--- np2/i286a/i286aalu.inc 2003/12/16 21:59:07 1.3 +++ np2/i286a/i286aalu.inc 2004/01/07 12:51:29 1.7 @@ -11,9 +11,9 @@ $label mov r1, $s lsl #24 eor r12, r12, $d addcs r2, r2, #C_FLAG and r12, r12, #A_FLAG - orr r3, r2, r12 + orr r2, r2, r12 bic r8, r8, #&ff - add r8, r3, r8 + add r8, r8, r2 MEND MACRO @@ -85,9 +85,9 @@ $label mov r1, $d lsl #24 eor r12, r12, $d addcc r2, r2, #C_FLAG and r12, r12, #A_FLAG - orr r3, r2, r12 + orr r2, r2, r12 bic r8, r8, #&ff - add r8, r3, r8 + add r8, r8, r2 MEND MACRO @@ -107,9 +107,9 @@ $label mov r1, $s lsl #16 mov r1, r1 lsr #16 bicvc r8, r8, #O_FLAG and r3, r1, #&ff - eor r12, r1, $s + eor r12, r1, $d ldrb r2, [r10, r3] - eor r12, r12, $d + eor r12, r12, $s and r2, r2, #P_FLAG addcs r2, r2, #C_FLAG addeq r2, r2, #Z_FLAG @@ -207,9 +207,9 @@ $label mov r1, $d lsl #16 mov r1, r1 lsr #16 bicvc r8, r8, #O_FLAG and r3, r1, #&ff - eor r12, r1, $s + eor r12, r1, $d ldrb r2, [r10, r3] - eor r12, r12, $d + eor r12, r12, $s and r2, r2, #P_FLAG addcc r2, r2, #C_FLAG addeq r2, r2, #Z_FLAG @@ -298,7 +298,7 @@ $label sub r1, $s, #1 tst r2, #&8000 orrne r8, r8, #O_FLAG ldrb r2, [r10, r3] - movs r3, r1, lsl #16 + movs r3, r1 lsl #16 orreq r12, r12, #Z_FLAG orrmi r12, r12, #S_FLAG and r2, r2, #P_FLAG @@ -308,6 +308,55 @@ $label sub r1, $s, #1 MACRO +$label NOT8 $s +$label mvn r1, $s + MEND + + MACRO +$label NOT16 $s +$label mvn r1, $s + MEND + + + MACRO +$label NEG8 $s +$label rsb r1, $s, #0 + bic r8, r8, #O_FLAG + and r12, r1, $s + eor r2, r1, $s + bic r8, r8, #&ff + and r12, r12, #&80 + and r2, r2, #A_FLAG + orr r8, r8, r12 lsl #4 + mov r12, r1 lsl #(32 - 9) + orr r8, r8, r2 + ldrb r2, [r10, r12 lsr #(32 - 9)] + orr r8, r2, r8 + MEND + + MACRO +$label NEG16 $s +$label bic r8, r8, #&ff + rsbs r1, $s, #0 + addmi r8, r8, #C_FLAG + and r12, r1, $s + bic r8, r8, #O_FLAG + eor r2, r1, $s + and r12, r12, #&8000 + and r2, r2, #A_FLAG + orr r8, r8, r12 lsr #4 + and r12, r1, #&ff + orr r8, r8, r2 + ldrb r2, [r10, r12] + and r2, r2, #P_FLAG + orr r8, r2, r8 + movs r12, r1, lsl #16 + orreq r8, r8, #Z_FLAG + orrmi r8, r8, #S_FLAG + MEND + + + MACRO $label MUL8 $d, $s mul r1, $d, $s movs r12, r1 lsr #8 @@ -368,18 +417,18 @@ $label CPUWORK $clk strh r0, [r9, #CPU_SP] add r0, r2, r3 lsr #16 mov lr, r11 - b i286_memorywrite_w + b i286a_memorywrite_w MEND MACRO $label POP $clk -$label CPUWORK $clk - ldrh r1, [r9, #CPU_SP] +$label ldrh r1, [r9, #CPU_SP] ldr r0, [r9, #CPU_SS_BASE] + CPUWORK $clk + add r2, r1, #2 add r0, r1, r0 - add r1, r1, #2 - strh r1, [r9, #CPU_SP] - bl i286_memoryread_w + strh r2, [r9, #CPU_SP] + bl i286a_memoryread_w MEND MACRO