Zephyr API Documentation
4.0.0-rc2
A Scalable Open Source RTOS
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assembler.h
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/* SPDX-License-Identifier: Apache-2.0 */
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/*
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* Copyright (C) 2021 Synopsys, Inc. (www.synopsys.com)
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*
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* Author: Vineet Gupta <vgupta@synopsys.com>
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*
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* Top level include file providing ISA pseudo-mnemonics for use in assembler
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* and inline assembly.
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*
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* - Helps code reuse across ARC64/ARC32/ARCv2
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* e.g. "LDR" maps to 'LD' on 32-bit ISA, 'LDL' on 64-bit ARCv2/ARC64
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*
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* - Provides emulation with multiple instructions if the case be
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* e.g. "DBNZ" implemented using 'SUB' and 'BRNE'
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*
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* - Looks more complex than it really is: mainly because Kconfig defines
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* are not "honored" in inline assembly. So each variant is unconditional
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* code in a standalone file with Kconfig based #ifdef'ry here. During the
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* build process, the "C" preprocessor runs through this file, leaving
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* just the final variant include in code fed to compiler/assembler.
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*/
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#ifndef __ASM_ARC_ASM_H
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#define __ASM_ARC_ASM_H 1
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#ifdef _ASMLANGUAGE
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#if defined(CONFIG_ISA_ARCV3) && defined(CONFIG_64BIT)
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#define ARC_PTR .xword
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#define ARC_REGSZ 8
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#define ARC_REGSHIFT 3
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#if defined(__CCAC__)
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#include "
asm-macro-64-bit-mwdt.h
"
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#else
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#include "
asm-macro-64-bit-gnu.h
"
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#endif
/* defined(__CCAC__) */
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#elif defined(CONFIG_ISA_ARCV3) && !defined(CONFIG_64BIT)
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#define ARC_PTR .word
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#define ARC_REGSZ 4
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#define ARC_REGSHIFT 2
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#if defined(__CCAC__)
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#include "
asm-macro-32-bit-mwdt.h
"
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#else
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#include "
asm-macro-32-bit-gnu.h
"
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#endif
/* defined(__CCAC__) */
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#else
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#define ARC_PTR .word
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#define ARC_REGSZ 4
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#define ARC_REGSHIFT 2
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#if defined(__CCAC__)
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#include "
asm-macro-32-bit-mwdt.h
"
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#else
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#include "
asm-macro-32-bit-gnu.h
"
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#endif
/* defined(__CCAC__) */
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#endif
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#else
/* !_ASMLANGUAGE */
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#error "asm-compat macroses used not in assembler code!"
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#endif
/* _ASMLANGUAGE */
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#endif
asm-macro-32-bit-gnu.h
asm-macro-32-bit-mwdt.h
asm-macro-64-bit-gnu.h
asm-macro-64-bit-mwdt.h
zephyr
arch
arc
asm-compat
assembler.h
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