1 files changed, 116 insertions, 0 deletions
diff --git a/lib/Target/MSP430/AsmPrinter/MSP430InstPrinter.cpp b/lib/Target/MSP430/AsmPrinter/MSP430InstPrinter.cpp
new file mode 100644
index 0000000..a3ecc67
--- /dev/null
+++ b/lib/Target/MSP430/AsmPrinter/MSP430InstPrinter.cpp
@@ -0,0 +1,116 @@
+//===-- MSP430InstPrinter.cpp - Convert MSP430 MCInst to assembly syntax --===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This class prints an MSP430 MCInst to a .s file.
+//
+//===----------------------------------------------------------------------===//
+
+#define DEBUG_TYPE "asm-printer"
+#include "MSP430.h"
+#include "MSP430InstrInfo.h"
+#include "MSP430InstPrinter.h"
+#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormattedStream.h"
+using namespace llvm;
+
+
+// Include the auto-generated portion of the assembly writer.
+#define MachineInstr MCInst
+#define MSP430AsmPrinter MSP430InstPrinter  // FIXME: REMOVE.
+#define NO_ASM_WRITER_BOILERPLATE
+#include "MSP430GenAsmWriter.inc"
+#undef MachineInstr
+#undef MSP430AsmPrinter
+
+void MSP430InstPrinter::printInst(const MCInst *MI) {
+  printInstruction(MI);
+}
+
+void MSP430InstPrinter::printPCRelImmOperand(const MCInst *MI, unsigned OpNo) {
+  const MCOperand &Op = MI->getOperand(OpNo);
+  if (Op.isImm())
+    O << Op.getImm();
+  else {
+    assert(Op.isExpr() && "unknown pcrel immediate operand");
+    Op.getExpr()->print(O, &MAI);
+  }
+}
+
+void MSP430InstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
+                                     const char *Modifier) {
+  assert((Modifier == 0 || Modifier[0] == 0) && "No modifiers supported");
+  const MCOperand &Op = MI->getOperand(OpNo);
+  if (Op.isReg()) {
+    O << getRegisterName(Op.getReg());
+  } else if (Op.isImm()) {
+    O << '#' << Op.getImm();
+  } else {
+    assert(Op.isExpr() && "unknown operand kind in printOperand");
+    O << '#';
+    Op.getExpr()->print(O, &MAI);
+  }
+}
+
+void MSP430InstPrinter::printSrcMemOperand(const MCInst *MI, unsigned OpNo,
+                                           const char *Modifier) {
+  const MCOperand &Base = MI->getOperand(OpNo);
+  const MCOperand &Disp = MI->getOperand(OpNo+1);
+
+  // FIXME: move global to displacement field!
+  if (Base.isExpr()) {
+    O << '&';
+    Base.getExpr()->print(O, &MAI);
+  } else if (Disp.isImm() && !Base.isReg())
+    printOperand(MI, OpNo);
+  else if (Base.isReg()) {
+    if (Disp.getImm()) {
+      O << Disp.getImm() << '(';
+      printOperand(MI, OpNo);
+      O << ')';
+    } else {
+      O << '@';
+      printOperand(MI, OpNo);
+    }
+  } else {
+    Base.dump();
+    Disp.dump();
+    llvm_unreachable("Unsupported memory operand");
+  }
+}
+
+void MSP430InstPrinter::printCCOperand(const MCInst *MI, unsigned OpNo) {
+  unsigned CC = MI->getOperand(OpNo).getImm();
+
+  switch (CC) {
+  default:
+   llvm_unreachable("Unsupported CC code");
+   break;
+  case MSP430CC::COND_E:
+   O << "eq";
+   break;
+  case MSP430CC::COND_NE:
+   O << "ne";
+   break;
+  case MSP430CC::COND_HS:
+   O << "hs";
+   break;
+  case MSP430CC::COND_LO:
+   O << "lo";
+   break;
+  case MSP430CC::COND_GE:
+   O << "ge";
+   break;
+  case MSP430CC::COND_L:
+   O << 'l';
+   break;
+  }
+}