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https://github.com/c64scene-ar/llvm-6502.git
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41400da31e
2. Parsing .word directive in MBlaze asm parser 3. Fixing hack where memory instructions reversed order of last two parameters 4. Fixing many improperly encoded instructions 5. Support parsing special instructions (MFS,MTS,etc.) 6. Removing unused functions from inst printer git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118941 91177308-0d34-0410-b5e6-96231b3b80d8
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
//===-- MBlazeInstPrinter.cpp - Convert MBlaze MCInst to assembly syntax --===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This class prints an MBlaze MCInst to a .s file.
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//
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//===----------------------------------------------------------------------===//
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#define DEBUG_TYPE "asm-printer"
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#include "MBlaze.h"
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#include "MBlazeInstPrinter.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCAsmInfo.h"
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#include "llvm/MC/MCExpr.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/FormattedStream.h"
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using namespace llvm;
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// Include the auto-generated portion of the assembly writer.
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#include "MBlazeGenAsmWriter.inc"
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void MBlazeInstPrinter::printInst(const MCInst *MI, raw_ostream &O) {
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printInstruction(MI, O);
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}
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void MBlazeInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
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raw_ostream &O, const char *Modifier) {
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assert((Modifier == 0 || Modifier[0] == 0) && "No modifiers supported");
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const MCOperand &Op = MI->getOperand(OpNo);
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if (Op.isReg()) {
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O << getRegisterName(Op.getReg());
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} else if (Op.isImm()) {
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O << (int32_t)Op.getImm();
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} else {
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assert(Op.isExpr() && "unknown operand kind in printOperand");
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O << *Op.getExpr();
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}
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}
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void MBlazeInstPrinter::printFSLImm(const MCInst *MI, int OpNo,
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raw_ostream &O) {
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const MCOperand &MO = MI->getOperand(OpNo);
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if (MO.isImm())
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O << "rfsl" << MO.getImm();
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else
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printOperand(MI, OpNo, O, NULL);
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}
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void MBlazeInstPrinter::printUnsignedImm(const MCInst *MI, int OpNo,
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raw_ostream &O) {
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const MCOperand &MO = MI->getOperand(OpNo);
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if (MO.isImm())
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O << MO.getImm();
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else
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printOperand(MI, OpNo, O, NULL);
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}
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void MBlazeInstPrinter::printMemOperand(const MCInst *MI, int OpNo,
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raw_ostream &O, const char *Modifier) {
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printOperand(MI, OpNo, O, NULL);
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O << ", ";
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printOperand(MI, OpNo+1, O, NULL);
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}
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