89 lines
3.6 KiB
Go
89 lines
3.6 KiB
Go
package x64_test
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import (
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"testing"
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"git.akyoto.dev/cli/q/src/arch/x64"
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"git.akyoto.dev/cli/q/src/cpu"
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"git.akyoto.dev/go/assert"
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)
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func TestMulRegisterNumber(t *testing.T) {
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usagePatterns := []struct {
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Register cpu.Register
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Number int
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Code []byte
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}{
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{x64.RAX, 1, []byte{0x48, 0x6B, 0xC0, 0x01}},
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{x64.RCX, 1, []byte{0x48, 0x6B, 0xC9, 0x01}},
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{x64.RDX, 1, []byte{0x48, 0x6B, 0xD2, 0x01}},
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{x64.RBX, 1, []byte{0x48, 0x6B, 0xDB, 0x01}},
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{x64.RSP, 1, []byte{0x48, 0x6B, 0xE4, 0x01}},
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{x64.RBP, 1, []byte{0x48, 0x6B, 0xED, 0x01}},
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{x64.RSI, 1, []byte{0x48, 0x6B, 0xF6, 0x01}},
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{x64.RDI, 1, []byte{0x48, 0x6B, 0xFF, 0x01}},
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{x64.R8, 1, []byte{0x4D, 0x6B, 0xC0, 0x01}},
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{x64.R9, 1, []byte{0x4D, 0x6B, 0xC9, 0x01}},
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{x64.R10, 1, []byte{0x4D, 0x6B, 0xD2, 0x01}},
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{x64.R11, 1, []byte{0x4D, 0x6B, 0xDB, 0x01}},
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{x64.R12, 1, []byte{0x4D, 0x6B, 0xE4, 0x01}},
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{x64.R13, 1, []byte{0x4D, 0x6B, 0xED, 0x01}},
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{x64.R14, 1, []byte{0x4D, 0x6B, 0xF6, 0x01}},
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{x64.R15, 1, []byte{0x4D, 0x6B, 0xFF, 0x01}},
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{x64.RAX, 0x7FFFFFFF, []byte{0x48, 0x69, 0xC0, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RCX, 0x7FFFFFFF, []byte{0x48, 0x69, 0xC9, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RDX, 0x7FFFFFFF, []byte{0x48, 0x69, 0xD2, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RBX, 0x7FFFFFFF, []byte{0x48, 0x69, 0xDB, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RSP, 0x7FFFFFFF, []byte{0x48, 0x69, 0xE4, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RBP, 0x7FFFFFFF, []byte{0x48, 0x69, 0xED, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RSI, 0x7FFFFFFF, []byte{0x48, 0x69, 0xF6, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RDI, 0x7FFFFFFF, []byte{0x48, 0x69, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R8, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xC0, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R9, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xC9, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R10, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xD2, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R11, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xDB, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R12, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xE4, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R13, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xED, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R14, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xF6, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R15, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F}},
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}
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for _, pattern := range usagePatterns {
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t.Logf("mul %s, %x", pattern.Register, pattern.Number)
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code := x64.MulRegisterNumber(nil, pattern.Register, pattern.Number)
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assert.DeepEqual(t, code, pattern.Code)
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}
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}
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func TestMulRegisterRegister(t *testing.T) {
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usagePatterns := []struct {
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Left cpu.Register
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Right cpu.Register
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Code []byte
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}{
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{x64.RAX, x64.R15, []byte{0x49, 0x0F, 0xAF, 0xC7}},
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{x64.RCX, x64.R14, []byte{0x49, 0x0F, 0xAF, 0xCE}},
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{x64.RDX, x64.R13, []byte{0x49, 0x0F, 0xAF, 0xD5}},
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{x64.RBX, x64.R12, []byte{0x49, 0x0F, 0xAF, 0xDC}},
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{x64.RSP, x64.R11, []byte{0x49, 0x0F, 0xAF, 0xE3}},
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{x64.RBP, x64.R10, []byte{0x49, 0x0F, 0xAF, 0xEA}},
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{x64.RSI, x64.R9, []byte{0x49, 0x0F, 0xAF, 0xF1}},
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{x64.RDI, x64.R8, []byte{0x49, 0x0F, 0xAF, 0xF8}},
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{x64.R8, x64.RDI, []byte{0x4C, 0x0F, 0xAF, 0xC7}},
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{x64.R9, x64.RSI, []byte{0x4C, 0x0F, 0xAF, 0xCE}},
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{x64.R10, x64.RBP, []byte{0x4C, 0x0F, 0xAF, 0xD5}},
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{x64.R11, x64.RSP, []byte{0x4C, 0x0F, 0xAF, 0xDC}},
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{x64.R12, x64.RBX, []byte{0x4C, 0x0F, 0xAF, 0xE3}},
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{x64.R13, x64.RDX, []byte{0x4C, 0x0F, 0xAF, 0xEA}},
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{x64.R14, x64.RCX, []byte{0x4C, 0x0F, 0xAF, 0xF1}},
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{x64.R15, x64.RAX, []byte{0x4C, 0x0F, 0xAF, 0xF8}},
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}
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for _, pattern := range usagePatterns {
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t.Logf("mul %s, %s", pattern.Left, pattern.Right)
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code := x64.MulRegisterRegister(nil, pattern.Left, pattern.Right)
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assert.DeepEqual(t, code, pattern.Code)
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}
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}
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