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core z80, fix cycle counting if z80 in hold on frame change

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This commit is contained in:
kub 2024-07-02 22:43:26 +02:00
parent 25559e5417
commit 2f0c5639c1
2 changed files with 6 additions and 3 deletions
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3
pico/memory.c
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@ -530,7 +530,8 @@ void NOINLINE ctl_write_z80busreq(u32 d)
{ {
if (d) if (d)
{ {
Pico.t.z80c_aim = Pico.t.z80c_cnt = z80_cycles_from_68k() + (Pico.t.z80_busdelay >> 8) + 2; Pico.t.z80c_aim = Pico.t.z80c_cnt = z80_cycles_from_68k() + 2;
Pico.t.z80c_cnt += Pico.t.z80_busdelay >> 8;
Pico.t.z80_busdelay &= 0xff; Pico.t.z80_busdelay &= 0xff;
} }
else else

6
pico/pico_int.h
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@ -201,8 +201,10 @@ extern struct DrZ80 drZ80;
#define Z80_STATE_SIZE 0x60 #define Z80_STATE_SIZE 0x60
#define z80_resetCycles() \ #define z80_resetCycles() { \
Pico.t.z80c_cnt -= Pico.t.z80c_aim, Pico.t.z80c_aim = Pico.t.z80_scanline = 0 Pico.t.z80c_cnt -= Pico.t.z80c_aim, Pico.t.z80c_aim = Pico.t.z80_scanline = 0; \
if (!Pico.m.z80Run | Pico.m.z80_reset) Pico.t.z80c_cnt = 0; \
}
#define z80_cyclesDone() \ #define z80_cyclesDone() \
(Pico.t.z80c_aim - z80_cyclesLeft) (Pico.t.z80c_aim - z80_cyclesLeft)