27 lines
422 B
C
27 lines
422 B
C
|
|
#include "common.h"
|
|
|
|
void raster_wait(byte line) {
|
|
while (VIC.rasterline < line) ;
|
|
}
|
|
|
|
static byte VIC_BANK_PAGE[4] = {
|
|
0xc0, 0x80, 0x40, 0x00
|
|
};
|
|
|
|
char* get_vic_bank_start() {
|
|
return (char*)(VIC_BANK_PAGE[CIA2.pra & 3] << 8);
|
|
}
|
|
|
|
char* get_screen_memory() {
|
|
return ((VIC.addr & 0xf0) << 6) + get_vic_bank_start();
|
|
}
|
|
|
|
#ifdef __CC65__
|
|
char __fastcall__ poll_keyboard() {
|
|
asm("jmp $f142");
|
|
return __A__;
|
|
}
|
|
#endif
|
|
|