Mercurial > repos > blastem
view test.s68 @ 1316:3185438e0134
Fix copy pasta error in handling of Z80 VDP port reads. HV counter reads are not illegal writes =P. Fixes immediate exit in Overdrive II, though other problems remain
author | Michael Pavone <pavone@retrodev.com> |
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date | Sat, 15 Apr 2017 21:45:19 -0700 |
parents | 3adbd97f71f2 |
children |
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dc.l $0, start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l start dc.l after dc.l after dc.l after dc.l after dc.l after dc.l after dc.l after dc.l after start: bra after after: abcd d0, d1 abcd -(a2), -(a3) add.b #42, d1 add.w d3, d4 add.l d5, (a0)+ addq.w #5, d0 addx d6, d7 addx -(a4), -(a5) and.w d5, d7 andi.l #5, (a0)+ andi #8, CCR andi #9, CCR foo: asl d0, d3 asr #3, d7 bne foo bchg #5, d0 bclr #7, d0 bset #1, d0 bsr bar btst #3, d0 chk.w #53, d7 clr d5 cmp d0, d1 bar: dbra d0, bar divs.w d5, d7 divu.w d3, d4 eor.w d0, d6 eori.l #5, d2 eori #5, ccr eori #2700, sr exg d5, d6 ext d2 illegal jmp (a0) jsr (a5) lea (a0, 8), a3 link.w a6, #32 lsl d0, d3 lsr #3, d7 move.b (a0)+, (32, a5) moveq #5, d0 move #89, ccr move sr, d0 move #2700, sr move a5, usp movem.l d0-d3/a4/a6, -(a7) movep.w d4, (40, a3) muls.w d6, d7 mulu.w d2, d4 nbcd -(a2) neg.l d7 negx.b d5 nop not.b d3 or.w d5, d7 ori.b #7, d5 ori #5, ccr ori #2700, sr pea (24, a3) reset rol.l #7, d0 rol.w d5, d0 ror.w d1, d3 roxl.l #7, d0 roxl.w d5, d0 roxr.w d1, d3 rte rtr rts sbcd d0, d1 sbcd -(a2), -(a3) slt d5 stop #3 sub.b #42, d1 sub.w d3, d4 sub.l d5, (a0)+ subq.w #5, d0 subx d6, d7 subx -(a4), -(a5) swap d6 tas (a3) trap #7 trapv tst.w (a4)+ unlk a6