, [r9, #CPU_ES_BASE] + ldrh r3, [r9, #CPU_DI] + mov r6, r0 + and r12, r8, #D_FLAG + mov r12, r12 lsr #(10 - 1) + add r0, r2, r3 + add r2, r12, #-1 + add r5, r2, r5 + add r3, r2, r3 + strh r5, [r9, #CPU_SI] + strh r3, [r9, #CPU_DI] + bl i286_memoryread + SUB8 r6, r0 + mov pc, r11 + +cmpsw CPUWORK #8 + ldr r0, [r9, #CPU_DS_FIX] + ldrh r5, [r9, #CPU_SI] + add r0, r5, r0 + bl i286_memoryread_w + ldr r2, [r9, #CPU_ES_BASE] + ldrh r3, [r9, #CPU_DI] + mov r6, r0 + and r12, r8, #D_FLAG + mov r12, r12 lsr #(10 - 2) + add r0, r2, r3 + add r2, r12, #-2 + add r5, r2, r5 + add r3, r2, r3 + strh r5, [r9, #CPU_SI] + strh r3, [r9, #CPU_DI] + bl i286_memoryread_w + SUB16 r6, r0 + mov pc, r11 + +stosb CPUWORK #3 + ldr r0, [r9, #CPU_ES_BASE] + ldrb r1, [r9, #CPU_AL] + ldrh r2, [r9, #CPU_DI] + add r0, r2, r0 + tst r8, #D_FLAG + addeq r2, r2, #1 + subne r2, r2, #1 + strh r2, [r9, #CPU_DI] + mov lr, r11 + b i286_memorywrite + +stosw CPUWORK #3 + ldr r0, [r9, #CPU_ES_BASE] + ldrh r1, [r9, #CPU_AX] + ldrh r2, [r9, #CPU_DI] + add r0, r2, r0 + tst r8, #D_FLAG + addeq r2, r2, #2 + subne r2, r2, #2 + strh r2, [r9, #CPU_DI] + mov lr, r11 + b i286_memorywrite_w + +lodsb CPUWORK #5 + ldr r0, [r9, #CPU_DS_FIX] + ldrh r5, [r9, #CPU_SI] + add r0, r5, r0 + bl i286_memoryread + tst r8, #D_FLAG + addeq r5, r5, #1 + subne r5, r5, #1 + strb r0, [r9, #CPU_AL] + strh r5, [r9, #CPU_SI] + mov pc, r11 + +lodsw CPUWORK #5 + ldr r0, [r9, #CPU_DS_FIX] + ldrh r5, [r9, #CPU_SI] + add r0, r5, r0 + bl i286_memoryread_w + tst r8, #D_FLAG + addeq r5, r5, #2 + subne r5, r5, #2 + strh r0, [r9, #CPU_AX] + strh r5, [r9, #CPU_SI] + mov pc, r11 + +scasb CPUWORK #7 + ldr r0, [r9, #CPU_DS_FIX] + ldrh r5, [r9, #CPU_SI] + add r0, r5, r0 + bl i286_memoryread + tst r8, #D_FLAG + addeq r5, r5, #1 + subne r5, r5, #1 + strh r5, [r9, #CPU_SI] + ldrb r5, [r9, #CPU_AL] + SUB8 r5, r0 + mov pc, r11 + +scasw CPUWORK #7 + ldr r0, [r9, #CPU_DS_FIX] + ldrh r5, [r9, #CPU_SI] + add r0, r5, r0 + bl i286_memoryread_w + tst r8, #D_FLAG + addeq r5, r5, #2 + subne r5, r5, #2 + strh r5, [r9, #CPU_SI] + ldrh r5, [r9, #CPU_AX] + SUB16 r5, r0 + mov pc, r11 + + +ret_near_d16 CPUWORK #11 + GETPC16 + ldrh r1, [r9, #CPU_SP] + ldr r2, [r9, #CPU_SS_BASE] + add r3, r0, r1 + add r0, r1, r2 + add r3, r3, #2 + strh r3, [r9, #CPU_SP] + bl i286_memoryread_w + mov r8, r8 lsl #16 + mov r8, r8 lsr #16 + orr r8, r8, r0 lsl #16 + mov pc, r11 + +ret_near CPUWORK #11 + ldrh r4, [r9, #CPU_SP] + ldr r0, [r9, #CPU_SS_BASE] + add r0, r4, r0 + add r4, r4, #2 + strh r4, [r9, #CPU_SP] + bl i286_memoryread_w + mov r8, r8 lsl #16 + mov r8, r8 lsr #16 + orr r8, r8, r0 lsl #16 + mov pc, r11 + +mov_ea8_d8 GETPC16 + and r1, r0, #&ff + mov r4, r0, lsr #8 + cmp r1, #&c0 + bcs med8_r + bl i286a_ea + mov r1, r4 + mov lr, r11 + b i286_memorywrite +med8_r R8DST r0, r1 + ldrb r4, [r1, #CPU_REG] + mov pc, r11 + +mov_ea16_d16 GETPC8 + cmp r0, #&c0 + bcs med16_r + bl i286a_ea + mov r4, r0 + GETPC16 + mov r1, r0 + mov r0, r4 + mov lr, r11 + b i286_memorywrite_w +med16_r R16DST r0, r4 + GETPC16 + ldrh r0, [r4, #CPU_REG] + mov pc, r11 + +leave CPUWORK #5 + ldrh r4, [r9, #CPU_BP] + ldr r0, [r9, #CPU_SS_BASE] + add r0, r4, r0 + bl i286_memoryread_w + add r4, r4, #2 + strh r0, [r9, #CPU_BP] + strh r4, [r9, #CPU_SP] + mov pc, r11 + +ret_far_d16 CPUWORK #15 + GETPC16 + mov r6, r0 + ldrh r4, [r9, #CPU_SP] + ldr r5, [r9, #CPU_SS_BASE] + add r0, r4, r5 + add r4, r4, #2 + bl i286_memoryread_w + mov r8, r8 lsl #16 + mov r8, r8 lsr #16 + orr r8, r8, r0 lsl #16 + bic r4, r4, #(1 << 16) + add r0, r4, r5 + add r4, r4, #2 + bl i286_memoryread_w + add r4, r6, r4 + mov r1, r0 lsl #4 + strh r4, [r9, #CPU_SP] + strh r0, [r9, #CPU_CS] + str r1, [r9, #CPU_CS_BASE] + mov pc, r11 + +ret_far CPUWORK #15 + ldrh r4, [r9, #CPU_SP] + ldr r5, [r9, #CPU_SS_BASE] + add r0, r4, r5 + add r4, r4, #2 + bl i286_memoryread_w + mov r8, r8 lsl #16 + mov r8, r8 lsr #16 + orr r8, r8, r0 lsl #16 + bic r4, r4, #(1 << 16) + add r0, r4, r5 + add r4, r4, #2 + bl i286_memoryread_w + mov r1, r0 lsl #4 + strh r4, [r9, #CPU_SP] + strh r0, [r9, #CPU_CS] + str r1, [r9, #CPU_CS_BASE] + mov pc, r11 + +int_03 CPUWORK #3 + mov r6, #3 + b i286a_localint + +int_d8 CPUWORK #3 + GETPC8 + mov r6, r0 + b i286a_localint + +into CPUWORK #4 + tst r8, #O_FLAG + moveq pc, r11 + mov r6, #4 + b i286a_localint + + +aam CPUWORK #16 + GETPC8 + movs r0, r0, lsl #7 + beq aamzero + ldrb r1, [r9, #CPU_AL] + mov r2, #&80 + mov r3, #0 +aamlp cmp r1, r0 + subcs r1, r1, r0 + orrcs r3, r2, r3 + movs r2, r2 lsr #1 + bne aamlp + bic r8, r8, #(S_FLAG + Z_FLAG + P_FLAG) + ldrb r2, [r10, r1] + and r2, r2, #P_FLAG + orr r8, r2, r8 + orr r1, r1, r3 lsl #8 + movs r2, r1 lsl #16 + orreq r8, r8, #Z_FLAG + orrmi r8, r8, #S_FLAG + strh r1, [r9, #CPU_AX] + mov pc, r11 +aamzero sub r8, r8, #(2 << 16) + mov r6, #0 + b i286a_localint + +aad CPUWORK #14 + GETPC8 + ldrh r1, [r9, #CPU_AX] + bic r8, r8, #(S_FLAG + Z_FLAG + P_FLAG) + mov r2, r1 lsr #8 + mla r3, r2, r0, r1 + and r1, r3, #&ff + ldrb r2, [r10, r1] + strh r1, [r9, #CPU_AX] + orr r8, r2, r8 + mov pc, r11 + +setalc CPUWORK #2 + mov r0, r8 lsr #31 + mov r0, r0 asr #31 + strb r0, [r9, #CPU_AL] + mov pc, r11 + +xlat CPUWORK #5 + ldrb r0, [r9, #CPU_AL] + ldrh r1, [r9, #CPU_BX] + ldr r2, [r9, #CPU_DS_FIX] + add r0, r1, r0 + bic r0, r0, #(1 << 16) + add r0, r2, r0 + bl i286_memoryread + strb r0, [r9, #CPU_AL] + mov pc, r11 + +esc CPUWORK #2 + GETPC8 + cmp r0, #&c0 + movcs pc, r11 + mov lr, r11 + b i286a_ea + + +loopnz ldrh r0, [r9, #CPU_CX] + subs r0, r0, #1 + strh r0, [r9, #CPU_CX] + beq lpnznoj + tst r8, #Z_FLAG + bne lpnznoj + JMPS #8 +lpnznoj CPUWORK #4 + add r8, r8, #(1 << 16) + mov pc, r11 + +loopz ldrh r0, [r9, #CPU_CX] + subs r0, r0, #1 + strh r0, [r9, #CPU_CX] + beq lpznoj + tst r8, #Z_FLAG + beq lpnznoj + JMPS #8 +lpznoj CPUWORK #4 + add r8, r8, #(1 << 16) + mov pc, r11 + +loop ldrh r0, [r9, #CPU_CX] + subs r0, r0, #1 + strh r0, [r9, #CPU_CX] + beq lpnoj + JMPS #8 +lpnoj CPUWORK #4 + add r8, r8, #(1 << 16) + mov pc, r11 + +jcxz ldrh r0, [r9, #CPU_CX] + cmp r0, #0 + beq jcxzj + CPUWORK #4 + add r8, r8, #(1 << 16) + mov pc, r11 +jcxzj JMPS #8 + +in_al_d8 CPUWORK #5 + GETPC8 + bl iocore_inp8 + strb r0, [r9, #CPU_AL] + mov pc, r11 + +in_ax_d8 CPUWORK #5 + GETPC8 + bl iocore_inp16 + strh r0, [r9, #CPU_AX] + mov pc, r11 + +out_d8_al CPUWORK #3 + GETPC8 + ldrb r1, [r9, #CPU_AL] + mov lr, r11 + b iocore_out8 + +out_d8_ax CPUWORK #3 + GETPC8 + ldrh r1, [r9, #CPU_AX] + mov lr, r11 + b iocore_out16 + +call_near CPUWORK #7 + GETPC16 + ldrh r2, [r9, #CPU_SP] + ldr r3, [r9, #CPU_SS_BASE] + sub r1, r2, #2 + mov r2, r1 lsl #16 + strh r1, [r9, #CPU_SP] + mov r1, r8 lsr #16 + add r8, r8, r0 lsl #16 + add r0, r3, r2 lsr #16 + mov lr, r11 + b i286_memorywrite_w + +jmp_near CPUWORK #7 + GETPC16 + add r8, r8, r0 lsl #16 + mov pc, r11 + +jmp_far CPUWORK #11 + ldr r4, [r9, #CPU_CS_BASE] + add r0, r4, r8 lsr #16 + bl i286_memoryread_w + add r8, r8, #(2 << 16) + mov r1, r0, lsl #16 + add r0, r4, r8 lsr #16 + mov r8, r8, lsl #16 + orr r8, r0, r8 lsr #16 + bl i286_memoryread_w + mov r1, r0 lsl #4 + strh r0, [r9, #CPU_CS] + str r1, [r9, #CPU_CS_BASE] + mov pc, r11 + +in_al_dx CPUWORK #5 + ldrh r0, [r9, #CPU_DX] + bl iocore_inp8 + strb r0, [r9, #CPU_AL] + mov pc, r11 + +in_ax_dx CPUWORK #5 + ldrh r0, [r9, #CPU_DX] + bl iocore_inp16 + strh r0, [r9, #CPU_AX] + mov pc, r11 + +out_dx_al CPUWORK #3 + ldrb r1, [r9, #CPU_AL] + ldrh r0, [r9, #CPU_DX] + mov lr, r11 + b iocore_out8 + +out_dx_ax CPUWORK #3 + ldrh r1, [r9, #CPU_AX] + ldrh r0, [r9, #CPU_DX] + mov lr, r11 + b iocore_out16 + + +lock CPUWORK #2 + mov pc, r11 +hlt CREMSET #-1 + sub r8, r8, #(1 << 16) + mov pc, r11 + +cmc CPUWORK #2 + eor r8, r8, #C_FLAG + mov pc, r11 + +clc CPUWORK #2 + bic r8, r8, #C_FLAG + mov pc, r11 + +stc CPUWORK #2 + orr r8, r8, #C_FLAG + mov pc, r11 + +cli CPUWORK #3 + mov r0, #0 + bic r8, r8, #I_FLAG + strb r0, [r9, #CPU_TRAP] + mov pc, r11 + +cld CPUWORK #2 + bic r8, r8, #D_FLAG + mov pc, r11 + +std CPUWORK #2 + orr r8, r8, #D_FLAG + mov pc, r11 @@ -506,6 +1431,10 @@ optbl1 dcd add_ea_r8 dcd 0 ; popa dcd 0 ; bound dcd 0 ; arpl + dcd 0 ; reserved + dcd 0 ; reserved + dcd 0 ; reserved + dcd 0 ; reserved dcd 0 ; push_d16 dcd 0 ; imul_reg_ea_d16 dcd 0 ; push_d8 @@ -515,18 +1444,18 @@ optbl1 dcd add_ea_r8 dcd 0 ; outsb dcd 0 ; outsw - dcd 0 ; jo_short - dcd 0 ; jno_short - dcd 0 ; jc_short - dcd 0 ; jnc_short - dcd 0 ; jz_short - dcd 0 ; jnz_short - dcd 0 ; jna_short - dcd 0 ; ja_short - dcd 0 ; js_short - dcd 0 ; jns_short - dcd 0 ; jp_short - dcd 0 ; jnp_short + dcd jo_short + dcd jno_short + dcd jc_short + dcd jnc_short + dcd jz_short + dcd jnz_short + dcd jna_short + dcd ja_short + dcd js_short + dcd jns_short + dcd jp_short + dcd jnp_short dcd 0 ; jl_short dcd 0 ; jnl_short dcd 0 ; jle_short @@ -534,6 +1463,7 @@ optbl1 dcd add_ea_r8 dcd 0 ; calc_ea8_i8 dcd 0 ; calc_ea16_i16 + dcd 0 ; calc_ea8_i8 dcd 0 ; calc_ea16_i8 dcd test_ea_r8 dcd test_ea_r16 @@ -556,19 +1486,19 @@ optbl1 dcd add_ea_r8 dcd xchg_ax_bp dcd xchg_ax_si dcd xchg_ax_di - dcd 0 ; cbw - dcd 0 ; cwd + dcd cbw + dcd cwd dcd 0 ; call_far - dcd 0 ; wait + dcd wait dcd 0 ; pushf dcd 0 ; popf - dcd 0 ; sahf - dcd 0 ; lahf + dcd sahf + dcd lahf - dcd 0 ; mov_al_m8 - dcd 0 ; mov_ax_m16 - dcd 0 ; mov_m8_al - dcd 0 ; mov_m16_ax + dcd mov_al_m8 + dcd mov_ax_m16 + dcd mov_m8_al + dcd mov_m16_ax dcd 0 ; movsb dcd 0 ; movsw dcd 0 ; cmpsb @@ -644,7 +1574,7 @@ optbl1 dcd add_ea_r8 dcd 0 ; call_near dcd 0 ; jmp_near dcd 0 ; jmp_far - dcd 0 ; jmp_short + dcd jmp_short dcd 0 ; in_al_dx dcd 0 ; in_ax_dx dcd 0 ; out_dx_al