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28 lines
523 B
Plaintext
28 lines
523 B
Plaintext
// Routines from C16 and Plus/4 KERNAL ROM
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#if not(CBM_VIC)
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#warn vic20_kernal module should be only used on VIC-20 targets
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#endif
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// CHROUT. Write byte to default output. (If not screen, must call OPEN and CHKOUT beforehands.)
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// Input: A = Byte to write.
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asm void chrout(byte a) @$FFD2 extern
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asm void putchar(byte a) {
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JSR chrout
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LDA #0
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STA $D4
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? RTS
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}
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noinline asm byte readkey() {
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__read_key__start:
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LDA $C6
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BEQ __read_key__start
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JMP $E5CF
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}
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inline void new_line() {
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putchar(13)
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}
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