millfork/include/vic20_kernal.mfk

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// Routines from C16 and Plus/4 KERNAL ROM
#if not(CBM_VIC)
#warn vic20_kernal module should be only used on VIC-20 targets
#endif
// CHROUT. Write byte to default output. (If not screen, must call OPEN and CHKOUT beforehands.)
// Input: A = Byte to write.
asm void chrout(byte register(a) char) @$FFD2 !preserves_a !preserves_x !preserves_y extern
asm void putchar(byte register(a) char) {
JSR chrout
LDA #0
STA $D4
? RTS
}
inline void new_line() {
putchar(13)
}