48 lines
1,002 B
C
48 lines
1,002 B
C
#ifndef RAM_H
|
|
#define RAM_H
|
|
|
|
/* see main.c for definition */
|
|
|
|
#ifndef RAM_FAST
|
|
static uint8 RAM[MEMSIZE]; // Definition of the emulated RAM
|
|
|
|
uint8* _RamSysAddr(uint16 address) {
|
|
if (address < CCPaddr) {
|
|
return(&RAM[address * curBank]);
|
|
} else {
|
|
return(&RAM[address]);
|
|
}
|
|
}
|
|
|
|
uint8 _RamRead(uint16 address) {
|
|
if (address < CCPaddr) {
|
|
return(RAM[address * curBank]);
|
|
} else {
|
|
return(RAM[address]);
|
|
}
|
|
}
|
|
|
|
uint16 _RamRead16(uint16 address) {
|
|
if (address < CCPaddr) {
|
|
return(RAM[address * curBank] + (RAM[(address * curBank) + 1] << 8));
|
|
} else {
|
|
return(RAM[address] + (RAM[address + 1] << 8));
|
|
}
|
|
}
|
|
|
|
void _RamWrite(uint16 address, uint8 value) {
|
|
if (address < CCPaddr) {
|
|
RAM[address * curBank] = value;
|
|
} else {
|
|
RAM[address] = value;
|
|
}
|
|
}
|
|
|
|
void _RamWrite16(uint16 address, uint16 value) {
|
|
// Z80 is a "little indian" (8 bit era joke)
|
|
_RamWrite(address, value & 0xff);
|
|
_RamWrite(address + 1, (value >> 8) & 0xff);
|
|
}
|
|
#endif
|
|
|
|
#endif
|