rogue-like/src/debug.asm

48 lines
896 B
NASM

.include "memory.inc"
; nb of bytes to be displayed in DBG_TRACES[0]
.export DBG_TRACE
; bytes to be displayed
.export DBG_TRACES
.CODE
.define STROUT $DB3A ; Applesoft: OUTPUTS AY-POINTED NULL TERMINATED STRING
.define LINPTR $ED24 ; Applesoft: Displays the number A(high)X(low) in decimal
; Traces the number of TRACES requested
DBG_TRACE:
ldy #>str_trace
lda #<str_trace
jsr STROUT
lda #0
loop:
tax
inx
txa
pha
lda DBG_TRACES, X
tax
lda #0
jsr LINPTR
ldy #>str_space
lda #<str_space
jsr STROUT
pla
cmp DBG_TRACES
bne loop
rts
.DATA
str_trace: .byte 13, "TRACE: ", 0
str_space: .byte " ", 0
.BSS
DBG_TRACES: .res 7 ; bytes to be displayed by TRACE