llvm-6502/lib/Target/X86/X86.td
2003-08-06 15:32:20 +00:00

45 lines
1.6 KiB
C++

//===- X86.td - Target definition file for the Intel X86 arch ---*- C++ -*-===//
//
// This is a target description file for the Intel i386 architecture, refered to
// here as the "X86" architecture.
//
//===----------------------------------------------------------------------===//
// Get the target-independent interfaces which we are implementing...
//
include "../Target.td"
//===----------------------------------------------------------------------===//
// Register File Description
//===----------------------------------------------------------------------===//
include "X86RegisterInfo.td"
//===----------------------------------------------------------------------===//
// Instruction Descriptions
//===----------------------------------------------------------------------===//
include "X86InstrInfo.td"
def X86InstrInfo : InstrInfo {
let PHIInst = PHI;
// Define how we want to layout our TargetSpecific information field... This
// should be kept up-to-date with the fields in the X86InstrInfo.h file.
let TSFlagsFields = ["FormBits" , "hasOpSizePrefix" , "Prefix", "TypeBits",
"FPFormBits", "printImplicitUses", "Opcode"];
let TSFlagsShifts = [ 0, 5, 6, 10,
13, 16, 17];
}
def X86 : Target {
// Specify the callee saved registers.
let CalleeSavedRegisters = [ESI, EDI, EBX, EBP];
// Yes, pointers are 32-bits in size.
let PointerType = i32;
// Information about the instructions...
let InstructionSet = X86InstrInfo;
}