PS2SDK
PS2 Homebrew Libraries
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as_reg_compat.h
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1/*
2# _____ ___ ____ ___ ____
3# ____| | ____| | | |____|
4# | ___| |____ ___| ____| | \ PS2DEV Open Source Project.
5#-----------------------------------------------------------------------
6# Copyright 2001-2004, ps2dev - http://www.ps2dev.org
7# Licenced under Academic Free License version 2.0
8# Review ps2sdk README & LICENSE files for further details.
9*/
10
16#ifndef __AS_REG_COMPAT_H__
17#define __AS_REG_COMPAT_H__
18
19#ifdef _IOP
20#define ABI_EABI64
21#endif
22
23#if !defined(ABI_EABI64) && !defined(ABI_N32)
24// No ABI defined
25#error "Must define ABI_EABI64 or ABI_N32"
26#endif
27
28#if defined(ABI_EABI64) && defined(ABI_N32)
29// Both ABI's defined
30#error "Must define ABI_EABI64 or ABI_N32"
31#endif
32
33#define zero 0 // Hardware zero
34#define at 1 // Assembler temporary Caller-saved
35#define v0 2 // Function results Caller-saved
36#define v1 3 // Function results Caller-saved
37#define a0 4 // Subprogram arguments Caller-saved
38#define a1 5 // Subprogram arguments Caller-saved
39#define a2 6 // Subprogram arguments Caller-saved
40#define a3 7 // Subprogram arguments Caller-saved
41
42#ifdef ABI_EABI64
43#define a4 INVALID_REG
44#define a5 INVALID_REG
45#define a6 INVALID_REG
46#define a7 INVALID_REG
47#define t0 8 // Temporaries Caller-saved <- watch out!
48#define t1 9 // Temporaries Caller-saved <- watch out!
49#define t2 10 // Temporaries Caller-saved <- watch out!
50#define t3 11 // Temporaries Caller-saved <- watch out!
51#define t4 12 // Temporaries Caller-saved
52#define t5 13 // Temporaries Caller-saved
53#define t6 14 // Temporaries Caller-saved
54#define t7 15 // Temporaries Caller-saved
55#endif
56
57#ifdef ABI_N32
58#define a4 8 // Subprogram arguments Caller-saved
59#define a5 9 // Subprogram arguments Caller-saved
60#define a6 10 // Subprogram arguments Caller-saved
61#define a7 11 // Subprogram arguments Caller-saved
62#define t0 12 // Temporaries Caller-saved <- watch out!
63#define t1 13 // Temporaries Caller-saved <- watch out!
64#define t2 14 // Temporaries Caller-saved <- watch out!
65#define t3 15 // Temporaries Caller-saved <- watch out!
66#define t4 INVALID_REG
67#define t5 INVALID_REG
68#define t6 INVALID_REG
69#define t7 INVALID_REG
70#endif
71
72#define s0 16 // Saved Callee-saved
73#define s1 17 // Saved Callee-saved
74#define s2 18 // Saved Callee-saved
75#define s3 19 // Saved Callee-saved
76#define s4 20 // Saved Callee-saved
77#define s5 21 // Saved Callee-saved
78#define s6 22 // Saved Callee-saved
79#define s7 23 // Saved Callee-saved
80#define t8 24 // Temporary Caller-saved
81#define t9 25 // Temporary Caller-saved
82#define k0 26 // Reserved for kernel
83#define k1 27 // Reserved for kernel
84#define gp 28 // Global pointer Callee-saved
85#define sp 29 // Stack pointer Callee-saved
86#define fp 30 // Frame pointer Callee-saved
87#define ra 31 // Return address Caller-saved
88
89#endif /* __AS_REG_COMPAT_H__ */