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starting SMS work

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@756 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-08-16 13:00:07 +00:00
parent d8f51995c4
commit 3e49ffd0bf
10 changed files with 246 additions and 80 deletions
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55
pico/sms.c Normal file
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#include "pico_int.h"
static unsigned char z80_sms_in(unsigned short p)
{
elprintf(EL_ANOMALY, "Z80 port %04x read", p);
return 0xff;
}
static void z80_sms_out(unsigned short p, unsigned char d)
{
elprintf(EL_ANOMALY, "Z80 port %04x write %02x", p, d);
}
static unsigned char MEMH_FUNC xread(unsigned short a)
{
elprintf(EL_ANOMALY, "Z80 read [%04x]", a);
return 0;
}
static void MEMH_FUNC xwrite(unsigned int a, unsigned char data)
{
elprintf(EL_ANOMALY, "Z80 write [%04x] %02x", a, data);
}
void PicoPowerMS(void)
{
}
void PicoMemSetupMS(void)
{
z80_map_set(z80_read_map, 0x0000, 0xbfff, Pico.rom, 0);
z80_map_set(z80_read_map, 0xc000, 0xdfff, Pico.zram, 0);
z80_map_set(z80_read_map, 0xe000, 0xffff, xread, 1);
z80_map_set(z80_write_map, 0x0000, 0xbfff, Pico.rom, 0);
z80_map_set(z80_write_map, 0xc000, 0xdfff, Pico.zram, 0);
z80_map_set(z80_write_map, 0xe000, 0xffff, xwrite, 1);
#ifdef _USE_DRZ80
drZ80.z80_in = z80_sms_in;
drZ80.z80_out = z80_sms_out;
#endif
#ifdef _USE_CZ80
Cz80_Set_Fetch(&CZ80, 0x0000, 0xbfff, (UINT32)Pico.rom);
Cz80_Set_Fetch(&CZ80, 0xc000, 0xdfff, (UINT32)Pico.zram);
Cz80_Set_INPort(&CZ80, z80_sms_in);
Cz80_Set_OUTPort(&CZ80, z80_sms_out);
#endif
}
void PicoFrameMS(void)
{
z80_run(OSC_NTSC / 13 / 60);
}