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core, fix crash bug in DrZ80 (SP wrap)

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kub 2024-03-07 20:36:00 +01:00
parent 83025d7abe
commit 02d578601b
2 changed files with 3 additions and 1 deletions
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2
cpu/DrZ80/drz80.S
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@ -208,6 +208,7 @@ z80_xmap_read16: @ addr
bl z80_xmap_read8
mov r9,r0
add r0,r8,#1
bic r0,r0,#1<<16
bl z80_xmap_read8
orr r0,r9,r0,lsl #8
ldmfd sp!,{r2,r8,r9,pc}
@ -236,6 +237,7 @@ z80_xmap_write16: @ data, addr
bl z80_xmap_write8
mov r0,r8,lsr #8
add r1,r9,#1
bic r1,r1,#1<<16
bl z80_xmap_write8
ldmfd sp!,{r2,r8,r9,pc}