void sound_restore()
{
int size;
uint8 *ptr, *temp;
/* save YM context */
if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
{
size = YM2612GetContextSize();
ptr = YM2612GetContextPtr();
}
else
{
size = YM2413GetContextSize();
ptr = YM2413GetContextPtr();
}
temp = malloc(size);
if (temp)
{
memcpy(temp, ptr, size);
}
/* reinitialize sound chips */
sound_init();
/* restore YM context */
if (temp)
{
if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
{
YM2612Restore(temp);
}
else
{
YM2413Restore(temp);
}
free(temp);
}
}
int state_load(unsigned char *buffer)
{
/* buffer size */
int bufferptr = 0;
/* uncompress savestate */
unsigned long inbytes, outbytes;
memcpy(&inbytes, buffer, 4);
outbytes = STATE_SIZE;
uncompress ((Bytef *)state, &outbytes, (Bytef *)(buffer + 4), inbytes);
/* version check */
char version[16];
load_param(version,16);
if (strncmp(version,STATE_VERSION,16))
{
return 0;
}
/* reset system */
system_reset();
m68k_memory_map[0].base = default_rom;
// GENESIS
load_param(work_ram, sizeof(work_ram));
load_param(zram, sizeof(zram));
load_param(&zbusreq, sizeof(zbusreq));
load_param(&zreset, sizeof(zreset));
load_param(&zbank, sizeof(zbank));
zbusack = 1 ^(zbusreq & zreset);
// IO
load_param(io_reg, sizeof(io_reg));
// VDP
uint8 temp_reg[0x20];
load_param(sat, sizeof(sat));
load_param(vram, sizeof(vram));
load_param(cram, sizeof(cram));
load_param(vsram, sizeof(vsram));
load_param(temp_reg, sizeof(temp_reg));
load_param(&addr, sizeof(addr));
load_param(&addr_latch, sizeof(addr_latch));
load_param(&code, sizeof(code));
load_param(&pending, sizeof(pending));
load_param(&status, sizeof(status));
load_param(&dmafill, sizeof(dmafill));
load_param(&hint_pending, sizeof(hint_pending));
load_param(&vint_pending, sizeof(vint_pending));
load_param(&irq_status, sizeof(irq_status));
vdp_restore(temp_reg);
// FM
YM2612Restore(&state[bufferptr]);
bufferptr+= YM2612GetContextSize();
// PSG
load_param(SN76489_GetContextPtr(),SN76489_GetContextSize());
// 68000
uint16 tmp16;
uint32 tmp32;
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_D0, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_D1, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_D2, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_D3, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_D4, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_D5, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_D6, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_D7, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_A0, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_A1, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_A2, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_A3, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_A4, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_A5, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_A6, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_A7, tmp32);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_PC, tmp32);
load_param(&tmp16, 2); m68k_set_reg(M68K_REG_SR, tmp16);
load_param(&tmp32, 4); m68k_set_reg(M68K_REG_USP,tmp32);
// Z80
load_param(&Z80, sizeof(Z80_Regs));
return 1;
}
