/*
* Copyright © 2018 , VideoLAN and dav1d authors
* Copyright © 2023 , Nathan Egge
* All rights reserved .
*
* 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 COPYRIGHT HOLDERS AND CONTRIBUTORS " 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 COPYRIGHT OWNER OR CONTRIBUTORS 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 DAV1D_SRC_RISCV_ASM_S
#define DAV1D_SRC_RISCV_ASM_S
#include "config.h"
#if !defined(PIC)
#if defined(__PIC__)
#define PIC __PIC__
#elif defined(__pic__)
#define PIC __pic__
#endif
#endif
#ifndef PRIVATE_PREFIX
#define PRIVATE_PREFIX dav1d_
#endif
#define PASTE(a,b) a ## b
#define CONCAT(a,b) PASTE(a,b)
#ifdef PREFIX
#define EXTERN CONCAT(_,PRIVATE_PREFIX)
#else
#define EXTERN PRIVATE_PREFIX
#endif
.macro arch ext:req, more:vararg
.option arch, +\ext
.ifnb \more
arch \more
.endif
.endm
.macro function name, export=0 , ext=
.macro endfunc
#ifdef __ELF__
.size \name, . - \name
#endif
.option pop
.purgem endfunc
.endm
.text
.option push
.ifnb \ext
arch \ext
.endif
.if \export
.global EXTERN\name
#ifdef __ELF__
.type EXTERN\name, %function
.hidden EXTERN\name
#elif defined(__MACH__)
.private_extern EXTERN\name
#endif
EXTERN\name:
.else
#ifdef __ELF__
.type \name, %function
#endif
.endif
\name:
.endm
.macro const name, export=0 , align =2
.macro endconst
#ifdef __ELF__
.size \name, . - \name
#endif
.purgem endconst
.endm
#if defined(_WIN32)
.section .rdata
#elif !defined(__MACH__)
.section .rodata
#else
.const_data
#endif
.align \align
.if \export
.global EXTERN\name
#ifdef __ELF__
.hidden EXTERN\name
#elif defined(__MACH__)
.private_extern EXTERN\name
#endif
EXTERN\name:
.endif
\name:
.endm
.macro thread_local name, align =3 , quads=1
.macro end_thread_local
.size \name, . - \name
.purgem end_thread_local
.endm
.section .tbss, "waT"
.align \align
.hidden \name
\name:
.rept \quads
.quad 0
.endr
end_thread_local
.endm
#define L(x) .L ## x
#define MA (1 << 7 )
#define TA (1 << 6 )
#define E8 (0 << 3 )
#define E16 (1 << 3 )
#define E32 (2 << 3 )
#define E64 (3 << 3 )
#define M1 0
#define M2 1
#define M4 2
#define M8 3
#define MF2 7
#define MF4 6
#define MF8 5
#endif /* DAV1D_SRC_RISCV_ASM_S */
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