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cc65/libsrc/kim1/tapeio.s
2022-06-04 13:00:48 -07:00

40 lines
992 B
ArmAsm

;
; int __fastcall__ loadt (unsigned char id);
; int __fastcall__ dumpt (unsigned char id, void* start_addr, void* end_addr);
;
.include "kim1.inc"
.import popa, popax, return0, return1
.export _loadt, _dumpt
.segment "CODE"
.proc _loadt: near
sta ID ; Tape record ID to P1L
jsr LOADT ; Read data from tape
bcs error
jmp return0 ; Return 0 if sucessful
error: jmp return1 ; or 1 if not
.endproc
.proc _dumpt: near
sta EAL ; End address
stx EAH
jsr popax
sta SAL ; Start address
stx SAH
jsr popa
sta ID ; Tape Record ID
ldx #$00
jsr DUMPT ; Write data to tape
bcs error
jmp return0 ; Return 0 if sucessful
error: jmp return1 ; or 1 if not
.endproc