mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-11-17 18:01:13 +00:00
718112a8fe
Currently none of these is being used, but eventually they will, once more code gets ported over. So it's better to have them right away and avoid editing the project file too much, only to revert that later.
101 lines
2.2 KiB
C
101 lines
2.2 KiB
C
|
|
#include "Hes_Emu.h"
|
|
|
|
#include "blargg_source.h"
|
|
|
|
int Hes_Emu::cpu_read( hes_addr_t addr )
|
|
{
|
|
check( addr <= 0xFFFF );
|
|
int result = *cpu::get_code( addr );
|
|
if ( mmr [addr >> page_shift] == 0xFF )
|
|
result = cpu_read_( addr );
|
|
return result;
|
|
}
|
|
|
|
void Hes_Emu::cpu_write( hes_addr_t addr, int data )
|
|
{
|
|
check( addr <= 0xFFFF );
|
|
byte* out = write_pages [addr >> page_shift];
|
|
addr &= page_size - 1;
|
|
if ( out )
|
|
out [addr] = data;
|
|
else if ( mmr [addr >> page_shift] == 0xFF )
|
|
cpu_write_( addr, data );
|
|
}
|
|
|
|
inline byte const* Hes_Emu::cpu_set_mmr( int page, int bank )
|
|
{
|
|
write_pages [page] = 0;
|
|
if ( bank < 0x80 )
|
|
return rom.at_addr( bank * (blargg_long) page_size );
|
|
|
|
byte* data = 0;
|
|
switch ( bank )
|
|
{
|
|
case 0xF8:
|
|
data = cpu::ram;
|
|
break;
|
|
|
|
case 0xF9:
|
|
case 0xFA:
|
|
case 0xFB:
|
|
data = &sgx [(bank - 0xF9) * page_size];
|
|
break;
|
|
|
|
default:
|
|
if ( bank != 0xFF )
|
|
debug_printf( "Unmapped bank $%02X\n", bank );
|
|
return rom.unmapped();
|
|
}
|
|
|
|
write_pages [page] = data;
|
|
return data;
|
|
}
|
|
|
|
#define CPU_READ_FAST( cpu, addr, time, out ) \
|
|
CPU_READ_FAST_( STATIC_CAST(Hes_Emu*,cpu), addr, time, out )
|
|
|
|
#define CPU_READ_FAST_( cpu, addr, time, out ) \
|
|
{\
|
|
out = READ_PROG( addr );\
|
|
if ( mmr [addr >> page_shift] == 0xFF )\
|
|
{\
|
|
FLUSH_TIME();\
|
|
out = cpu->cpu_read_( addr );\
|
|
CACHE_TIME();\
|
|
}\
|
|
}
|
|
|
|
#define CPU_WRITE_FAST( cpu, addr, data, time ) \
|
|
CPU_WRITE_FAST_( STATIC_CAST(Hes_Emu*,cpu), addr, data, time )
|
|
|
|
#define CPU_WRITE_FAST_( cpu, addr, data, time ) \
|
|
{\
|
|
byte* out = cpu->write_pages [addr >> page_shift];\
|
|
addr &= page_size - 1;\
|
|
if ( out )\
|
|
{\
|
|
out [addr] = data;\
|
|
}\
|
|
else if ( mmr [addr >> page_shift] == 0xFF )\
|
|
{\
|
|
FLUSH_TIME();\
|
|
cpu->cpu_write_( addr, data );\
|
|
CACHE_TIME();\
|
|
}\
|
|
}
|
|
|
|
#define CPU_READ( cpu, addr, time ) \
|
|
STATIC_CAST(Hes_Emu*,cpu)->cpu_read( addr )
|
|
|
|
#define CPU_WRITE( cpu, addr, data, time ) \
|
|
STATIC_CAST(Hes_Emu*,cpu)->cpu_write( addr, data )
|
|
|
|
#define CPU_WRITE_VDP( cpu, addr, data, time ) \
|
|
STATIC_CAST(Hes_Emu*,cpu)->cpu_write_vdp( addr, data )
|
|
|
|
#define CPU_SET_MMR( cpu, page, bank ) \
|
|
STATIC_CAST(Hes_Emu*,cpu)->cpu_set_mmr( page, bank )
|
|
|
|
#define CPU_DONE( cpu, time, result_out ) \
|
|
result_out = STATIC_CAST(Hes_Emu*,cpu)->cpu_done()
|