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Leandros/DEBUG.INC

Created March 12, 2016 20:16
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Debugging Messages in no$gmb and BGB
Raw
DEBUG.INC
IF !DEF(DEBUG_INC)
DEBUG_INC SET 1
; Prints a message to the no$gmb / bgb debugger
; Accepts a string as input, see emulator doc for support
DBGMSG: MACRO
ld d, d
jr .end\@
DW $6464
DW $0000
DB \1
.end\@:
ENDM
ENDC ; DEBUG_INC
@konsumer
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konsumer commented May 18, 2020

I tried this:

#include <gb/gb.h>
#include <gb/drawing.h>

// this allows you to debug in BGB
#define DEBUG(message)
__asm \
    ld d, d \
    jr .end \
    .dw 0x6464 \
    .dw 0x0000 \
    .ascii message \
.end: \
__endasm

// do dynamic debugging with a bank
#define DYN_DEBUG(addr, bank) \
__asm \
    ld d, d \
    jr .end
    .dw 0x6464 \
    .dw 0x0001 \
    .dw address \
    .dw bank \
.end: \
__endasm

void main () {
    gotogxy(7, 8);
    gprintf("O HAI!");
    DEBUG("O HAI");
}

and go this error:

demo.c:6: syntax error: token -> '__endasm' ; column 13
make: *** [<builtin>: demo.o] Error 1

I am using gbdk-2020.

@JL2210
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JL2210 commented May 18, 2020 •
edited
Loading

@konsumer If you're using gbdk-2020 then you can just #include <gb/bgb_emu.h> and use BGB_MESSAGE.

However, I did forget a couple backslashes. That should be fixed.

@konsumer
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konsumer commented May 18, 2020

That works great. Thanks so much!!! I didn't realize they have their own header for this. works perfectly.

#include <gb/gb.h>
#include <gb/drawing.h>
#include <gb/bgb_emu.h>

void main () {
    gotogxy(7, 8);
    gprintf("O HAI!");
    BGB_MESSAGE("O HAI!");
}

Screenshot from 2020-05-18 15-47-06

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