forked from firedancer-io/radiance
/
asm.go
158 lines (154 loc) · 4.94 KB
/
asm.go
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package sbf
import "fmt"
var mnemonicTable = [0x100]string{
OpLddw: "lddw",
OpLdxb: "ldxb",
OpLdxh: "ldxh",
OpLdxw: "ldxw",
OpLdxdw: "ldxdw",
OpStb: "stb",
OpSth: "sth",
OpStw: "stw",
OpStdw: "stdw",
OpStxb: "stxb",
OpStxh: "stxh",
OpStxw: "stxw",
OpStxdw: "stxdw",
OpAdd32Imm: "add32",
OpAdd32Reg: "add32",
OpSub32Imm: "sub32",
OpSub32Reg: "sub32",
OpMul32Imm: "mul32",
OpMul32Reg: "mul32",
OpDiv32Imm: "div32",
OpDiv32Reg: "div32",
OpOr32Imm: "or32",
OpOr32Reg: "or32",
OpAnd32Imm: "and32",
OpAnd32Reg: "and32",
OpLsh32Imm: "lsh32",
OpLsh32Reg: "lsh32",
OpRsh32Imm: "rsh32",
OpRsh32Reg: "rsh32",
OpNeg32: "neg32",
OpMod32Imm: "mod32",
OpMod32Reg: "mod32",
OpXor32Imm: "xor32",
OpXor32Reg: "xor32",
OpMov32Imm: "mov32",
OpMov32Reg: "mov32",
OpArsh32Imm: "arsh32",
OpArsh32Reg: "arsh32",
OpSdiv32Imm: "sdiv32",
OpSdiv32Reg: "sdiv32",
OpLe: "le",
OpBe: "be",
OpAdd64Imm: "add64",
OpAdd64Reg: "add64",
OpSub64Imm: "sub64",
OpSub64Reg: "sub64",
OpMul64Imm: "mul64",
OpMul64Reg: "mul64",
OpDiv64Imm: "div64",
OpDiv64Reg: "div64",
OpOr64Imm: "or64",
OpOr64Reg: "or64",
OpAnd64Imm: "and64",
OpAnd64Reg: "and64",
OpLsh64Imm: "lsh64",
OpLsh64Reg: "lsh64",
OpRsh64Imm: "rsh64",
OpRsh64Reg: "rsh64",
OpNeg64: "neg64",
OpMod64Imm: "mod64",
OpMod64Reg: "mod64",
OpXor64Imm: "xor64",
OpXor64Reg: "xor64",
OpMov64Imm: "mov64",
OpMov64Reg: "mov64",
OpArsh64Imm: "arsh64",
OpArsh64Reg: "arsh64",
OpSdiv64Imm: "sdiv64",
OpSdiv64Reg: "sdiv64",
OpJa: "ja",
OpJeqImm: "jeq",
OpJeqReg: "jeq",
OpJgtImm: "jgt",
OpJgtReg: "jgt",
OpJgeImm: "jge",
OpJgeReg: "jge",
OpJltImm: "jlt",
OpJltReg: "jlt",
OpJleImm: "jle",
OpJleReg: "jle",
OpJsetImm: "jset",
OpJsetReg: "jset",
OpJneImm: "jne",
OpJneReg: "jne",
OpJsgtImm: "jsgt",
OpJsgtReg: "jsgt",
OpJsgeImm: "jsge",
OpJsgeReg: "jsge",
OpJsltImm: "jslt",
OpJsltReg: "jslt",
OpJsleImm: "jsle",
OpJsleReg: "jsle",
OpCall: "call",
OpCallx: "callx",
OpExit: "exit",
}
func GetOpcodeName(opc uint8) string {
return mnemonicTable[opc]
}
func disassemble(slot Slot, slot2 Slot) string {
opc := slot.Op()
mnemonic := GetOpcodeName(opc)
switch opc {
case OpLddw:
return fmt.Sprintf("lddw r%d, %#x", slot.Dst(), uint64(slot.Uimm())|(uint64(slot2.Uimm())<<32))
case OpLdxb, OpLdxh, OpLdxw, OpLdxdw:
return fmt.Sprintf("%s r%d, [r%d%#+x]", mnemonic, slot.Dst(), slot.Src(), slot.Off())
case OpStb:
return fmt.Sprintf("stb [r%d%#+x], %#x", slot.Src(), slot.Off(), int8(slot.Imm()))
case OpSth:
return fmt.Sprintf("sth [r%d%#+x], %#x", slot.Src(), slot.Off(), int16(slot.Imm()))
case OpStw:
return fmt.Sprintf("stw [r%d%#+x], %#x", slot.Src(), slot.Off(), slot.Imm())
case OpStdw:
return fmt.Sprintf("stdw [r%d%#+x], %#x", slot.Src(), slot.Off(), int64(slot.Imm()))
case OpStxb, OpStxh, OpStxw, OpStxdw:
return fmt.Sprintf("%s [r%d%#+x], r%d", mnemonic, slot.Src(), slot.Off(), slot.Dst())
case OpAdd32Imm, OpSub32Imm, OpAdd64Imm, OpSub64Imm:
return fmt.Sprintf("%s r%d, %#x", mnemonic, slot.Dst(), slot.Imm())
case OpOr32Imm, OpAnd32Imm, OpXor32Imm, OpMov32Imm:
return fmt.Sprintf("%s r%d, %#x", mnemonic, slot.Dst(), slot.Uimm())
case OpDiv32Imm, OpMod32Imm, OpLsh32Imm, OpRsh32Imm, OpArsh32Imm,
OpDiv64Imm, OpMod64Imm, OpLsh64Imm, OpRsh64Imm, OpArsh64Imm:
return fmt.Sprintf("%s r%d, %d", mnemonic, slot.Dst(), slot.Uimm())
case OpMul32Imm, OpSdiv32Imm, OpMul64Imm, OpSdiv64Imm:
return fmt.Sprintf("%s r%d, %d", mnemonic, slot.Dst(), slot.Imm())
case OpOr64Imm, OpAnd64Imm, OpXor64Imm, OpMov64Imm:
return fmt.Sprintf("%s r%d, %#x", mnemonic, slot.Dst(), uint64(slot.Imm()))
case OpAdd32Reg, OpSub32Reg, OpMul32Reg, OpDiv32Reg, OpOr32Reg, OpAnd32Reg, OpLsh32Reg, OpRsh32Reg, OpMod32Reg, OpXor32Reg, OpMov32Reg, OpArsh32Reg, OpSdiv32Reg,
OpAdd64Reg, OpSub64Reg, OpMul64Reg, OpDiv64Reg, OpOr64Reg, OpAnd64Reg, OpLsh64Reg, OpRsh64Reg, OpMod64Reg, OpXor64Reg, OpMov64Reg, OpArsh64Reg, OpSdiv64Reg:
return fmt.Sprintf("%s r%d, r%d", mnemonic, slot.Dst(), slot.Src())
case OpNeg32, OpNeg64:
return fmt.Sprintf("%s r%d", mnemonic, slot.Dst())
case OpLe, OpBe:
return fmt.Sprintf("%s%d r%d", mnemonic, slot.Uimm(), slot.Dst())
case OpJa:
return fmt.Sprintf("ja %+d", slot.Off())
case OpJeqImm, OpJgtImm, OpJgeImm, OpJltImm, OpJleImm, OpJsetImm, OpJneImm, OpJsgtImm, OpJsgeImm, OpJsltImm, OpJsleImm:
return fmt.Sprintf("%s r%d, %#x, %+d", mnemonic, slot.Dst(), int64(slot.Imm()), slot.Off())
case OpJeqReg, OpJgtReg, OpJgeReg, OpJltReg, OpJleReg, OpJsetReg, OpJneReg, OpJsgtReg, OpJsgeReg, OpJsltReg, OpJsleReg:
return fmt.Sprintf("%s r%d, r%d, %+d", mnemonic, slot.Dst(), slot.Src(), slot.Off())
case OpCall:
return fmt.Sprintf("call %#x", slot.Uimm())
case OpCallx:
return fmt.Sprintf("call r%d", slot.Dst())
case OpExit:
return "exit"
default:
return "invalid"
}
}