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millfork/include/keyboard.mfk
2020-04-08 11:11:25 +02:00

154 lines
2.1 KiB
Plaintext

#if ATARI_8
const byte KEY_ENTER = 155
#else
const byte KEY_ENTER = 13
#endif
#if CBM_64
noinline asm byte readkey() {
LDA #0
STA $C6
__read_key__start:
LDA $C6
BEQ __read_key__start
JMP $E5B4
}
#define OK = 1
#endif
#if CBM_128
noinline asm byte readkey() {
LDA #0
STA $D0
__read_key__start:
LDA $D0
BEQ __read_key__start
LDX #0
JMP $C244
}
#define OK = 1
#endif
#if CBM_264
noinline asm byte readkey() {
LDA #0
STA $EF
__read_key__start:
LDA $EF
BEQ __read_key__start
LDX #0
JMP $D8D5
}
#define OK = 1
#endif
#if CBM_VIC
noinline asm byte readkey() {
LDA #0
STA $C6
__read_key__start:
LDA $C6
BEQ __read_key__start
JMP $E5CF
}
#define OK = 1
#endif
#if CBM_PET
#if not(PET2001_SUPPORT) && not(PET3000_SUPPORT) && not(PET4000_SUPPORT)
#error At least one of PET2000_SUPPORT, PET3000_SUPPORT, PET4000_SUPPORT has to be defined
#endif
noinline asm byte readkey() {
#if PET2001_SUPPORT && (PET3000_SUPPORT || PET4000_SUPPORT)
JSR is_pet2000
BNE __read_key__start_new
#endif
#if PET2001_SUPPORT
// ROM 1.0:
LDA #0
STA $20D
__read_key__start1:
LDA $20D
BEQ __read_key__start1
LDA $20F
RTS
#endif
#if PET3000_SUPPORT || PET4000_SUPPORT
// ROM 2.0 and above:
__read_key__start_new:
LDA #0
STA $9E
__read_key__start2:
LDA $9E
BEQ __read_key__start2
LDA $026F
RTS
#endif
}
#define OK = 1
#endif
#if ATARI_8
noinline asm byte readkey() {
lda #$C
sta $2A
lda $E425
pha
lda $E424
pha
rts
}
#define OK = 1
#endif
#if APPLE_2
asm byte readkey() @$FD0C extern
#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