/* $OpenBSD: asm.h,v 1.7 2004/10/20 12:49:15 pefo Exp $ */ /* * Copyright (c) 2001-2002 Opsycon AB (www.opsycon.se / www.opsycon.com) * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #ifndef _MIPS64_ASM_H #define _MIPS64_ASM_H #include #ifdef NEED_OLD_RM7KFIX #define ITLBNOPFIX nop;nop;nop;nop;nop;nop;nop;nop;nop;nop; #else #define ITLBNOPFIX nop;nop;nop;nop #endif #define _MIPS_ISA_MIPS1 1 /* R2000/R3000 */ #define _MIPS_ISA_MIPS2 2 /* R4000/R6000 */ #define _MIPS_ISA_MIPS3 3 /* R4000 */ #define _MIPS_ISA_MIPS4 4 /* TFP (R1x000) */ #if !defined(ABICALLS) && !defined(_NO_ABICALLS) #define ABICALLS .abicalls #endif #if defined(ABICALLS) && !defined(_KERNEL) ABICALLS #endif #define _C_LABEL(x) x /* XXX Obsolete but keep for a while */ #if !defined(__MIPSEL__) && !defined(__MIPSEB__) #error "__MIPSEL__ or __MIPSEB__ must be defined" #endif /* * Define how to access unaligned data word */ #if defined(__MIPSEL__) #define LWLO lwl #define LWHI lwr #define SWLO swl #define SWHI swr #define LDLO ldl #define LDHI ldr #define SDLO sdl #define SDHI sdr #endif #if defined(__MIPSEB__) #define LWLO lwr #define LWHI lwl #define SWLO swr #define SWHI swl #define LDLO ldr #define LDHI ldl #define SDLO sdr #define SDHI sdl #endif /* * Define programming environment for ABI. */ #if defined(ABICALLS) && !defined(_KERNEL) && !defined(_STANDALONE) #ifndef _MIPS_SIM #define _MIPS_SIM 1 #define _ABIO32 1 #endif #ifndef _MIPS_ISA #define _MIPS_ISA 2 #define _MIPS_ISA_MIPS2 2 #endif #if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32) #define NARGSAVE 4 #define SETUP_GP \ .set noreorder; \ .cpload t9; \ .set reorder; #define SAVE_GP(x) \ .cprestore x #define SETUP_GP64(gpoff, name) #define RESTORE_GP64 #endif #if (_MIPS_SIM == _ABI64) || (_MIPS_SIM == _ABIN32) #define NARGSAVE 0 #define SETUP_GP #define SAVE_GP(x) #define SETUP_GP64(gpoff, name) \ .cpsetup t9, gpoff, name #define RESTORE_GP64 \ .cpreturn #endif #define MKFSIZ(narg,locals) (((narg+locals)*REGSZ+31)&(~31)) #else /* defined(ABICALLS) && !defined(_KERNEL) */ #define NARGSAVE 4 #define SETUP_GP #define SAVE_GP(x) #define ALIGNSZ 16 /* Stack layout alignment */ #define FRAMESZ(sz) (((sz) + (ALIGNSZ-1)) & ~(ALIGNSZ-1)) #endif /* * Basic register operations based on selected ISA */ #if (_MIPS_ISA == _MIPS_ISA_MIPS1 || _MIPS_ISA == _MIPS_ISA_MIPS2) #define REGSZ 4 /* 32 bit mode register size */ #define LOGREGSZ 2 /* log rsize */ #define REG_S sw #define REG_L lw #define CF_SZ 24 /* Call frame size */ #define CF_ARGSZ 16 /* Call frame arg size */ #define CF_RA_OFFS 20 /* Call ra save offset */ #endif #if (_MIPS_ISA == _MIPS_ISA_MIPS3 || _MIPS_ISA == _MIPS_ISA_MIPS4) #define REGSZ 8 /* 64 bit mode register size */ #define LOGREGSZ 3 /* log rsize */ #define REG_S sd #define REG_L ld #define CF_SZ 48 /* Call frame size (multiple of ALIGNSZ) */ #define CF_ARGSZ 32 /* Call frame arg size */ #define CF_RA_OFFS 40 /* Call ra save offset */ #endif #ifndef __LP64__ #define PTR_L lw #define PTR_S sw #define PTR_SUB sub #define PTR_ADD add #define PTR_SUBU subu #define PTR_ADDU addu #define LI li #define LA la #define PTR_SLL sll #define PTR_SRL srl #define PTR_VAL .word #else #define PTR_L ld #define PTR_S sd #define PTR_ADD dadd #define PTR_SUB dsub #define PTR_SUBU dsubu #define PTR_ADDU daddu #define LI dli #define LA dla #define PTR_SLL dsll #define PTR_SRL dsrl #define PTR_VAL .dword #endif /* * Define -pg profile entry code. */ #if defined(XGPROF) || defined(XPROF) #define MCOUNT \ PTR_SUBU sp, sp, 32; \ SAVE_GP(16); \ sw ra, 28(sp); \ sw gp, 24(sp); \ .set noat; \ .set noreorder; \ move AT, ra; \ jal _mcount; \ PTR_SUBU sp, sp, 8; \ lw ra, 28(sp); \ PTR_ADDU sp, sp, 32; \ .set reorder; \ .set at; #else #define MCOUNT #endif /* * LEAF(x, fsize) * * Declare a leaf routine. */ #define LEAF(x, fsize) \ .align 3; \ .globl x; \ .ent x, 0; \ x: ; \ .frame sp, fsize, ra; \ SETUP_GP \ MCOUNT #define ALEAF(x) \ .globl x; \ x: /* * NLEAF(x) * * Declare a non-profiled leaf routine. */ #define NLEAF(x, fsize) \ .align 3; \ .globl x; \ .ent x, 0; \ x: ; \ .frame sp, fsize, ra; \ SETUP_GP /* * NON_LEAF(x) * * Declare a non-leaf routine (a routine that makes other C calls). */ #define NON_LEAF(x, fsize, retpc) \ .align 3; \ .globl x; \ .ent x, 0; \ x: ; \ .frame sp, fsize, retpc; \ SETUP_GP \ MCOUNT /* * NNON_LEAF(x) * * Declare a non-profiled non-leaf routine * (a routine that makes other C calls). */ #define NNON_LEAF(x, fsize, retpc) \ .align 3; \ .globl x; \ .ent x, 0; \ x: ; \ .frame sp, fsize, retpc \ SETUP_GP /* * END(x) * * Mark end of a procedure. */ #define END(x) \ .end x /* * Macros to panic and printf from assembly language. */ #define PANIC(msg) \ LA a0, 9f; \ jal panic; \ nop ; \ MSG(msg) #define PRINTF(msg) \ la a0, 9f; \ jal printf; \ nop ; \ MSG(msg) #define MSG(msg) \ .rdata; \ 9: .asciiz msg; \ .text #define ASMSTR(str) \ .asciiz str; \ .align 3 #endif /* !_MIPS_ASM_H */