package x64_test

import (
	"testing"

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

func TestStoreNumber(t *testing.T) {
	usagePatterns := []struct {
		Register cpu.Register
		Offset   byte
		Length   byte
		Number   int
		Code     []byte
	}{
		// No offset
		{x64.RAX, 0, 8, 0x7F, []byte{0x48, 0xC7, 0x00, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RAX, 0, 4, 0x7F, []byte{0xC7, 0x00, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RAX, 0, 2, 0x7F, []byte{0x66, 0xC7, 0x00, 0x7F, 0x00}},
		{x64.RAX, 0, 1, 0x7F, []byte{0xC6, 0x00, 0x7F}},
		{x64.RCX, 0, 8, 0x7F, []byte{0x48, 0xC7, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RCX, 0, 4, 0x7F, []byte{0xC7, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RCX, 0, 2, 0x7F, []byte{0x66, 0xC7, 0x01, 0x7F, 0x00}},
		{x64.RCX, 0, 1, 0x7F, []byte{0xC6, 0x01, 0x7F}},
		{x64.RDX, 0, 8, 0x7F, []byte{0x48, 0xC7, 0x02, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RDX, 0, 4, 0x7F, []byte{0xC7, 0x02, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RDX, 0, 2, 0x7F, []byte{0x66, 0xC7, 0x02, 0x7F, 0x00}},
		{x64.RDX, 0, 1, 0x7F, []byte{0xC6, 0x02, 0x7F}},
		{x64.RBX, 0, 8, 0x7F, []byte{0x48, 0xC7, 0x03, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RBX, 0, 4, 0x7F, []byte{0xC7, 0x03, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RBX, 0, 2, 0x7F, []byte{0x66, 0xC7, 0x03, 0x7F, 0x00}},
		{x64.RBX, 0, 1, 0x7F, []byte{0xC6, 0x03, 0x7F}},
		{x64.RSP, 0, 8, 0x7F, []byte{0x48, 0xC7, 0x04, 0x24, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RSP, 0, 4, 0x7F, []byte{0xC7, 0x04, 0x24, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RSP, 0, 2, 0x7F, []byte{0x66, 0xC7, 0x04, 0x24, 0x7F, 0x00}},
		{x64.RSP, 0, 1, 0x7F, []byte{0xC6, 0x04, 0x24, 0x7F}},
		{x64.RBP, 0, 8, 0x7F, []byte{0x48, 0xC7, 0x45, 0x00, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RBP, 0, 4, 0x7F, []byte{0xC7, 0x45, 0x00, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RBP, 0, 2, 0x7F, []byte{0x66, 0xC7, 0x45, 0x00, 0x7F, 0x00}},
		{x64.RBP, 0, 1, 0x7F, []byte{0xC6, 0x45, 0x00, 0x7F}},
		{x64.RSI, 0, 8, 0x7F, []byte{0x48, 0xC7, 0x06, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RSI, 0, 4, 0x7F, []byte{0xC7, 0x06, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RSI, 0, 2, 0x7F, []byte{0x66, 0xC7, 0x06, 0x7F, 0x00}},
		{x64.RSI, 0, 1, 0x7F, []byte{0xC6, 0x06, 0x7F}},
		{x64.RDI, 0, 8, 0x7F, []byte{0x48, 0xC7, 0x07, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RDI, 0, 4, 0x7F, []byte{0xC7, 0x07, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RDI, 0, 2, 0x7F, []byte{0x66, 0xC7, 0x07, 0x7F, 0x00}},
		{x64.RDI, 0, 1, 0x7F, []byte{0xC6, 0x07, 0x7F}},
		{x64.R8, 0, 8, 0x7F, []byte{0x49, 0xC7, 0x00, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R8, 0, 4, 0x7F, []byte{0x41, 0xC7, 0x00, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R8, 0, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x00, 0x7F, 0x00}},
		{x64.R8, 0, 1, 0x7F, []byte{0x41, 0xC6, 0x00, 0x7F}},
		{x64.R9, 0, 8, 0x7F, []byte{0x49, 0xC7, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R9, 0, 4, 0x7F, []byte{0x41, 0xC7, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R9, 0, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x01, 0x7F, 0x00}},
		{x64.R9, 0, 1, 0x7F, []byte{0x41, 0xC6, 0x01, 0x7F}},
		{x64.R10, 0, 8, 0x7F, []byte{0x49, 0xC7, 0x02, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R10, 0, 4, 0x7F, []byte{0x41, 0xC7, 0x02, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R10, 0, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x02, 0x7F, 0x00}},
		{x64.R10, 0, 1, 0x7F, []byte{0x41, 0xC6, 0x02, 0x7F}},
		{x64.R11, 0, 8, 0x7F, []byte{0x49, 0xC7, 0x03, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R11, 0, 4, 0x7F, []byte{0x41, 0xC7, 0x03, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R11, 0, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x03, 0x7F, 0x00}},
		{x64.R11, 0, 1, 0x7F, []byte{0x41, 0xC6, 0x03, 0x7F}},
		{x64.R12, 0, 8, 0x7F, []byte{0x49, 0xC7, 0x04, 0x24, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R12, 0, 4, 0x7F, []byte{0x41, 0xC7, 0x04, 0x24, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R12, 0, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x04, 0x24, 0x7F, 0x00}},
		{x64.R12, 0, 1, 0x7F, []byte{0x41, 0xC6, 0x04, 0x24, 0x7F}},
		{x64.R13, 0, 8, 0x7F, []byte{0x49, 0xC7, 0x45, 0x00, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R13, 0, 4, 0x7F, []byte{0x41, 0xC7, 0x45, 0x00, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R13, 0, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x45, 0x00, 0x7F, 0x00}},
		{x64.R13, 0, 1, 0x7F, []byte{0x41, 0xC6, 0x45, 0x00, 0x7F}},
		{x64.R14, 0, 8, 0x7F, []byte{0x49, 0xC7, 0x06, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R14, 0, 4, 0x7F, []byte{0x41, 0xC7, 0x06, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R14, 0, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x06, 0x7F, 0x00}},
		{x64.R14, 0, 1, 0x7F, []byte{0x41, 0xC6, 0x06, 0x7F}},
		{x64.R15, 0, 8, 0x7F, []byte{0x49, 0xC7, 0x07, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R15, 0, 4, 0x7F, []byte{0x41, 0xC7, 0x07, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R15, 0, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x07, 0x7F, 0x00}},
		{x64.R15, 0, 1, 0x7F, []byte{0x41, 0xC6, 0x07, 0x7F}},

		// Offset of 1
		{x64.RAX, 1, 8, 0x7F, []byte{0x48, 0xC7, 0x40, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RAX, 1, 4, 0x7F, []byte{0xC7, 0x40, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RAX, 1, 2, 0x7F, []byte{0x66, 0xC7, 0x40, 0x01, 0x7F, 0x00}},
		{x64.RAX, 1, 1, 0x7F, []byte{0xC6, 0x40, 0x01, 0x7F}},
		{x64.RCX, 1, 8, 0x7F, []byte{0x48, 0xC7, 0x41, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RCX, 1, 4, 0x7F, []byte{0xC7, 0x41, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RCX, 1, 2, 0x7F, []byte{0x66, 0xC7, 0x41, 0x01, 0x7F, 0x00}},
		{x64.RCX, 1, 1, 0x7F, []byte{0xC6, 0x41, 0x01, 0x7F}},
		{x64.RDX, 1, 8, 0x7F, []byte{0x48, 0xC7, 0x42, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RDX, 1, 4, 0x7F, []byte{0xC7, 0x42, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RDX, 1, 2, 0x7F, []byte{0x66, 0xC7, 0x42, 0x01, 0x7F, 0x00}},
		{x64.RDX, 1, 1, 0x7F, []byte{0xC6, 0x42, 0x01, 0x7F}},
		{x64.RBX, 1, 8, 0x7F, []byte{0x48, 0xC7, 0x43, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RBX, 1, 4, 0x7F, []byte{0xC7, 0x43, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RBX, 1, 2, 0x7F, []byte{0x66, 0xC7, 0x43, 0x01, 0x7F, 0x00}},
		{x64.RBX, 1, 1, 0x7F, []byte{0xC6, 0x43, 0x01, 0x7F}},
		{x64.RSP, 1, 8, 0x7F, []byte{0x48, 0xC7, 0x44, 0x24, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RSP, 1, 4, 0x7F, []byte{0xC7, 0x44, 0x24, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RSP, 1, 2, 0x7F, []byte{0x66, 0xC7, 0x44, 0x24, 0x01, 0x7F, 0x00}},
		{x64.RSP, 1, 1, 0x7F, []byte{0xC6, 0x44, 0x24, 0x01, 0x7F}},
		{x64.RBP, 1, 8, 0x7F, []byte{0x48, 0xC7, 0x45, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RBP, 1, 4, 0x7F, []byte{0xC7, 0x45, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RBP, 1, 2, 0x7F, []byte{0x66, 0xC7, 0x45, 0x01, 0x7F, 0x00}},
		{x64.RBP, 1, 1, 0x7F, []byte{0xC6, 0x45, 0x01, 0x7F}},
		{x64.RSI, 1, 8, 0x7F, []byte{0x48, 0xC7, 0x46, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RSI, 1, 4, 0x7F, []byte{0xC7, 0x46, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RSI, 1, 2, 0x7F, []byte{0x66, 0xC7, 0x46, 0x01, 0x7F, 0x00}},
		{x64.RSI, 1, 1, 0x7F, []byte{0xC6, 0x46, 0x01, 0x7F}},
		{x64.RDI, 1, 8, 0x7F, []byte{0x48, 0xC7, 0x47, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RDI, 1, 4, 0x7F, []byte{0xC7, 0x47, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.RDI, 1, 2, 0x7F, []byte{0x66, 0xC7, 0x47, 0x01, 0x7F, 0x00}},
		{x64.RDI, 1, 1, 0x7F, []byte{0xC6, 0x47, 0x01, 0x7F}},
		{x64.R8, 1, 8, 0x7F, []byte{0x49, 0xC7, 0x40, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R8, 1, 4, 0x7F, []byte{0x41, 0xC7, 0x40, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R8, 1, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x40, 0x01, 0x7F, 0x00}},
		{x64.R8, 1, 1, 0x7F, []byte{0x41, 0xC6, 0x40, 0x01, 0x7F}},
		{x64.R9, 1, 8, 0x7F, []byte{0x49, 0xC7, 0x41, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R9, 1, 4, 0x7F, []byte{0x41, 0xC7, 0x41, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R9, 1, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x41, 0x01, 0x7F, 0x00}},
		{x64.R9, 1, 1, 0x7F, []byte{0x41, 0xC6, 0x41, 0x01, 0x7F}},
		{x64.R10, 1, 8, 0x7F, []byte{0x49, 0xC7, 0x42, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R10, 1, 4, 0x7F, []byte{0x41, 0xC7, 0x42, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R10, 1, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x42, 0x01, 0x7F, 0x00}},
		{x64.R10, 1, 1, 0x7F, []byte{0x41, 0xC6, 0x42, 0x01, 0x7F}},
		{x64.R11, 1, 8, 0x7F, []byte{0x49, 0xC7, 0x43, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R11, 1, 4, 0x7F, []byte{0x41, 0xC7, 0x43, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R11, 1, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x43, 0x01, 0x7F, 0x00}},
		{x64.R11, 1, 1, 0x7F, []byte{0x41, 0xC6, 0x43, 0x01, 0x7F}},
		{x64.R12, 1, 8, 0x7F, []byte{0x49, 0xC7, 0x44, 0x24, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R12, 1, 4, 0x7F, []byte{0x41, 0xC7, 0x44, 0x24, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R12, 1, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x44, 0x24, 0x01, 0x7F, 0x00}},
		{x64.R12, 1, 1, 0x7F, []byte{0x41, 0xC6, 0x44, 0x24, 0x01, 0x7F}},
		{x64.R13, 1, 8, 0x7F, []byte{0x49, 0xC7, 0x45, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R13, 1, 4, 0x7F, []byte{0x41, 0xC7, 0x45, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R13, 1, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x45, 0x01, 0x7F, 0x00}},
		{x64.R13, 1, 1, 0x7F, []byte{0x41, 0xC6, 0x45, 0x01, 0x7F}},
		{x64.R14, 1, 8, 0x7F, []byte{0x49, 0xC7, 0x46, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R14, 1, 4, 0x7F, []byte{0x41, 0xC7, 0x46, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R14, 1, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x46, 0x01, 0x7F, 0x00}},
		{x64.R14, 1, 1, 0x7F, []byte{0x41, 0xC6, 0x46, 0x01, 0x7F}},
		{x64.R15, 1, 8, 0x7F, []byte{0x49, 0xC7, 0x47, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R15, 1, 4, 0x7F, []byte{0x41, 0xC7, 0x47, 0x01, 0x7F, 0x00, 0x00, 0x00}},
		{x64.R15, 1, 2, 0x7F, []byte{0x66, 0x41, 0xC7, 0x47, 0x01, 0x7F, 0x00}},
		{x64.R15, 1, 1, 0x7F, []byte{0x41, 0xC6, 0x47, 0x01, 0x7F}},
	}

	for _, pattern := range usagePatterns {
		t.Logf("store %dB [%s+%d], %d", pattern.Length, pattern.Register, pattern.Offset, pattern.Number)
		code := x64.StoreNumber(nil, pattern.Register, pattern.Offset, pattern.Length, pattern.Number)
		assert.DeepEqual(t, code, pattern.Code)
	}
}

func TestStoreRegister(t *testing.T) {
	usagePatterns := []struct {
		RegisterTo   cpu.Register
		Offset       byte
		Length       byte
		RegisterFrom cpu.Register
		Code         []byte
	}{
		// No offset
		{x64.RAX, 0, 8, x64.R15, []byte{0x4C, 0x89, 0x38}},
		{x64.RAX, 0, 4, x64.R15, []byte{0x44, 0x89, 0x38}},
		{x64.RAX, 0, 2, x64.R15, []byte{0x66, 0x44, 0x89, 0x38}},
		{x64.RAX, 0, 1, x64.R15, []byte{0x44, 0x88, 0x38}},
		{x64.RCX, 0, 8, x64.R14, []byte{0x4C, 0x89, 0x31}},
		{x64.RCX, 0, 4, x64.R14, []byte{0x44, 0x89, 0x31}},
		{x64.RCX, 0, 2, x64.R14, []byte{0x66, 0x44, 0x89, 0x31}},
		{x64.RCX, 0, 1, x64.R14, []byte{0x44, 0x88, 0x31}},
		{x64.RDX, 0, 8, x64.R13, []byte{0x4C, 0x89, 0x2A}},
		{x64.RDX, 0, 4, x64.R13, []byte{0x44, 0x89, 0x2A}},
		{x64.RDX, 0, 2, x64.R13, []byte{0x66, 0x44, 0x89, 0x2A}},
		{x64.RDX, 0, 1, x64.R13, []byte{0x44, 0x88, 0x2A}},
		{x64.RBX, 0, 8, x64.R12, []byte{0x4C, 0x89, 0x23}},
		{x64.RBX, 0, 4, x64.R12, []byte{0x44, 0x89, 0x23}},
		{x64.RBX, 0, 2, x64.R12, []byte{0x66, 0x44, 0x89, 0x23}},
		{x64.RBX, 0, 1, x64.R12, []byte{0x44, 0x88, 0x23}},
		{x64.RSP, 0, 8, x64.R11, []byte{0x4C, 0x89, 0x1C, 0x24}},
		{x64.RSP, 0, 4, x64.R11, []byte{0x44, 0x89, 0x1C, 0x24}},
		{x64.RSP, 0, 2, x64.R11, []byte{0x66, 0x44, 0x89, 0x1C, 0x24}},
		{x64.RSP, 0, 1, x64.R11, []byte{0x44, 0x88, 0x1C, 0x24}},
		{x64.RBP, 0, 8, x64.R10, []byte{0x4C, 0x89, 0x55, 0x00}},
		{x64.RBP, 0, 4, x64.R10, []byte{0x44, 0x89, 0x55, 0x00}},
		{x64.RBP, 0, 2, x64.R10, []byte{0x66, 0x44, 0x89, 0x55, 0x00}},
		{x64.RBP, 0, 1, x64.R10, []byte{0x44, 0x88, 0x55, 0x00}},
		{x64.RSI, 0, 8, x64.R9, []byte{0x4C, 0x89, 0x0E}},
		{x64.RSI, 0, 4, x64.R9, []byte{0x44, 0x89, 0x0E}},
		{x64.RSI, 0, 2, x64.R9, []byte{0x66, 0x44, 0x89, 0x0E}},
		{x64.RSI, 0, 1, x64.R9, []byte{0x44, 0x88, 0x0E}},
		{x64.RDI, 0, 8, x64.R8, []byte{0x4C, 0x89, 0x07}},
		{x64.RDI, 0, 4, x64.R8, []byte{0x44, 0x89, 0x07}},
		{x64.RDI, 0, 2, x64.R8, []byte{0x66, 0x44, 0x89, 0x07}},
		{x64.RDI, 0, 1, x64.R8, []byte{0x44, 0x88, 0x07}},
		{x64.R8, 0, 8, x64.RDI, []byte{0x49, 0x89, 0x38}},
		{x64.R8, 0, 4, x64.RDI, []byte{0x41, 0x89, 0x38}},
		{x64.R8, 0, 2, x64.RDI, []byte{0x66, 0x41, 0x89, 0x38}},
		{x64.R8, 0, 1, x64.RDI, []byte{0x41, 0x88, 0x38}},
		{x64.R9, 0, 8, x64.RSI, []byte{0x49, 0x89, 0x31}},
		{x64.R9, 0, 4, x64.RSI, []byte{0x41, 0x89, 0x31}},
		{x64.R9, 0, 2, x64.RSI, []byte{0x66, 0x41, 0x89, 0x31}},
		{x64.R9, 0, 1, x64.RSI, []byte{0x41, 0x88, 0x31}},
		{x64.R10, 0, 8, x64.RBP, []byte{0x49, 0x89, 0x2A}},
		{x64.R10, 0, 4, x64.RBP, []byte{0x41, 0x89, 0x2A}},
		{x64.R10, 0, 2, x64.RBP, []byte{0x66, 0x41, 0x89, 0x2A}},
		{x64.R10, 0, 1, x64.RBP, []byte{0x41, 0x88, 0x2A}},
		{x64.R11, 0, 8, x64.RSP, []byte{0x49, 0x89, 0x23}},
		{x64.R11, 0, 4, x64.RSP, []byte{0x41, 0x89, 0x23}},
		{x64.R11, 0, 2, x64.RSP, []byte{0x66, 0x41, 0x89, 0x23}},
		{x64.R11, 0, 1, x64.RSP, []byte{0x41, 0x88, 0x23}},
		{x64.R12, 0, 8, x64.RBX, []byte{0x49, 0x89, 0x1C, 0x24}},
		{x64.R12, 0, 4, x64.RBX, []byte{0x41, 0x89, 0x1C, 0x24}},
		{x64.R12, 0, 2, x64.RBX, []byte{0x66, 0x41, 0x89, 0x1C, 0x24}},
		{x64.R12, 0, 1, x64.RBX, []byte{0x41, 0x88, 0x1C, 0x24}},
		{x64.R13, 0, 8, x64.RDX, []byte{0x49, 0x89, 0x55, 0x00}},
		{x64.R13, 0, 4, x64.RDX, []byte{0x41, 0x89, 0x55, 0x00}},
		{x64.R13, 0, 2, x64.RDX, []byte{0x66, 0x41, 0x89, 0x55, 0x00}},
		{x64.R13, 0, 1, x64.RDX, []byte{0x41, 0x88, 0x55, 0x00}},
		{x64.R14, 0, 8, x64.RCX, []byte{0x49, 0x89, 0x0E}},
		{x64.R14, 0, 4, x64.RCX, []byte{0x41, 0x89, 0x0E}},
		{x64.R14, 0, 2, x64.RCX, []byte{0x66, 0x41, 0x89, 0x0E}},
		{x64.R14, 0, 1, x64.RCX, []byte{0x41, 0x88, 0x0E}},
		{x64.R15, 0, 8, x64.RAX, []byte{0x49, 0x89, 0x07}},
		{x64.R15, 0, 4, x64.RAX, []byte{0x41, 0x89, 0x07}},
		{x64.R15, 0, 2, x64.RAX, []byte{0x66, 0x41, 0x89, 0x07}},
		{x64.R15, 0, 1, x64.RAX, []byte{0x41, 0x88, 0x07}},

		// Offset of 1
		{x64.RAX, 1, 8, x64.R15, []byte{0x4C, 0x89, 0x78, 0x01}},
		{x64.RAX, 1, 4, x64.R15, []byte{0x44, 0x89, 0x78, 0x01}},
		{x64.RAX, 1, 2, x64.R15, []byte{0x66, 0x44, 0x89, 0x78, 0x01}},
		{x64.RAX, 1, 1, x64.R15, []byte{0x44, 0x88, 0x78, 0x01}},
		{x64.RCX, 1, 8, x64.R14, []byte{0x4C, 0x89, 0x71, 0x01}},
		{x64.RCX, 1, 4, x64.R14, []byte{0x44, 0x89, 0x71, 0x01}},
		{x64.RCX, 1, 2, x64.R14, []byte{0x66, 0x44, 0x89, 0x71, 0x01}},
		{x64.RCX, 1, 1, x64.R14, []byte{0x44, 0x88, 0x71, 0x01}},
		{x64.RDX, 1, 8, x64.R13, []byte{0x4C, 0x89, 0x6A, 0x01}},
		{x64.RDX, 1, 4, x64.R13, []byte{0x44, 0x89, 0x6A, 0x01}},
		{x64.RDX, 1, 2, x64.R13, []byte{0x66, 0x44, 0x89, 0x6A, 0x01}},
		{x64.RDX, 1, 1, x64.R13, []byte{0x44, 0x88, 0x6A, 0x01}},
		{x64.RBX, 1, 8, x64.R12, []byte{0x4C, 0x89, 0x63, 0x01}},
		{x64.RBX, 1, 4, x64.R12, []byte{0x44, 0x89, 0x63, 0x01}},
		{x64.RBX, 1, 2, x64.R12, []byte{0x66, 0x44, 0x89, 0x63, 0x01}},
		{x64.RBX, 1, 1, x64.R12, []byte{0x44, 0x88, 0x63, 0x01}},
		{x64.RSP, 1, 8, x64.R11, []byte{0x4C, 0x89, 0x5C, 0x24, 0x01}},
		{x64.RSP, 1, 4, x64.R11, []byte{0x44, 0x89, 0x5C, 0x24, 0x01}},
		{x64.RSP, 1, 2, x64.R11, []byte{0x66, 0x44, 0x89, 0x5C, 0x24, 0x01}},
		{x64.RSP, 1, 1, x64.R11, []byte{0x44, 0x88, 0x5C, 0x24, 0x01}},
		{x64.RBP, 1, 8, x64.R10, []byte{0x4C, 0x89, 0x55, 0x01}},
		{x64.RBP, 1, 4, x64.R10, []byte{0x44, 0x89, 0x55, 0x01}},
		{x64.RBP, 1, 2, x64.R10, []byte{0x66, 0x44, 0x89, 0x55, 0x01}},
		{x64.RBP, 1, 1, x64.R10, []byte{0x44, 0x88, 0x55, 0x01}},
		{x64.RSI, 1, 8, x64.R9, []byte{0x4C, 0x89, 0x4E, 0x01}},
		{x64.RSI, 1, 4, x64.R9, []byte{0x44, 0x89, 0x4E, 0x01}},
		{x64.RSI, 1, 2, x64.R9, []byte{0x66, 0x44, 0x89, 0x4E, 0x01}},
		{x64.RSI, 1, 1, x64.R9, []byte{0x44, 0x88, 0x4E, 0x01}},
		{x64.RDI, 1, 8, x64.R8, []byte{0x4C, 0x89, 0x47, 0x01}},
		{x64.RDI, 1, 4, x64.R8, []byte{0x44, 0x89, 0x47, 0x01}},
		{x64.RDI, 1, 2, x64.R8, []byte{0x66, 0x44, 0x89, 0x47, 0x01}},
		{x64.RDI, 1, 1, x64.R8, []byte{0x44, 0x88, 0x47, 0x01}},
		{x64.R8, 1, 8, x64.RDI, []byte{0x49, 0x89, 0x78, 0x01}},
		{x64.R8, 1, 4, x64.RDI, []byte{0x41, 0x89, 0x78, 0x01}},
		{x64.R8, 1, 2, x64.RDI, []byte{0x66, 0x41, 0x89, 0x78, 0x01}},
		{x64.R8, 1, 1, x64.RDI, []byte{0x41, 0x88, 0x78, 0x01}},
		{x64.R9, 1, 8, x64.RSI, []byte{0x49, 0x89, 0x71, 0x01}},
		{x64.R9, 1, 4, x64.RSI, []byte{0x41, 0x89, 0x71, 0x01}},
		{x64.R9, 1, 2, x64.RSI, []byte{0x66, 0x41, 0x89, 0x71, 0x01}},
		{x64.R9, 1, 1, x64.RSI, []byte{0x41, 0x88, 0x71, 0x01}},
		{x64.R10, 1, 8, x64.RBP, []byte{0x49, 0x89, 0x6A, 0x01}},
		{x64.R10, 1, 4, x64.RBP, []byte{0x41, 0x89, 0x6A, 0x01}},
		{x64.R10, 1, 2, x64.RBP, []byte{0x66, 0x41, 0x89, 0x6A, 0x01}},
		{x64.R10, 1, 1, x64.RBP, []byte{0x41, 0x88, 0x6A, 0x01}},
		{x64.R11, 1, 8, x64.RSP, []byte{0x49, 0x89, 0x63, 0x01}},
		{x64.R11, 1, 4, x64.RSP, []byte{0x41, 0x89, 0x63, 0x01}},
		{x64.R11, 1, 2, x64.RSP, []byte{0x66, 0x41, 0x89, 0x63, 0x01}},
		{x64.R11, 1, 1, x64.RSP, []byte{0x41, 0x88, 0x63, 0x01}},
		{x64.R12, 1, 8, x64.RBX, []byte{0x49, 0x89, 0x5C, 0x24, 0x01}},
		{x64.R12, 1, 4, x64.RBX, []byte{0x41, 0x89, 0x5C, 0x24, 0x01}},
		{x64.R12, 1, 2, x64.RBX, []byte{0x66, 0x41, 0x89, 0x5C, 0x24, 0x01}},
		{x64.R12, 1, 1, x64.RBX, []byte{0x41, 0x88, 0x5C, 0x24, 01}},
		{x64.R13, 1, 8, x64.RDX, []byte{0x49, 0x89, 0x55, 0x01}},
		{x64.R13, 1, 4, x64.RDX, []byte{0x41, 0x89, 0x55, 0x01}},
		{x64.R13, 1, 2, x64.RDX, []byte{0x66, 0x41, 0x89, 0x55, 0x01}},
		{x64.R13, 1, 1, x64.RDX, []byte{0x41, 0x88, 0x55, 0x01}},
		{x64.R14, 1, 8, x64.RCX, []byte{0x49, 0x89, 0x4E, 0x01}},
		{x64.R14, 1, 4, x64.RCX, []byte{0x41, 0x89, 0x4E, 0x01}},
		{x64.R14, 1, 2, x64.RCX, []byte{0x66, 0x41, 0x89, 0x4E, 0x01}},
		{x64.R14, 1, 1, x64.RCX, []byte{0x41, 0x88, 0x4E, 0x01}},
		{x64.R15, 1, 8, x64.RAX, []byte{0x49, 0x89, 0x47, 0x01}},
		{x64.R15, 1, 4, x64.RAX, []byte{0x41, 0x89, 0x47, 0x01}},
		{x64.R15, 1, 2, x64.RAX, []byte{0x66, 0x41, 0x89, 0x47, 0x01}},
		{x64.R15, 1, 1, x64.RAX, []byte{0x41, 0x88, 0x47, 0x01}},
	}

	for _, pattern := range usagePatterns {
		t.Logf("store %dB [%s+%d], %s", pattern.Length, pattern.RegisterTo, pattern.Offset, pattern.RegisterFrom)
		code := x64.StoreRegister(nil, pattern.RegisterTo, pattern.Offset, pattern.Length, pattern.RegisterFrom)
		assert.DeepEqual(t, code, pattern.Code)
	}
}