rt-thread/libcpu/risc-v/virt64/vector_encoding.h

44 lines
1.3 KiB
C

/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-10-10 RT-Thread the first version,
* compatible to riscv-v-spec-1.0
*/
#ifndef __VECTOR_ENCODING_H__
#define __VECTOR_ENCODING_H__
/**
* assembler names used for vset{i}vli vtypei immediate
*/
#define VEC_IMM_SEW_8 e8
#define VEC_IMM_SEW_16 e16
#define VEC_IMM_SEW_32 e32
#define VEC_IMM_SEW_64 e64
/* group setting, encoding by multiplier */
#define VEC_IMM_LMUL_F8 mf8
#define VEC_IMM_LMUL_F4 mf4
#define VEC_IMM_LMUL_F2 mf2
#define VEC_IMM_LMUL_1 m1
#define VEC_IMM_LMUL_2 m2
#define VEC_IMM_LMUL_4 m4
#define VEC_IMM_LMUL_8 m8
/* TAIL & MASK agnostic bits */
#define VEC_IMM_TAIL_AGNOSTIC ta
#define VEC_IMM_MASK_AGNOSTIC ma
#define VEC_IMM_TAMA VEC_IMM_TAIL_AGNOSTIC, VEC_IMM_MASK_AGNOSTIC
#define VEC_IMM_TAMU VEC_IMM_TAIL_AGNOSTIC
#define VEC_IMM_TUMA VEC_IMM_MASK_AGNOSTIC
/**
* configuration setting instruction
*/
#define VEC_CONFIG_SETVLI(xVl, xAvl, vtype...) vsetvli xVl, xAvl, ##vtype
#define VEC_CONFIG_SET_VL_VTYPE(xVl, xVtype) vsetvl x0, xVl, xVtype
#endif /* __VECTOR_ENCODING_H__ */