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Every function has the address of its frame in the beginning of code section. The frame address is retrieved and used to pass arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68597 91177308-0d34-0410-b5e6-96231b3b80d8
34 lines
1.1 KiB
TableGen
34 lines
1.1 KiB
TableGen
//===- PIC16RegisterInfo.td - PIC16 Register defs ------------*- tblgen -*-===//
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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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// Declarations that describe the PIC16 register file
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//===----------------------------------------------------------------------===//
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class PIC16Reg<string n> : Register<n> {
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let Namespace = "PIC16";
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}
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// PIC16 Registers.
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def W : PIC16Reg<"W">;
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def FSR0 : PIC16Reg<"FSR0">;
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def FSR1 : PIC16Reg<"FSR1">;
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def BS : PIC16Reg<"BS">;
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def PCLATH : PIC16Reg<"PCLATH">;
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def STATUS : PIC16Reg<"STATUS">;
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// PIC16 Register classes.
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def GPR : RegisterClass<"PIC16", [i8], 8, [W]>;
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def FSR16 : RegisterClass<"PIC16", [i16], 8, [FSR0, FSR1]>;
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def BSR : RegisterClass<"PIC16", [i8], 8, [BS]>;
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def PCLATHR : RegisterClass<"PIC16", [i8], 8, [PCLATH]>;
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def STATUSR : RegisterClass<"PIC16", [i8], 8, [STATUS]>;
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