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🌱 A minimal programming language and compiler. git.urbach.dev/cli/q
high-performance programming-language compiler
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import ( "testing"
"git.urbach.dev/cli/q/src/cpu" "git.urbach.dev/cli/q/src/x86" "git.urbach.dev/go/assert")
func TestShiftLeft(t *testing.T) { usagePatterns := []struct { Register cpu.Register Code []byte }{ {x86.R0, []byte{0x48, 0xD3, 0xE0}}, {x86.R1, []byte{0x48, 0xD3, 0xE1}}, {x86.R2, []byte{0x48, 0xD3, 0xE2}}, {x86.R3, []byte{0x48, 0xD3, 0xE3}}, {x86.SP, []byte{0x48, 0xD3, 0xE4}}, {x86.R5, []byte{0x48, 0xD3, 0xE5}}, {x86.R6, []byte{0x48, 0xD3, 0xE6}}, {x86.R7, []byte{0x48, 0xD3, 0xE7}}, {x86.R8, []byte{0x49, 0xD3, 0xE0}}, {x86.R9, []byte{0x49, 0xD3, 0xE1}}, {x86.R10, []byte{0x49, 0xD3, 0xE2}}, {x86.R11, []byte{0x49, 0xD3, 0xE3}}, {x86.R12, []byte{0x49, 0xD3, 0xE4}}, {x86.R13, []byte{0x49, 0xD3, 0xE5}}, {x86.R14, []byte{0x49, 0xD3, 0xE6}}, {x86.R15, []byte{0x49, 0xD3, 0xE7}}, }
for _, pattern := range usagePatterns { t.Logf("shl %s, cl", pattern.Register) code := x86.ShiftLeft(nil, pattern.Register) assert.DeepEqual(t, code, pattern.Code) }}
func TestShiftRight(t *testing.T) { usagePatterns := []struct { Register cpu.Register Code []byte }{ {x86.R0, []byte{0x48, 0xD3, 0xE8}}, {x86.R1, []byte{0x48, 0xD3, 0xE9}}, {x86.R2, []byte{0x48, 0xD3, 0xEA}}, {x86.R3, []byte{0x48, 0xD3, 0xEB}}, {x86.SP, []byte{0x48, 0xD3, 0xEC}}, {x86.R5, []byte{0x48, 0xD3, 0xED}}, {x86.R6, []byte{0x48, 0xD3, 0xEE}}, {x86.R7, []byte{0x48, 0xD3, 0xEF}}, {x86.R8, []byte{0x49, 0xD3, 0xE8}}, {x86.R9, []byte{0x49, 0xD3, 0xE9}}, {x86.R10, []byte{0x49, 0xD3, 0xEA}}, {x86.R11, []byte{0x49, 0xD3, 0xEB}}, {x86.R12, []byte{0x49, 0xD3, 0xEC}}, {x86.R13, []byte{0x49, 0xD3, 0xED}}, {x86.R14, []byte{0x49, 0xD3, 0xEE}}, {x86.R15, []byte{0x49, 0xD3, 0xEF}}, }
for _, pattern := range usagePatterns { t.Logf("shr %s, cl", pattern.Register) code := x86.ShiftRight(nil, pattern.Register) assert.DeepEqual(t, code, pattern.Code) }}
func TestShiftRightSigned(t *testing.T) { usagePatterns := []struct { Register cpu.Register Code []byte }{ {x86.R0, []byte{0x48, 0xD3, 0xF8}}, {x86.R1, []byte{0x48, 0xD3, 0xF9}}, {x86.R2, []byte{0x48, 0xD3, 0xFA}}, {x86.R3, []byte{0x48, 0xD3, 0xFB}}, {x86.SP, []byte{0x48, 0xD3, 0xFC}}, {x86.R5, []byte{0x48, 0xD3, 0xFD}}, {x86.R6, []byte{0x48, 0xD3, 0xFE}}, {x86.R7, []byte{0x48, 0xD3, 0xFF}}, {x86.R8, []byte{0x49, 0xD3, 0xF8}}, {x86.R9, []byte{0x49, 0xD3, 0xF9}}, {x86.R10, []byte{0x49, 0xD3, 0xFA}}, {x86.R11, []byte{0x49, 0xD3, 0xFB}}, {x86.R12, []byte{0x49, 0xD3, 0xFC}}, {x86.R13, []byte{0x49, 0xD3, 0xFD}}, {x86.R14, []byte{0x49, 0xD3, 0xFE}}, {x86.R15, []byte{0x49, 0xD3, 0xFF}}, }
for _, pattern := range usagePatterns { t.Logf("sar %s, cl", pattern.Register) code := x86.ShiftRightSigned(nil, pattern.Register) assert.DeepEqual(t, code, pattern.Code) }}
func TestShiftLeftNumber(t *testing.T) { usagePatterns := []struct { Register cpu.Register Number int Code []byte }{ {x86.R0, 1, []byte{0x48, 0xC1, 0xE0, 0x01}}, {x86.R1, 1, []byte{0x48, 0xC1, 0xE1, 0x01}}, {x86.R2, 1, []byte{0x48, 0xC1, 0xE2, 0x01}}, {x86.R3, 1, []byte{0x48, 0xC1, 0xE3, 0x01}}, {x86.SP, 1, []byte{0x48, 0xC1, 0xE4, 0x01}}, {x86.R5, 1, []byte{0x48, 0xC1, 0xE5, 0x01}}, {x86.R6, 1, []byte{0x48, 0xC1, 0xE6, 0x01}}, {x86.R7, 1, []byte{0x48, 0xC1, 0xE7, 0x01}}, {x86.R8, 1, []byte{0x49, 0xC1, 0xE0, 0x01}}, {x86.R9, 1, []byte{0x49, 0xC1, 0xE1, 0x01}}, {x86.R10, 1, []byte{0x49, 0xC1, 0xE2, 0x01}}, {x86.R11, 1, []byte{0x49, 0xC1, 0xE3, 0x01}}, {x86.R12, 1, []byte{0x49, 0xC1, 0xE4, 0x01}}, {x86.R13, 1, []byte{0x49, 0xC1, 0xE5, 0x01}}, {x86.R14, 1, []byte{0x49, 0xC1, 0xE6, 0x01}}, {x86.R15, 1, []byte{0x49, 0xC1, 0xE7, 0x01}}, }
for _, pattern := range usagePatterns { t.Logf("shl %s, %x", pattern.Register, pattern.Number) code := x86.ShiftLeftNumber(nil, pattern.Register, byte(pattern.Number)) assert.DeepEqual(t, code, pattern.Code) }}
func TestShiftRightNumber(t *testing.T) { usagePatterns := []struct { Register cpu.Register Number int Code []byte }{ {x86.R0, 1, []byte{0x48, 0xC1, 0xE8, 0x01}}, {x86.R1, 1, []byte{0x48, 0xC1, 0xE9, 0x01}}, {x86.R2, 1, []byte{0x48, 0xC1, 0xEA, 0x01}}, {x86.R3, 1, []byte{0x48, 0xC1, 0xEB, 0x01}}, {x86.SP, 1, []byte{0x48, 0xC1, 0xEC, 0x01}}, {x86.R5, 1, []byte{0x48, 0xC1, 0xED, 0x01}}, {x86.R6, 1, []byte{0x48, 0xC1, 0xEE, 0x01}}, {x86.R7, 1, []byte{0x48, 0xC1, 0xEF, 0x01}}, {x86.R8, 1, []byte{0x49, 0xC1, 0xE8, 0x01}}, {x86.R9, 1, []byte{0x49, 0xC1, 0xE9, 0x01}}, {x86.R10, 1, []byte{0x49, 0xC1, 0xEA, 0x01}}, {x86.R11, 1, []byte{0x49, 0xC1, 0xEB, 0x01}}, {x86.R12, 1, []byte{0x49, 0xC1, 0xEC, 0x01}}, {x86.R13, 1, []byte{0x49, 0xC1, 0xED, 0x01}}, {x86.R14, 1, []byte{0x49, 0xC1, 0xEE, 0x01}}, {x86.R15, 1, []byte{0x49, 0xC1, 0xEF, 0x01}}, }
for _, pattern := range usagePatterns { t.Logf("shr %s, %x", pattern.Register, pattern.Number) code := x86.ShiftRightNumber(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 }{ {x86.R0, 1, []byte{0x48, 0xC1, 0xF8, 0x01}}, {x86.R1, 1, []byte{0x48, 0xC1, 0xF9, 0x01}}, {x86.R2, 1, []byte{0x48, 0xC1, 0xFA, 0x01}}, {x86.R3, 1, []byte{0x48, 0xC1, 0xFB, 0x01}}, {x86.SP, 1, []byte{0x48, 0xC1, 0xFC, 0x01}}, {x86.R5, 1, []byte{0x48, 0xC1, 0xFD, 0x01}}, {x86.R6, 1, []byte{0x48, 0xC1, 0xFE, 0x01}}, {x86.R7, 1, []byte{0x48, 0xC1, 0xFF, 0x01}}, {x86.R8, 1, []byte{0x49, 0xC1, 0xF8, 0x01}}, {x86.R9, 1, []byte{0x49, 0xC1, 0xF9, 0x01}}, {x86.R10, 1, []byte{0x49, 0xC1, 0xFA, 0x01}}, {x86.R11, 1, []byte{0x49, 0xC1, 0xFB, 0x01}}, {x86.R12, 1, []byte{0x49, 0xC1, 0xFC, 0x01}}, {x86.R13, 1, []byte{0x49, 0xC1, 0xFD, 0x01}}, {x86.R14, 1, []byte{0x49, 0xC1, 0xFE, 0x01}}, {x86.R15, 1, []byte{0x49, 0xC1, 0xFF, 0x01}}, }
for _, pattern := range usagePatterns { t.Logf("sar %s, %x", pattern.Register, pattern.Number) code := x86.ShiftRightSignedNumber(nil, pattern.Register, byte(pattern.Number)) assert.DeepEqual(t, code, pattern.Code) }}