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core, revisit ym2612 busy flag implementation

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This commit is contained in:
kub 2024-06-22 23:12:31 +02:00
parent e948a120ed
commit f5c022a8e4
5 changed files with 24 additions and 16 deletions
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8
pico/sound/ym2612.c
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@ -2049,7 +2049,7 @@ typedef struct
UINT32 eg_timer;
UINT32 lfo_cnt;
UINT16 lfo_ampm;
UINT16 unused2;
INT16 busy_timer;
UINT32 keyon_field; // 20
UINT32 kcode_fc_sl3_3;
UINT32 reserved[2];
@ -2063,7 +2063,7 @@ typedef struct
} ym_save_addon2;
void YM2612PicoStateSave2(int tat, int tbt)
void YM2612PicoStateSave2(int tat, int tbt, int busy)
{
ym_save_addon_slot ss;
ym_save_addon2 sa2;
@ -2121,10 +2121,11 @@ void YM2612PicoStateSave2(int tat, int tbt)
sa.eg_timer = ym2612.OPN.eg_timer;
sa.lfo_cnt = ym2612.OPN.lfo_cnt;
sa.lfo_ampm = g_lfo_ampm;
sa.busy_timer = busy;
memcpy(ptr, &sa, sizeof(sa)); // 0x30 max
}
int YM2612PicoStateLoad2(int *tat, int *tbt)
int YM2612PicoStateLoad2(int *tat, int *tbt, int *busy)
{
ym_save_addon_slot ss;
ym_save_addon2 sa2;
@ -2150,6 +2151,7 @@ int YM2612PicoStateLoad2(int *tat, int *tbt)
g_lfo_ampm = sa.lfo_ampm;
if (tat != NULL) *tat = sa.TAT;
if (tbt != NULL) *tbt = sa.TBT;
if (busy != NULL) *busy = sa.busy_timer;
// chans 1,2,3
ptr = &ym2612.REGS[0x0b8];

4
pico/sound/ym2612.h
View file

@ -177,8 +177,8 @@ int YM2612PicoTick_(int n);
void YM2612PicoStateLoad_(void);
void *YM2612GetRegs(void);
void YM2612PicoStateSave2(int tat, int tbt);
int YM2612PicoStateLoad2(int *tat, int *tbt);
void YM2612PicoStateSave2(int tat, int tbt, int busy);
int YM2612PicoStateLoad2(int *tat, int *tbt, int *busy);
/* NB must be macros for compiling GP2X 940 code */
#ifndef __GP2X__