package x64_test

import (
	"testing"

	"git.akyoto.dev/cli/q/src/cpu"
	"git.akyoto.dev/cli/q/src/x64"
	"git.akyoto.dev/go/assert"
)

func TestDivRegister(t *testing.T) {
	usagePatterns := []struct {
		Register cpu.Register
		Code     []byte
	}{
		{x64.RAX, []byte{0x48, 0xF7, 0xF8}},
		{x64.RCX, []byte{0x48, 0xF7, 0xF9}},
		{x64.RDX, []byte{0x48, 0xF7, 0xFA}},
		{x64.RBX, []byte{0x48, 0xF7, 0xFB}},
		{x64.RSP, []byte{0x48, 0xF7, 0xFC}},
		{x64.RBP, []byte{0x48, 0xF7, 0xFD}},
		{x64.RSI, []byte{0x48, 0xF7, 0xFE}},
		{x64.RDI, []byte{0x48, 0xF7, 0xFF}},
		{x64.R8, []byte{0x49, 0xF7, 0xF8}},
		{x64.R9, []byte{0x49, 0xF7, 0xF9}},
		{x64.R10, []byte{0x49, 0xF7, 0xFA}},
		{x64.R11, []byte{0x49, 0xF7, 0xFB}},
		{x64.R12, []byte{0x49, 0xF7, 0xFC}},
		{x64.R13, []byte{0x49, 0xF7, 0xFD}},
		{x64.R14, []byte{0x49, 0xF7, 0xFE}},
		{x64.R15, []byte{0x49, 0xF7, 0xFF}},
	}

	for _, pattern := range usagePatterns {
		t.Logf("idiv %s", pattern.Register)
		code := x64.DivRegister(nil, pattern.Register)
		assert.DeepEqual(t, code, pattern.Code)
	}
}