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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 TestLoadFixedOffset(t *testing.T) { usagePatterns := []struct { Destination cpu.Register Base cpu.Register Offset int32 Length byte Code []byte }{ // No offset {x86.R0, x86.R15, 0, 8, []byte{0x49, 0x8B, 0x07}}, {x86.R0, x86.R15, 0, 4, []byte{0x41, 0x8B, 0x07}}, {x86.R0, x86.R15, 0, 2, []byte{0x66, 0x41, 0x8B, 0x07}}, {x86.R0, x86.R15, 0, 1, []byte{0x41, 0x8A, 0x07}}, {x86.R1, x86.R14, 0, 8, []byte{0x49, 0x8B, 0x0E}}, {x86.R1, x86.R14, 0, 4, []byte{0x41, 0x8B, 0x0E}}, {x86.R1, x86.R14, 0, 2, []byte{0x66, 0x41, 0x8B, 0x0E}}, {x86.R1, x86.R14, 0, 1, []byte{0x41, 0x8A, 0x0E}}, {x86.R2, x86.R13, 0, 8, []byte{0x49, 0x8B, 0x55, 0x00}}, {x86.R2, x86.R13, 0, 4, []byte{0x41, 0x8B, 0x55, 0x00}}, {x86.R2, x86.R13, 0, 2, []byte{0x66, 0x41, 0x8B, 0x55, 0x00}}, {x86.R2, x86.R13, 0, 1, []byte{0x41, 0x8A, 0x55, 0x00}}, {x86.R3, x86.R12, 0, 8, []byte{0x49, 0x8B, 0x1C, 0x24}}, {x86.R3, x86.R12, 0, 4, []byte{0x41, 0x8B, 0x1C, 0x24}}, {x86.R3, x86.R12, 0, 2, []byte{0x66, 0x41, 0x8B, 0x1C, 0x24}}, {x86.R3, x86.R12, 0, 1, []byte{0x41, 0x8A, 0x1C, 0x24}}, {x86.SP, x86.R11, 0, 8, []byte{0x49, 0x8B, 0x23}}, {x86.SP, x86.R11, 0, 4, []byte{0x41, 0x8B, 0x23}}, {x86.SP, x86.R11, 0, 2, []byte{0x66, 0x41, 0x8B, 0x23}}, {x86.SP, x86.R11, 0, 1, []byte{0x41, 0x8A, 0x23}}, {x86.R5, x86.R10, 0, 8, []byte{0x49, 0x8B, 0x2A}}, {x86.R5, x86.R10, 0, 4, []byte{0x41, 0x8B, 0x2A}}, {x86.R5, x86.R10, 0, 2, []byte{0x66, 0x41, 0x8B, 0x2A}}, {x86.R5, x86.R10, 0, 1, []byte{0x41, 0x8A, 0x2A}}, {x86.R6, x86.R9, 0, 8, []byte{0x49, 0x8B, 0x31}}, {x86.R6, x86.R9, 0, 4, []byte{0x41, 0x8B, 0x31}}, {x86.R6, x86.R9, 0, 2, []byte{0x66, 0x41, 0x8B, 0x31}}, {x86.R6, x86.R9, 0, 1, []byte{0x41, 0x8A, 0x31}}, {x86.R7, x86.R8, 0, 8, []byte{0x49, 0x8B, 0x38}}, {x86.R7, x86.R8, 0, 4, []byte{0x41, 0x8B, 0x38}}, {x86.R7, x86.R8, 0, 2, []byte{0x66, 0x41, 0x8B, 0x38}}, {x86.R7, x86.R8, 0, 1, []byte{0x41, 0x8A, 0x38}}, {x86.R8, x86.R7, 0, 8, []byte{0x4C, 0x8B, 0x07}}, {x86.R8, x86.R7, 0, 4, []byte{0x44, 0x8B, 0x07}}, {x86.R8, x86.R7, 0, 2, []byte{0x66, 0x44, 0x8B, 0x07}}, {x86.R8, x86.R7, 0, 1, []byte{0x44, 0x8A, 0x07}}, {x86.R9, x86.R6, 0, 8, []byte{0x4C, 0x8B, 0x0E}}, {x86.R9, x86.R6, 0, 4, []byte{0x44, 0x8B, 0x0E}}, {x86.R9, x86.R6, 0, 2, []byte{0x66, 0x44, 0x8B, 0x0E}}, {x86.R9, x86.R6, 0, 1, []byte{0x44, 0x8A, 0x0E}}, {x86.R10, x86.R5, 0, 8, []byte{0x4C, 0x8B, 0x55, 0x00}}, {x86.R10, x86.R5, 0, 4, []byte{0x44, 0x8B, 0x55, 0x00}}, {x86.R10, x86.R5, 0, 2, []byte{0x66, 0x44, 0x8B, 0x55, 0x00}}, {x86.R10, x86.R5, 0, 1, []byte{0x44, 0x8A, 0x55, 0x00}}, {x86.R11, x86.SP, 0, 8, []byte{0x4C, 0x8B, 0x1C, 0x24}}, {x86.R11, x86.SP, 0, 4, []byte{0x44, 0x8B, 0x1C, 0x24}}, {x86.R11, x86.SP, 0, 2, []byte{0x66, 0x44, 0x8B, 0x1C, 0x24}}, {x86.R11, x86.SP, 0, 1, []byte{0x44, 0x8A, 0x1C, 0x24}}, {x86.R12, x86.R3, 0, 8, []byte{0x4C, 0x8B, 0x23}}, {x86.R12, x86.R3, 0, 4, []byte{0x44, 0x8B, 0x23}}, {x86.R12, x86.R3, 0, 2, []byte{0x66, 0x44, 0x8B, 0x23}}, {x86.R12, x86.R3, 0, 1, []byte{0x44, 0x8A, 0x23}}, {x86.R13, x86.R2, 0, 8, []byte{0x4C, 0x8B, 0x2A}}, {x86.R13, x86.R2, 0, 4, []byte{0x44, 0x8B, 0x2A}}, {x86.R13, x86.R2, 0, 2, []byte{0x66, 0x44, 0x8B, 0x2A}}, {x86.R13, x86.R2, 0, 1, []byte{0x44, 0x8A, 0x2A}}, {x86.R14, x86.R1, 0, 8, []byte{0x4C, 0x8B, 0x31}}, {x86.R14, x86.R1, 0, 4, []byte{0x44, 0x8B, 0x31}}, {x86.R14, x86.R1, 0, 2, []byte{0x66, 0x44, 0x8B, 0x31}}, {x86.R14, x86.R1, 0, 1, []byte{0x44, 0x8A, 0x31}}, {x86.R15, x86.R0, 0, 8, []byte{0x4C, 0x8B, 0x38}}, {x86.R15, x86.R0, 0, 4, []byte{0x44, 0x8B, 0x38}}, {x86.R15, x86.R0, 0, 2, []byte{0x66, 0x44, 0x8B, 0x38}}, {x86.R15, x86.R0, 0, 1, []byte{0x44, 0x8A, 0x38}},
// Offset of 1 {x86.R0, x86.R15, 1, 8, []byte{0x49, 0x8B, 0x47, 0x01}}, {x86.R0, x86.R15, 1, 4, []byte{0x41, 0x8B, 0x47, 0x01}}, {x86.R0, x86.R15, 1, 2, []byte{0x66, 0x41, 0x8B, 0x47, 0x01}}, {x86.R0, x86.R15, 1, 1, []byte{0x41, 0x8A, 0x47, 0x01}}, {x86.R1, x86.R14, 1, 8, []byte{0x49, 0x8B, 0x4E, 0x01}}, {x86.R1, x86.R14, 1, 4, []byte{0x41, 0x8B, 0x4E, 0x01}}, {x86.R1, x86.R14, 1, 2, []byte{0x66, 0x41, 0x8B, 0x4E, 0x01}}, {x86.R1, x86.R14, 1, 1, []byte{0x41, 0x8A, 0x4E, 0x01}}, {x86.R2, x86.R13, 1, 8, []byte{0x49, 0x8B, 0x55, 0x01}}, {x86.R2, x86.R13, 1, 4, []byte{0x41, 0x8B, 0x55, 0x01}}, {x86.R2, x86.R13, 1, 2, []byte{0x66, 0x41, 0x8B, 0x55, 0x01}}, {x86.R2, x86.R13, 1, 1, []byte{0x41, 0x8A, 0x55, 0x01}}, {x86.R3, x86.R12, 1, 8, []byte{0x49, 0x8B, 0x5C, 0x24, 0x01}}, {x86.R3, x86.R12, 1, 4, []byte{0x41, 0x8B, 0x5C, 0x24, 0x01}}, {x86.R3, x86.R12, 1, 2, []byte{0x66, 0x41, 0x8B, 0x5C, 0x24, 0x01}}, {x86.R3, x86.R12, 1, 1, []byte{0x41, 0x8A, 0x5C, 0x24, 0x01}}, {x86.SP, x86.R11, 1, 8, []byte{0x49, 0x8B, 0x63, 0x01}}, {x86.SP, x86.R11, 1, 4, []byte{0x41, 0x8B, 0x63, 0x01}}, {x86.SP, x86.R11, 1, 2, []byte{0x66, 0x41, 0x8B, 0x63, 0x01}}, {x86.SP, x86.R11, 1, 1, []byte{0x41, 0x8A, 0x63, 0x01}}, {x86.R5, x86.R10, 1, 8, []byte{0x49, 0x8B, 0x6A, 0x01}}, {x86.R5, x86.R10, 1, 4, []byte{0x41, 0x8B, 0x6A, 0x01}}, {x86.R5, x86.R10, 1, 2, []byte{0x66, 0x41, 0x8B, 0x6A, 0x01}}, {x86.R5, x86.R10, 1, 1, []byte{0x41, 0x8A, 0x6A, 0x01}}, {x86.R6, x86.R9, 1, 8, []byte{0x49, 0x8B, 0x71, 0x01}}, {x86.R6, x86.R9, 1, 4, []byte{0x41, 0x8B, 0x71, 0x01}}, {x86.R6, x86.R9, 1, 2, []byte{0x66, 0x41, 0x8B, 0x71, 0x01}}, {x86.R6, x86.R9, 1, 1, []byte{0x41, 0x8A, 0x71, 0x01}}, {x86.R7, x86.R8, 1, 8, []byte{0x49, 0x8B, 0x78, 0x01}}, {x86.R7, x86.R8, 1, 4, []byte{0x41, 0x8B, 0x78, 0x01}}, {x86.R7, x86.R8, 1, 2, []byte{0x66, 0x41, 0x8B, 0x78, 0x01}}, {x86.R7, x86.R8, 1, 1, []byte{0x41, 0x8A, 0x78, 0x01}}, {x86.R8, x86.R7, 1, 8, []byte{0x4C, 0x8B, 0x47, 0x01}}, {x86.R8, x86.R7, 1, 4, []byte{0x44, 0x8B, 0x47, 0x01}}, {x86.R8, x86.R7, 1, 2, []byte{0x66, 0x44, 0x8B, 0x47, 0x01}}, {x86.R8, x86.R7, 1, 1, []byte{0x44, 0x8A, 0x47, 0x01}}, {x86.R9, x86.R6, 1, 8, []byte{0x4C, 0x8B, 0x4E, 0x01}}, {x86.R9, x86.R6, 1, 4, []byte{0x44, 0x8B, 0x4E, 0x01}}, {x86.R9, x86.R6, 1, 2, []byte{0x66, 0x44, 0x8B, 0x4E, 0x01}}, {x86.R9, x86.R6, 1, 1, []byte{0x44, 0x8A, 0x4E, 0x01}}, {x86.R10, x86.R5, 1, 8, []byte{0x4C, 0x8B, 0x55, 0x01}}, {x86.R10, x86.R5, 1, 4, []byte{0x44, 0x8B, 0x55, 0x01}}, {x86.R10, x86.R5, 1, 2, []byte{0x66, 0x44, 0x8B, 0x55, 0x01}}, {x86.R10, x86.R5, 1, 1, []byte{0x44, 0x8A, 0x55, 0x01}}, {x86.R11, x86.SP, 1, 8, []byte{0x4C, 0x8B, 0x5C, 0x24, 0x01}}, {x86.R11, x86.SP, 1, 4, []byte{0x44, 0x8B, 0x5C, 0x24, 0x01}}, {x86.R11, x86.SP, 1, 2, []byte{0x66, 0x44, 0x8B, 0x5C, 0x24, 0x01}}, {x86.R11, x86.SP, 1, 1, []byte{0x44, 0x8A, 0x5C, 0x24, 0x01}}, {x86.R12, x86.R3, 1, 8, []byte{0x4C, 0x8B, 0x63, 0x01}}, {x86.R12, x86.R3, 1, 4, []byte{0x44, 0x8B, 0x63, 0x01}}, {x86.R12, x86.R3, 1, 2, []byte{0x66, 0x44, 0x8B, 0x63, 0x01}}, {x86.R12, x86.R3, 1, 1, []byte{0x44, 0x8A, 0x63, 0x01}}, {x86.R13, x86.R2, 1, 8, []byte{0x4C, 0x8B, 0x6A, 0x01}}, {x86.R13, x86.R2, 1, 4, []byte{0x44, 0x8B, 0x6A, 0x01}}, {x86.R13, x86.R2, 1, 2, []byte{0x66, 0x44, 0x8B, 0x6A, 0x01}}, {x86.R13, x86.R2, 1, 1, []byte{0x44, 0x8A, 0x6A, 0x01}}, {x86.R14, x86.R1, 1, 8, []byte{0x4C, 0x8B, 0x71, 0x01}}, {x86.R14, x86.R1, 1, 4, []byte{0x44, 0x8B, 0x71, 0x01}}, {x86.R14, x86.R1, 1, 2, []byte{0x66, 0x44, 0x8B, 0x71, 0x01}}, {x86.R14, x86.R1, 1, 1, []byte{0x44, 0x8A, 0x71, 0x01}}, {x86.R15, x86.R0, 1, 8, []byte{0x4C, 0x8B, 0x78, 0x01}}, {x86.R15, x86.R0, 1, 4, []byte{0x44, 0x8B, 0x78, 0x01}}, {x86.R15, x86.R0, 1, 2, []byte{0x66, 0x44, 0x8B, 0x78, 0x01}}, {x86.R15, x86.R0, 1, 1, []byte{0x44, 0x8A, 0x78, 0x01}},
// Offset of 65535 {x86.R0, x86.R15, 65535, 8, []byte{0x49, 0x8B, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R0, x86.R15, 65535, 4, []byte{0x41, 0x8B, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R0, x86.R15, 65535, 2, []byte{0x66, 0x41, 0x8B, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R0, x86.R15, 65535, 1, []byte{0x41, 0x8A, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R1, x86.R14, 65535, 8, []byte{0x49, 0x8B, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R1, x86.R14, 65535, 4, []byte{0x41, 0x8B, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R1, x86.R14, 65535, 2, []byte{0x66, 0x41, 0x8B, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R1, x86.R14, 65535, 1, []byte{0x41, 0x8A, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R2, x86.R13, 65535, 8, []byte{0x49, 0x8B, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R2, x86.R13, 65535, 4, []byte{0x41, 0x8B, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R2, x86.R13, 65535, 2, []byte{0x66, 0x41, 0x8B, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R2, x86.R13, 65535, 1, []byte{0x41, 0x8A, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R3, x86.R12, 65535, 8, []byte{0x49, 0x8B, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R3, x86.R12, 65535, 4, []byte{0x41, 0x8B, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R3, x86.R12, 65535, 2, []byte{0x66, 0x41, 0x8B, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R3, x86.R12, 65535, 1, []byte{0x41, 0x8A, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.SP, x86.R11, 65535, 8, []byte{0x49, 0x8B, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.SP, x86.R11, 65535, 4, []byte{0x41, 0x8B, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.SP, x86.R11, 65535, 2, []byte{0x66, 0x41, 0x8B, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.SP, x86.R11, 65535, 1, []byte{0x41, 0x8A, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R5, x86.R10, 65535, 8, []byte{0x49, 0x8B, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R5, x86.R10, 65535, 4, []byte{0x41, 0x8B, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R5, x86.R10, 65535, 2, []byte{0x66, 0x41, 0x8B, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R5, x86.R10, 65535, 1, []byte{0x41, 0x8A, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R6, x86.R9, 65535, 8, []byte{0x49, 0x8B, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R6, x86.R9, 65535, 4, []byte{0x41, 0x8B, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R6, x86.R9, 65535, 2, []byte{0x66, 0x41, 0x8B, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R6, x86.R9, 65535, 1, []byte{0x41, 0x8A, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R7, x86.R8, 65535, 8, []byte{0x49, 0x8B, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R7, x86.R8, 65535, 4, []byte{0x41, 0x8B, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R7, x86.R8, 65535, 2, []byte{0x66, 0x41, 0x8B, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R7, x86.R8, 65535, 1, []byte{0x41, 0x8A, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R8, x86.R7, 65535, 8, []byte{0x4C, 0x8B, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R8, x86.R7, 65535, 4, []byte{0x44, 0x8B, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R8, x86.R7, 65535, 2, []byte{0x66, 0x44, 0x8B, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R8, x86.R7, 65535, 1, []byte{0x44, 0x8A, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R9, x86.R6, 65535, 8, []byte{0x4C, 0x8B, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R9, x86.R6, 65535, 4, []byte{0x44, 0x8B, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R9, x86.R6, 65535, 2, []byte{0x66, 0x44, 0x8B, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R9, x86.R6, 65535, 1, []byte{0x44, 0x8A, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R10, x86.R5, 65535, 8, []byte{0x4C, 0x8B, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R10, x86.R5, 65535, 4, []byte{0x44, 0x8B, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R10, x86.R5, 65535, 2, []byte{0x66, 0x44, 0x8B, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R10, x86.R5, 65535, 1, []byte{0x44, 0x8A, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R11, x86.SP, 65535, 8, []byte{0x4C, 0x8B, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R11, x86.SP, 65535, 4, []byte{0x44, 0x8B, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R11, x86.SP, 65535, 2, []byte{0x66, 0x44, 0x8B, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R11, x86.SP, 65535, 1, []byte{0x44, 0x8A, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R12, x86.R3, 65535, 8, []byte{0x4C, 0x8B, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R12, x86.R3, 65535, 4, []byte{0x44, 0x8B, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R12, x86.R3, 65535, 2, []byte{0x66, 0x44, 0x8B, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R12, x86.R3, 65535, 1, []byte{0x44, 0x8A, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R13, x86.R2, 65535, 8, []byte{0x4C, 0x8B, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R13, x86.R2, 65535, 4, []byte{0x44, 0x8B, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R13, x86.R2, 65535, 2, []byte{0x66, 0x44, 0x8B, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R13, x86.R2, 65535, 1, []byte{0x44, 0x8A, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R14, x86.R1, 65535, 8, []byte{0x4C, 0x8B, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R14, x86.R1, 65535, 4, []byte{0x44, 0x8B, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R14, x86.R1, 65535, 2, []byte{0x66, 0x44, 0x8B, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R14, x86.R1, 65535, 1, []byte{0x44, 0x8A, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R15, x86.R0, 65535, 8, []byte{0x4C, 0x8B, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R15, x86.R0, 65535, 4, []byte{0x44, 0x8B, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R15, x86.R0, 65535, 2, []byte{0x66, 0x44, 0x8B, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R15, x86.R0, 65535, 1, []byte{0x44, 0x8A, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, }
for _, pattern := range usagePatterns { t.Logf("mov %s, %dB [%s+%d]", pattern.Destination, pattern.Length, pattern.Base, pattern.Offset) code := x86.LoadFixedOffset(nil, pattern.Destination, pattern.Base, pattern.Offset, pattern.Length) assert.DeepEqual(t, code, pattern.Code) }}
func TestLoadFixedOffsetSignExtend(t *testing.T) { usagePatterns := []struct { Destination cpu.Register Base cpu.Register Offset int32 Length byte Code []byte }{ // No offset {x86.R0, x86.R15, 0, 4, []byte{0x49, 0x63, 0x07}}, {x86.R0, x86.R15, 0, 2, []byte{0x49, 0x0F, 0xBF, 0x07}}, {x86.R0, x86.R15, 0, 1, []byte{0x49, 0x0F, 0xBE, 0x07}}, {x86.R1, x86.R14, 0, 4, []byte{0x49, 0x63, 0x0E}}, {x86.R1, x86.R14, 0, 2, []byte{0x49, 0x0F, 0xBF, 0x0E}}, {x86.R1, x86.R14, 0, 1, []byte{0x49, 0x0F, 0xBE, 0x0E}}, {x86.R2, x86.R13, 0, 4, []byte{0x49, 0x63, 0x55, 0x00}}, {x86.R2, x86.R13, 0, 2, []byte{0x49, 0x0F, 0xBF, 0x55, 0x00}}, {x86.R2, x86.R13, 0, 1, []byte{0x49, 0x0F, 0xBE, 0x55, 0x00}}, {x86.R3, x86.R12, 0, 4, []byte{0x49, 0x63, 0x1C, 0x24}}, {x86.R3, x86.R12, 0, 2, []byte{0x49, 0x0F, 0xBF, 0x1C, 0x24}}, {x86.R3, x86.R12, 0, 1, []byte{0x49, 0x0F, 0xBE, 0x1C, 0x24}}, {x86.SP, x86.R11, 0, 4, []byte{0x49, 0x63, 0x23}}, {x86.SP, x86.R11, 0, 2, []byte{0x49, 0x0F, 0xBF, 0x23}}, {x86.SP, x86.R11, 0, 1, []byte{0x49, 0x0F, 0xBE, 0x23}}, {x86.R5, x86.R10, 0, 4, []byte{0x49, 0x63, 0x2A}}, {x86.R5, x86.R10, 0, 2, []byte{0x49, 0x0F, 0xBF, 0x2A}}, {x86.R5, x86.R10, 0, 1, []byte{0x49, 0x0F, 0xBE, 0x2A}}, {x86.R6, x86.R9, 0, 4, []byte{0x49, 0x63, 0x31}}, {x86.R6, x86.R9, 0, 2, []byte{0x49, 0x0F, 0xBF, 0x31}}, {x86.R6, x86.R9, 0, 1, []byte{0x49, 0x0F, 0xBE, 0x31}}, {x86.R7, x86.R8, 0, 4, []byte{0x49, 0x63, 0x38}}, {x86.R7, x86.R8, 0, 2, []byte{0x49, 0x0F, 0xBF, 0x38}}, {x86.R7, x86.R8, 0, 1, []byte{0x49, 0x0F, 0xBE, 0x38}}, {x86.R8, x86.R7, 0, 4, []byte{0x4C, 0x63, 0x07}}, {x86.R8, x86.R7, 0, 2, []byte{0x4C, 0x0F, 0xBF, 0x07}}, {x86.R8, x86.R7, 0, 1, []byte{0x4C, 0x0F, 0xBE, 0x07}}, {x86.R9, x86.R6, 0, 4, []byte{0x4C, 0x63, 0x0E}}, {x86.R9, x86.R6, 0, 2, []byte{0x4C, 0x0F, 0xBF, 0x0E}}, {x86.R9, x86.R6, 0, 1, []byte{0x4C, 0x0F, 0xBE, 0x0E}}, {x86.R10, x86.R5, 0, 4, []byte{0x4C, 0x63, 0x55, 0x00}}, {x86.R10, x86.R5, 0, 2, []byte{0x4C, 0x0F, 0xBF, 0x55, 0x00}}, {x86.R10, x86.R5, 0, 1, []byte{0x4C, 0x0F, 0xBE, 0x55, 0x00}}, {x86.R11, x86.SP, 0, 4, []byte{0x4C, 0x63, 0x1C, 0x24}}, {x86.R11, x86.SP, 0, 2, []byte{0x4C, 0x0F, 0xBF, 0x1C, 0x24}}, {x86.R11, x86.SP, 0, 1, []byte{0x4C, 0x0F, 0xBE, 0x1C, 0x24}}, {x86.R12, x86.R3, 0, 4, []byte{0x4C, 0x63, 0x23}}, {x86.R12, x86.R3, 0, 2, []byte{0x4C, 0x0F, 0xBF, 0x23}}, {x86.R12, x86.R3, 0, 1, []byte{0x4C, 0x0F, 0xBE, 0x23}}, {x86.R13, x86.R2, 0, 4, []byte{0x4C, 0x63, 0x2A}}, {x86.R13, x86.R2, 0, 2, []byte{0x4C, 0x0F, 0xBF, 0x2A}}, {x86.R13, x86.R2, 0, 1, []byte{0x4C, 0x0F, 0xBE, 0x2A}}, {x86.R14, x86.R1, 0, 4, []byte{0x4C, 0x63, 0x31}}, {x86.R14, x86.R1, 0, 2, []byte{0x4C, 0x0F, 0xBF, 0x31}}, {x86.R14, x86.R1, 0, 1, []byte{0x4C, 0x0F, 0xBE, 0x31}}, {x86.R15, x86.R0, 0, 4, []byte{0x4C, 0x63, 0x38}}, {x86.R15, x86.R0, 0, 2, []byte{0x4C, 0x0F, 0xBF, 0x38}}, {x86.R15, x86.R0, 0, 1, []byte{0x4C, 0x0F, 0xBE, 0x38}},
// Offset of 65535 {x86.R0, x86.R15, 65535, 4, []byte{0x49, 0x63, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R0, x86.R15, 65535, 2, []byte{0x49, 0x0F, 0xBF, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R0, x86.R15, 65535, 1, []byte{0x49, 0x0F, 0xBE, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R1, x86.R14, 65535, 4, []byte{0x49, 0x63, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R1, x86.R14, 65535, 2, []byte{0x49, 0x0F, 0xBF, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R1, x86.R14, 65535, 1, []byte{0x49, 0x0F, 0xBE, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R2, x86.R13, 65535, 4, []byte{0x49, 0x63, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R2, x86.R13, 65535, 2, []byte{0x49, 0x0F, 0xBF, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R2, x86.R13, 65535, 1, []byte{0x49, 0x0F, 0xBE, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R3, x86.R12, 65535, 4, []byte{0x49, 0x63, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R3, x86.R12, 65535, 2, []byte{0x49, 0x0F, 0xBF, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R3, x86.R12, 65535, 1, []byte{0x49, 0x0F, 0xBE, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.SP, x86.R11, 65535, 4, []byte{0x49, 0x63, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.SP, x86.R11, 65535, 2, []byte{0x49, 0x0F, 0xBF, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.SP, x86.R11, 65535, 1, []byte{0x49, 0x0F, 0xBE, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R5, x86.R10, 65535, 4, []byte{0x49, 0x63, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R5, x86.R10, 65535, 2, []byte{0x49, 0x0F, 0xBF, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R5, x86.R10, 65535, 1, []byte{0x49, 0x0F, 0xBE, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R6, x86.R9, 65535, 4, []byte{0x49, 0x63, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R6, x86.R9, 65535, 2, []byte{0x49, 0x0F, 0xBF, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R6, x86.R9, 65535, 1, []byte{0x49, 0x0F, 0xBE, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R7, x86.R8, 65535, 4, []byte{0x49, 0x63, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R7, x86.R8, 65535, 2, []byte{0x49, 0x0F, 0xBF, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R7, x86.R8, 65535, 1, []byte{0x49, 0x0F, 0xBE, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R8, x86.R7, 65535, 4, []byte{0x4C, 0x63, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R8, x86.R7, 65535, 2, []byte{0x4C, 0x0F, 0xBF, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R8, x86.R7, 65535, 1, []byte{0x4C, 0x0F, 0xBE, 0x87, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R9, x86.R6, 65535, 4, []byte{0x4C, 0x63, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R9, x86.R6, 65535, 2, []byte{0x4C, 0x0F, 0xBF, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R9, x86.R6, 65535, 1, []byte{0x4C, 0x0F, 0xBE, 0x8E, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R10, x86.R5, 65535, 4, []byte{0x4C, 0x63, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R10, x86.R5, 65535, 2, []byte{0x4C, 0x0F, 0xBF, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R10, x86.R5, 65535, 1, []byte{0x4C, 0x0F, 0xBE, 0x95, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R11, x86.SP, 65535, 4, []byte{0x4C, 0x63, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R11, x86.SP, 65535, 2, []byte{0x4C, 0x0F, 0xBF, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R11, x86.SP, 65535, 1, []byte{0x4C, 0x0F, 0xBE, 0x9C, 0x24, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R12, x86.R3, 65535, 4, []byte{0x4C, 0x63, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R12, x86.R3, 65535, 2, []byte{0x4C, 0x0F, 0xBF, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R12, x86.R3, 65535, 1, []byte{0x4C, 0x0F, 0xBE, 0xA3, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R13, x86.R2, 65535, 4, []byte{0x4C, 0x63, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R13, x86.R2, 65535, 2, []byte{0x4C, 0x0F, 0xBF, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R13, x86.R2, 65535, 1, []byte{0x4C, 0x0F, 0xBE, 0xAA, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R14, x86.R1, 65535, 4, []byte{0x4C, 0x63, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R14, x86.R1, 65535, 2, []byte{0x4C, 0x0F, 0xBF, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R14, x86.R1, 65535, 1, []byte{0x4C, 0x0F, 0xBE, 0xB1, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R15, x86.R0, 65535, 4, []byte{0x4C, 0x63, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R15, x86.R0, 65535, 2, []byte{0x4C, 0x0F, 0xBF, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, {x86.R15, x86.R0, 65535, 1, []byte{0x4C, 0x0F, 0xBE, 0xB8, 0xFF, 0xFF, 0x00, 0x00}}, }
for _, pattern := range usagePatterns { t.Logf("movsx %s, %dB [%s+%d]", pattern.Destination, pattern.Length, pattern.Base, pattern.Offset) code := x86.LoadFixedOffsetSignExtend(nil, pattern.Destination, pattern.Base, pattern.Offset, pattern.Length) assert.DeepEqual(t, code, pattern.Code) }}
func TestLoadFixedOffsetZeroExtend(t *testing.T) { usagePatterns := []struct { Destination cpu.Register Base cpu.Register Offset int32 Length byte Code []byte }{ // No offset {x86.R0, x86.R15, 0, 2, []byte{0x49, 0x0F, 0xB7, 0x07}}, {x86.R0, x86.R15, 0, 1, []byte{0x49, 0x0F, 0xB6, 0x07}}, {x86.R1, x86.R14, 0, 2, []byte{0x49, 0x0F, 0xB7, 0x0E}}, {x86.R1, x86.R14, 0, 1, []byte{0x49, 0x0F, 0xB6, 0x0E}}, {x86.R2, x86.R13, 0, 2, []byte{0x49, 0x0F, 0xB7, 0x55, 0x00}}, {x86.R2, x86.R13, 0, 1, []byte{0x49, 0x0F, 0xB6, 0x55, 0x00}}, {x86.R3, x86.R12, 0, 2, []byte{0x49, 0x0F, 0xB7, 0x1C, 0x24}}, {x86.R3, x86.R12, 0, 1, []byte{0x49, 0x0F, 0xB6, 0x1C, 0x24}}, {x86.SP, x86.R11, 0, 2, []byte{0x49, 0x0F, 0xB7, 0x23}}, {x86.SP, x86.R11, 0, 1, []byte{0x49, 0x0F, 0xB6, 0x23}}, {x86.R5, x86.R10, 0, 2, []byte{0x49, 0x0F, 0xB7, 0x2A}}, {x86.R5, x86.R10, 0, 1, []byte{0x49, 0x0F, 0xB6, 0x2A}}, {x86.R6, x86.R9, 0, 2, []byte{0x49, 0x0F, 0xB7, 0x31}}, {x86.R6, x86.R9, 0, 1, []byte{0x49, 0x0F, 0xB6, 0x31}}, {x86.R7, x86.R8, 0, 2, []byte{0x49, 0x0F, 0xB7, 0x38}}, {x86.R7, x86.R8, 0, 1, []byte{0x49, 0x0F, 0xB6, 0x38}}, {x86.R8, x86.R7, 0, 2, []byte{0x4C, 0x0F, 0xB7, 0x07}}, {x86.R8, x86.R7, 0, 1, []byte{0x4C, 0x0F, 0xB6, 0x07}}, {x86.R9, x86.R6, 0, 2, []byte{0x4C, 0x0F, 0xB7, 0x0E}}, {x86.R9, x86.R6, 0, 1, []byte{0x4C, 0x0F, 0xB6, 0x0E}}, {x86.R10, x86.R5, 0, 2, []byte{0x4C, 0x0F, 0xB7, 0x55, 0x00}}, {x86.R10, x86.R5, 0, 1, []byte{0x4C, 0x0F, 0xB6, 0x55, 0x00}}, {x86.R11, x86.SP, 0, 2, []byte{0x4C, 0x0F, 0xB7, 0x1C, 0x24}}, {x86.R11, x86.SP, 0, 1, []byte{0x4C, 0x0F, 0xB6, 0x1C, 0x24}}, {x86.R12, x86.R3, 0, 2, []byte{0x4C, 0x0F, 0xB7, 0x23}}, {x86.R12, x86.R3, 0, 1, []byte{0x4C, 0x0F, 0xB6, 0x23}}, {x86.R13, x86.R2, 0, 2, []byte{0x4C, 0x0F, 0xB7, 0x2A}}, {x86.R13, x86.R2, 0, 1, []byte{0x4C, 0x0F, 0xB6, 0x2A}}, {x86.R14, x86.R1, 0, 2, []byte{0x4C, 0x0F, 0xB7, 0x31}}, {x86.R14, x86.R1, 0, 1, []byte{0x4C, 0x0F, 0xB6, 0x31}}, {x86.R15, x86.R0, 0, 2, []byte{0x4C, 0x0F, 0xB7, 0x38}}, {x86.R15, x86.R0, 0, 1, []byte{0x4C, 0x0F, 0xB6, 0x38}}, }
for _, pattern := range usagePatterns { t.Logf("movzx %s, %dB [%s+%d]", pattern.Destination, pattern.Length, pattern.Base, pattern.Offset) code := x86.LoadFixedOffsetZeroExtend(nil, pattern.Destination, pattern.Base, pattern.Offset, pattern.Length) assert.DeepEqual(t, code, pattern.Code) }}