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millfork/include/keyboard.mfk
2019-06-26 15:51:09 +02:00

101 lines
1.3 KiB
Plaintext

#if ATARI_8
const byte KEY_ENTER = 155
#else
const byte KEY_ENTER = 13
#endif
#if CBM_64
noinline asm byte readkey() {
__read_key__start:
LDA $C6
BEQ __read_key__start
JMP $E5B4
}
#define OK = 1
#endif
#if CBM_128
noinline asm byte readkey() {
__read_key__start:
LDA $D0
BEQ __read_key__start
LDX #0
JMP $C244
}
#define OK = 1
#endif
#if CBM_264
noinline asm byte readkey() {
__read_key__start:
LDA $EF
BEQ __read_key__start
LDX #0
JMP $D8D5
}
#define OK = 1
#endif
#if CBM_VIC
noinline asm byte readkey() {
__read_key__start:
LDA $C6
BEQ __read_key__start
JMP $E5CF
}
#define OK = 1
#endif
#if ATARI_8
noinline asm byte readkey() {
lda #$C
sta $2A
lda $E425
pha
lda $E424
pha
rts
}
#define OK = 1
#endif
#if NEC_PC_88
asm byte readkey() @$3583 extern
#define OK = 1
#endif
#if AMSTRAD_CPC
asm byte readkey() @$BB06 extern
#define OK = 1
#endif
#if ZX_SPECTRUM
#pragma zilog_syntax
asm byte readkey() {
ld hl,23560
ld (hl),0
__readkey__start:
ld a,(hl)
or a
jr z,__readkey__start
? ret
}
#define OK = 1
#endif
#if not(OK)
#if KEYBOARD
#warn keyboard module is not yet supported
#else
#warn keyboard module is not supported on targets without keyboard
#endif
#endif