88 lines
3.5 KiB
Go
88 lines
3.5 KiB
Go
package x86_test
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import (
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"testing"
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"git.urbach.dev/cli/q/src/cpu"
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"git.urbach.dev/cli/q/src/x86"
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"git.urbach.dev/go/assert"
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)
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func TestAddRegisterNumber(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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{x86.RAX, 1, []byte{0x48, 0x83, 0xC0, 0x01}},
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{x86.RCX, 1, []byte{0x48, 0x83, 0xC1, 0x01}},
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{x86.RDX, 1, []byte{0x48, 0x83, 0xC2, 0x01}},
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{x86.RBX, 1, []byte{0x48, 0x83, 0xC3, 0x01}},
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{x86.RSP, 1, []byte{0x48, 0x83, 0xC4, 0x01}},
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{x86.RBP, 1, []byte{0x48, 0x83, 0xC5, 0x01}},
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{x86.RSI, 1, []byte{0x48, 0x83, 0xC6, 0x01}},
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{x86.RDI, 1, []byte{0x48, 0x83, 0xC7, 0x01}},
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{x86.R8, 1, []byte{0x49, 0x83, 0xC0, 0x01}},
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{x86.R9, 1, []byte{0x49, 0x83, 0xC1, 0x01}},
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{x86.R10, 1, []byte{0x49, 0x83, 0xC2, 0x01}},
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{x86.R11, 1, []byte{0x49, 0x83, 0xC3, 0x01}},
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{x86.R12, 1, []byte{0x49, 0x83, 0xC4, 0x01}},
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{x86.R13, 1, []byte{0x49, 0x83, 0xC5, 0x01}},
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{x86.R14, 1, []byte{0x49, 0x83, 0xC6, 0x01}},
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{x86.R15, 1, []byte{0x49, 0x83, 0xC7, 0x01}},
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{x86.RAX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xC0, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.RCX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xC1, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.RDX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xC2, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.RBX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xC3, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.RSP, 0x7FFFFFFF, []byte{0x48, 0x81, 0xC4, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.RBP, 0x7FFFFFFF, []byte{0x48, 0x81, 0xC5, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.RSI, 0x7FFFFFFF, []byte{0x48, 0x81, 0xC6, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.RDI, 0x7FFFFFFF, []byte{0x48, 0x81, 0xC7, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.R8, 0x7FFFFFFF, []byte{0x49, 0x81, 0xC0, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.R9, 0x7FFFFFFF, []byte{0x49, 0x81, 0xC1, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.R10, 0x7FFFFFFF, []byte{0x49, 0x81, 0xC2, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.R11, 0x7FFFFFFF, []byte{0x49, 0x81, 0xC3, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.R12, 0x7FFFFFFF, []byte{0x49, 0x81, 0xC4, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.R13, 0x7FFFFFFF, []byte{0x49, 0x81, 0xC5, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.R14, 0x7FFFFFFF, []byte{0x49, 0x81, 0xC6, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x86.R15, 0x7FFFFFFF, []byte{0x49, 0x81, 0xC7, 0xFF, 0xFF, 0xFF, 0x7F}},
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}
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for _, pattern := range usagePatterns {
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t.Logf("add %s, %x", pattern.Register, pattern.Number)
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code := x86.AddRegisterNumber(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 TestAddRegisterRegister(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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{x86.RAX, x86.R15, []byte{0x4C, 0x01, 0xF8}},
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{x86.RCX, x86.R14, []byte{0x4C, 0x01, 0xF1}},
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{x86.RDX, x86.R13, []byte{0x4C, 0x01, 0xEA}},
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{x86.RBX, x86.R12, []byte{0x4C, 0x01, 0xE3}},
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{x86.RSP, x86.R11, []byte{0x4C, 0x01, 0xDC}},
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{x86.RBP, x86.R10, []byte{0x4C, 0x01, 0xD5}},
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{x86.RSI, x86.R9, []byte{0x4C, 0x01, 0xCE}},
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{x86.RDI, x86.R8, []byte{0x4C, 0x01, 0xC7}},
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{x86.R8, x86.RDI, []byte{0x49, 0x01, 0xF8}},
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{x86.R9, x86.RSI, []byte{0x49, 0x01, 0xF1}},
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{x86.R10, x86.RBP, []byte{0x49, 0x01, 0xEA}},
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{x86.R11, x86.RSP, []byte{0x49, 0x01, 0xE3}},
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{x86.R12, x86.RBX, []byte{0x49, 0x01, 0xDC}},
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{x86.R13, x86.RDX, []byte{0x49, 0x01, 0xD5}},
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{x86.R14, x86.RCX, []byte{0x49, 0x01, 0xCE}},
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{x86.R15, x86.RAX, []byte{0x49, 0x01, 0xC7}},
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}
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for _, pattern := range usagePatterns {
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t.Logf("add %s, %s", pattern.Left, pattern.Right)
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code := x86.AddRegisterRegister(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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