UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

MIPS: Make definitions of MIPSInst_FMA_{FUNC,FMTM} consistent with MIPS64 manual 

The kernel definitions of MIPSInst_FMA_FUNC and MIPSInst_FMA_FFMT are not
consistent with MADD.fmt, NMADD.fmt and NMSUB.fmt in the MIPS64 manual [1],
the field func is bit 5..3 and fmt is bit 2..0, fix them. Otherwise there
exists error when add new instruction simulation.

[1] https://www.mips.com/?do-download=the-mips64-instruction-set-v6-06

Reported-by: Ming Wang <wangming01@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Tiezhu Yang 2021-01-22 15:53:18 +08:00 committed by Thomas Bogendoerfer
parent baec970aa5
commit 919af8b96c
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/mips/include/asm/inst.h
View File

@ -65,11 +65,11 @@
#define I_FR_SFT 21
#define MIPSInst_FR(x) ((MIPSInst(x) & 0x03e00000) >> I_FR_SFT)
#define I_FMA_FUNC_SFT 2
#define MIPSInst_FMA_FUNC(x) ((MIPSInst(x) & 0x0000003c) >> I_FMA_FUNC_SFT)
#define I_FMA_FUNC_SFT 3
#define MIPSInst_FMA_FUNC(x) ((MIPSInst(x) & 0x00000038) >> I_FMA_FUNC_SFT)
#define I_FMA_FFMT_SFT 0
#define MIPSInst_FMA_FFMT(x) (MIPSInst(x) & 0x00000003)
#define MIPSInst_FMA_FFMT(x) (MIPSInst(x) & 0x00000007)
typedef unsigned int mips_instruction;