88 lines
3.6 KiB
Go
88 lines
3.6 KiB
Go
package x86_test
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"git.akyoto.dev/cli/q/src/cpu"
|
|
"git.akyoto.dev/cli/q/src/x86"
|
|
"git.akyoto.dev/go/assert"
|
|
)
|
|
|
|
func TestMulRegisterNumber(t *testing.T) {
|
|
usagePatterns := []struct {
|
|
Register cpu.Register
|
|
Number int
|
|
Code []byte
|
|
}{
|
|
{x86.RAX, 1, []byte{0x48, 0x6B, 0xC0, 0x01}},
|
|
{x86.RCX, 1, []byte{0x48, 0x6B, 0xC9, 0x01}},
|
|
{x86.RDX, 1, []byte{0x48, 0x6B, 0xD2, 0x01}},
|
|
{x86.RBX, 1, []byte{0x48, 0x6B, 0xDB, 0x01}},
|
|
{x86.RSP, 1, []byte{0x48, 0x6B, 0xE4, 0x01}},
|
|
{x86.RBP, 1, []byte{0x48, 0x6B, 0xED, 0x01}},
|
|
{x86.RSI, 1, []byte{0x48, 0x6B, 0xF6, 0x01}},
|
|
{x86.RDI, 1, []byte{0x48, 0x6B, 0xFF, 0x01}},
|
|
{x86.R8, 1, []byte{0x4D, 0x6B, 0xC0, 0x01}},
|
|
{x86.R9, 1, []byte{0x4D, 0x6B, 0xC9, 0x01}},
|
|
{x86.R10, 1, []byte{0x4D, 0x6B, 0xD2, 0x01}},
|
|
{x86.R11, 1, []byte{0x4D, 0x6B, 0xDB, 0x01}},
|
|
{x86.R12, 1, []byte{0x4D, 0x6B, 0xE4, 0x01}},
|
|
{x86.R13, 1, []byte{0x4D, 0x6B, 0xED, 0x01}},
|
|
{x86.R14, 1, []byte{0x4D, 0x6B, 0xF6, 0x01}},
|
|
{x86.R15, 1, []byte{0x4D, 0x6B, 0xFF, 0x01}},
|
|
|
|
{x86.RAX, 0x7FFFFFFF, []byte{0x48, 0x69, 0xC0, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RCX, 0x7FFFFFFF, []byte{0x48, 0x69, 0xC9, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RDX, 0x7FFFFFFF, []byte{0x48, 0x69, 0xD2, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RBX, 0x7FFFFFFF, []byte{0x48, 0x69, 0xDB, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RSP, 0x7FFFFFFF, []byte{0x48, 0x69, 0xE4, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RBP, 0x7FFFFFFF, []byte{0x48, 0x69, 0xED, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RSI, 0x7FFFFFFF, []byte{0x48, 0x69, 0xF6, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RDI, 0x7FFFFFFF, []byte{0x48, 0x69, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R8, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xC0, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R9, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xC9, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R10, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xD2, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R11, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xDB, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R12, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xE4, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R13, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xED, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R14, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xF6, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R15, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
}
|
|
|
|
for _, pattern := range usagePatterns {
|
|
t.Logf("mul %s, %x", pattern.Register, pattern.Number)
|
|
code := x86.MulRegisterNumber(nil, pattern.Register, pattern.Number)
|
|
assert.DeepEqual(t, code, pattern.Code)
|
|
}
|
|
}
|
|
|
|
func TestMulRegisterRegister(t *testing.T) {
|
|
usagePatterns := []struct {
|
|
Left cpu.Register
|
|
Right cpu.Register
|
|
Code []byte
|
|
}{
|
|
{x86.RAX, x86.R15, []byte{0x49, 0x0F, 0xAF, 0xC7}},
|
|
{x86.RCX, x86.R14, []byte{0x49, 0x0F, 0xAF, 0xCE}},
|
|
{x86.RDX, x86.R13, []byte{0x49, 0x0F, 0xAF, 0xD5}},
|
|
{x86.RBX, x86.R12, []byte{0x49, 0x0F, 0xAF, 0xDC}},
|
|
{x86.RSP, x86.R11, []byte{0x49, 0x0F, 0xAF, 0xE3}},
|
|
{x86.RBP, x86.R10, []byte{0x49, 0x0F, 0xAF, 0xEA}},
|
|
{x86.RSI, x86.R9, []byte{0x49, 0x0F, 0xAF, 0xF1}},
|
|
{x86.RDI, x86.R8, []byte{0x49, 0x0F, 0xAF, 0xF8}},
|
|
{x86.R8, x86.RDI, []byte{0x4C, 0x0F, 0xAF, 0xC7}},
|
|
{x86.R9, x86.RSI, []byte{0x4C, 0x0F, 0xAF, 0xCE}},
|
|
{x86.R10, x86.RBP, []byte{0x4C, 0x0F, 0xAF, 0xD5}},
|
|
{x86.R11, x86.RSP, []byte{0x4C, 0x0F, 0xAF, 0xDC}},
|
|
{x86.R12, x86.RBX, []byte{0x4C, 0x0F, 0xAF, 0xE3}},
|
|
{x86.R13, x86.RDX, []byte{0x4C, 0x0F, 0xAF, 0xEA}},
|
|
{x86.R14, x86.RCX, []byte{0x4C, 0x0F, 0xAF, 0xF1}},
|
|
{x86.R15, x86.RAX, []byte{0x4C, 0x0F, 0xAF, 0xF8}},
|
|
}
|
|
|
|
for _, pattern := range usagePatterns {
|
|
t.Logf("mul %s, %s", pattern.Left, pattern.Right)
|
|
code := x86.MulRegisterRegister(nil, pattern.Left, pattern.Right)
|
|
assert.DeepEqual(t, code, pattern.Code)
|
|
}
|
|
}
|