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41 lines
1.6 KiB
Modula-2
41 lines
1.6 KiB
Modula-2
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//===-- X86InstructionInfo.def - X86 Instruction Information ----*- C++ -*-===//
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//
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// This file describes all of the instructions that the X86 backend uses. It
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// relys on an external 'I' macro being defined that takes the arguments
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// specified below, and is used to make all of the information relevant to an
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// instruction be in one place.
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//
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//===----------------------------------------------------------------------===//
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// NOTE: No include guards desired
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#ifndef I
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#errror "Must define I macro before including X86/X86InstructionInfo.def!"
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#endif
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// Arguments to be passed into the I macro
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// #1: Enum name - This ends up being the opcode symbol in the X86 namespace
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// #2: Opcode name, as used by the gnu assembler
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// #3: Instruction Flags - This should be a field or'd together that contains
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// constants from the MInstructionInfo.h file.
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// #4: Target Specific Flags - Another bitfield containing X86 specific flags
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// that we are interested in for each instruction
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//
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// The first instruction must always be the PHI instruction:
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I(PHI , "phi", 0, 0)
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// The second instruction must always be the noop instruction
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I(NOOP , "nop", 0, 0) // nop 90
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// Miscellaneous instructions
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I(RET , "ret", MIF::RET, 0) // ret CB
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I(ADDrr8 , "add", 0, 0) // R8 += R8 00/r
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I(ADDrr16 , "add", 0, 0) // R16 += R16 01/r
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I(ADDrr32 , "addl", 0, 0) // R32 += R32 02/r
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// At this point, I is dead to undefine the macro
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#undef I
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