#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <setjmp.h>
#include <cmocka.h>
#include "m68k.h"
#include "run.h"
#include "sym.h"
#include "tests.h"

static void
test_c9read_end(void)
{
	uint8_t *ctx, *b;

	ctx = mem+m68k_get_reg(NULL, M68K_REG_A0);
	assert_ptr_equal(ctx, mem+Ctx);
	b = mem+Begindst;
	assert_int_equal(ru32le(b), bufsz); // size
	assert_int_equal(b[4], EXPR_Tread); // type
	assert_int_equal(ru16le(b+5), 0); // tag
	assert_int_equal(ru32le(b+7), 0x12345678); // fid
	assert_int_equal(ru64le(b+11), 0x3000000010LL); // offset
	assert_int_equal(ru32le(b+19), 1000); // count
	assert_int_equal(b[23], fill);
	executed |= End;
}

void
test_c9read(void **state)
{
	uint8_t *ctx;
	uint16_t sr;

	(void)state;
	ctx = mem+Ctx;
	initctx(ctx, Msize);
	c9begin = generic_begin;
	c9end = test_c9read_end;
	executed = 0;
	m68k_set_reg(M68K_REG_A0, Ctx);
	m68k_set_reg(M68K_REG_D0, 0x12345678);
	m68k_set_reg(M68K_REG_D1, 0x30);
	m68k_set_reg(M68K_REG_D2, 0x10);
	m68k_set_reg(M68K_REG_D3, 1000);
	jsr(Progstart+SYM_c9read);
	sr = m68k_get_reg(NULL, M68K_REG_SR);
	assert_false(sr & SR_C);

	// check if the data buffer was used
	assert_int_equal(executed, Begin|End);
}