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oot/include/ultra64/asm.h
Tharo 7334ffa373
Improve the state of handwritten assembly files (#865)
* Format all handwritten asm and document some

* Use c preprocessor for constants

* Fix

* Fix PI_STATUS_ERROR, some label improvements

* Avoid hi/lo for constants

* Some more comments

* Properly mark functions as functions and their sizes

* Fix merge

* Improvements

* Review suggestions, rework procedure start/end macros to be more like libreultra

* Move IPL3 symbol definitions into ipl3.s

* Fix undefined_syms, add include and language guards to asm.h and fix the comment in gbi.h

* Consistent hex capitalization, add some MIPS builtin defines to CC_CHECK to behave properly

* Add -no-pad-sections assembler option and clean up alignment in gu files and bzero

* Further suggestions and improvements

* Matrix conversion function clarifications

* Fix passing AVOID_UB to gcc

* Suggestions

* Suggestions, global interrupt mask improvements

* Further suggestions, interrupt mask comments

* Comments fixes, rdb.h

* Switch from # comments to // comments, remove unnecesary .set gp=64 directives

* Further review suggestions

* Missed one
2022-05-01 01:03:22 +02:00

85 lines
1.8 KiB
C

#ifndef ASM_H
#define ASM_H
#ifdef __sgi
#define _MIPS_ISA_MIPS1 1
#define _MIPS_ISA_MIPS2 2
#define _MIPS_ISA_MIPS3 3
#define _MIPS_ISA_MIPS4 4
#endif
#ifndef _LANGUAGE_C
#define LEAF(x) \
.balign 4 ;\
.globl x ;\
.type x, @function ;\
x: ;\
.ent x, 0 ;\
.frame $sp, 0, $ra
#define XLEAF(x) \
.balign 4 ;\
.globl x ;\
.type x, @function ;\
x: ;\
.aent x, 0
#define NESTED(x, fsize, ra) \
.globl x ;\
x: ;\
.ent x, 0 ;\
.frame $sp, fsize, ra
#define XNESTED(x) \
.globl x ;\
x: ;\
.aent x, 0
#define END(x) \
.size x, . - x ;\
.end x
#define IMPORT(x, size) \
.extern x, size
#define EXPORT(x) \
.globl x ;\
x:
#define DATA(x) \
.balign 4 ;\
.globl x ;\
.type x, @object ;\
x:
#define ENDDATA(x) \
.size x, . - x
#endif
/**
* Stack Alignment
*/
#if (_MIPS_SIM == _ABIO32)
#define NARGSAVE 4 // space for 4 args must be allocated
#define ALSZ (8-1)
#define ALMASK ~(8-1)
#elif (_MIPS_SIM == _ABIN32 || _MIPS_SIM == _ABI64)
#define NARGSAVE 0 // no caller responsibilities
#define ALSZ (16-1)
#define ALMASK ~(16-1)
#endif
#define FRAMESZ(size) (((size) + ALSZ) & ALMASK)
/**
* Register Size
*/
#if (_MIPS_ISA == _MIPS_ISA_MIPS1 || _MIPS_ISA == _MIPS_ISA_MIPS2)
#define SZREG 4
#elif (_MIPS_ISA == _MIPS_ISA_MIPS3 || _MIPS_ISA == _MIPS_ISA_MIPS4)
#define SZREG 8
#endif
#endif