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This commit is contained in:
Eduard Urbach 2024-08-25 20:38:22 +02:00
parent 12dcf672cb
commit a4dc5a4eff
Signed by: eduard
GPG key ID: 49226B848C78F6C8
89 changed files with 42 additions and 42 deletions
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src/x64/Shift_test.go Normal file
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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 TestShiftLeftNumber(t *testing.T) {
usagePatterns := []struct {
Register cpu.Register
Number int
Code []byte
}{
{x64.RAX, 1, []byte{0x48, 0xC1, 0xE0, 0x01}},
{x64.RCX, 1, []byte{0x48, 0xC1, 0xE1, 0x01}},
{x64.RDX, 1, []byte{0x48, 0xC1, 0xE2, 0x01}},
{x64.RBX, 1, []byte{0x48, 0xC1, 0xE3, 0x01}},
{x64.RSP, 1, []byte{0x48, 0xC1, 0xE4, 0x01}},
{x64.RBP, 1, []byte{0x48, 0xC1, 0xE5, 0x01}},
{x64.RSI, 1, []byte{0x48, 0xC1, 0xE6, 0x01}},
{x64.RDI, 1, []byte{0x48, 0xC1, 0xE7, 0x01}},
{x64.R8, 1, []byte{0x49, 0xC1, 0xE0, 0x01}},
{x64.R9, 1, []byte{0x49, 0xC1, 0xE1, 0x01}},
{x64.R10, 1, []byte{0x49, 0xC1, 0xE2, 0x01}},
{x64.R11, 1, []byte{0x49, 0xC1, 0xE3, 0x01}},
{x64.R12, 1, []byte{0x49, 0xC1, 0xE4, 0x01}},
{x64.R13, 1, []byte{0x49, 0xC1, 0xE5, 0x01}},
{x64.R14, 1, []byte{0x49, 0xC1, 0xE6, 0x01}},
{x64.R15, 1, []byte{0x49, 0xC1, 0xE7, 0x01}},
}
for _, pattern := range usagePatterns {
t.Logf("shl %s, %x", pattern.Register, pattern.Number)
code := x64.ShiftLeftNumber(nil, pattern.Register, byte(pattern.Number))
assert.DeepEqual(t, code, pattern.Code)
}
}
func TestShiftRightSignedNumber(t *testing.T) {
usagePatterns := []struct {
Register cpu.Register
Number int
Code []byte
}{
{x64.RAX, 1, []byte{0x48, 0xC1, 0xF8, 0x01}},
{x64.RCX, 1, []byte{0x48, 0xC1, 0xF9, 0x01}},
{x64.RDX, 1, []byte{0x48, 0xC1, 0xFA, 0x01}},
{x64.RBX, 1, []byte{0x48, 0xC1, 0xFB, 0x01}},
{x64.RSP, 1, []byte{0x48, 0xC1, 0xFC, 0x01}},
{x64.RBP, 1, []byte{0x48, 0xC1, 0xFD, 0x01}},
{x64.RSI, 1, []byte{0x48, 0xC1, 0xFE, 0x01}},
{x64.RDI, 1, []byte{0x48, 0xC1, 0xFF, 0x01}},
{x64.R8, 1, []byte{0x49, 0xC1, 0xF8, 0x01}},
{x64.R9, 1, []byte{0x49, 0xC1, 0xF9, 0x01}},
{x64.R10, 1, []byte{0x49, 0xC1, 0xFA, 0x01}},
{x64.R11, 1, []byte{0x49, 0xC1, 0xFB, 0x01}},
{x64.R12, 1, []byte{0x49, 0xC1, 0xFC, 0x01}},
{x64.R13, 1, []byte{0x49, 0xC1, 0xFD, 0x01}},
{x64.R14, 1, []byte{0x49, 0xC1, 0xFE, 0x01}},
{x64.R15, 1, []byte{0x49, 0xC1, 0xFF, 0x01}},
}
for _, pattern := range usagePatterns {
t.Logf("sar %s, %x", pattern.Register, pattern.Number)
code := x64.ShiftRightSignedNumber(nil, pattern.Register, byte(pattern.Number))
assert.DeepEqual(t, code, pattern.Code)
}
}