view test_arm.c @ 1305:5ceb316c479a

Allow games to be specified in ROM DB via sha1 instead of product ID. Added a new ROM DB memory map device type fixed for emulating simple fixed value copy protection registers. Used those two features to support Ya Se Chuan Shuo via a ROM DB entry.
author Michael Pavone <pavone@retrodev.com>
date Wed, 29 Mar 2017 00:29:44 -0700
parents 474270dbff15
children
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line source

#include <stdio.h>
#include "gen_arm.h"

typedef int32_t (*fib_fun)(int32_t);

int main(int arc, char **argv)
{
	code_info code;
	init_code_info(&code);
	uint32_t *fib = code.cur;
	subi(&code, r0, r0, 2, SET_COND);
	movi_cc(&code, r0, 1, NO_COND, CC_LT);
	bx_cc(&code, lr, CC_LT);
	pushm(&code, LR | R4);
	mov(&code, r4, r0, NO_COND);
	bl(&code, fib);
	mov(&code, r1, r0, NO_COND);
	addi(&code, r0, r4, 1, NO_COND);
	mov(&code, r4, r1, NO_COND);
	bl(&code, fib);
	add(&code, r0, r4, r0, NO_COND);
	popm(&code, LR | R4);
	bx(&code, lr);

	fib_fun fibc = (fib_fun)fib;
	printf("fib(10): %d\n", fibc(10));

	return 0;
}