32x ASM

[ob1]

Finally,
I have found out an assembler that let me use the syntax I love :

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dc.l $06002000

for constants, no .text, or other, ...

On SegaXtreme, Saturn Dev, go to
http://www.segaxtreme.net/content/satdev/Tools.html
then SN Systems ASSH & ASMSH.
Use ASMSH

By the way, can anyone explain to me where these 2 syntaxes come from ?

[ob1]

ASMSH adds a silly header and appends a byte to the binary. I've written this tool to fix it :

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#include <stdio.h>
#include <stdlib.h>

int main(int argc, char * argv[]) {
	if (argc!=3) {
		printf("usage : asmshfix file_to_fix file_fixed");
		exit(0);
	}

	FILE *input = fopen(argv[1], "rb");
	if (input==NULL) {
		printf("Le fichier %s n'existe pas.\n", input);
		exit(1);
	}

	FILE *output = fopen(argv[2], "wb");
	if (output==NULL) {
		printf("Impossible de créer le fichier %s.\n", output);
		exit(1);
	}

	int i;		// Current byte read
	int n=0;	// Current position in file
	int size=0;	// Size of file;

	while ((i=fgetc(input)) != EOF) size++;

	fclose(input);

	input = fopen(argv[1], "rb");

	while ((i=fgetc(input)) != EOF) {
		if (n>=15 && n<size-1) {
			fputc(i, output);
		}
		n++;
	}

	fclose(input);
	fclose(output);

	return 0;
}

[ob1]

I use the asmsh.exe to assemble my SH2 ASM files.
Unfortunately, the .align directive padds with "0000" (Illegal instruction) and does not allows you to specify the padding value (.align alignment, value).
So, I've written this macro :

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ALIGN_NOP	macro
	.arepeat *%4/2
	NOP
	.aendr
	endm

Then, just call "ALIGN_NOP" as an instruction.
Following instructions will be aligned with NOPs.

[ob1]

ASMSH adds a silly header and appends a byte to the binary. I've written this tool to fix it :

or you could, you know, use "/p"