motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-11 03:24:58 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

host-utils: Implemented unsigned 256-by-128 division

Browse source 
Based on already existing QEMU implementation, created an unsigned 256
bit by 128 bit division needed to implement the vector divide extended
unsigned instruction from PowerISA3.1

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220525134954.85056-5-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Lucas Mateus Castro (alqotel) 2022-05-25 10:49:50 -03:00 • committed by Daniel Henrique Barboza
parent 9a1f0866a3
commit 4724bbd284
3 changed files with 169 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

2
include/qemu/host-utils.h
View file

@ -32,6 +32,7 @@
#include "qemu/compiler.h"
#include "qemu/bswap.h"
#include "qemu/int128.h"
#ifdef CONFIG_INT128
static inline void mulu64(uint64_t *plow, uint64_t *phigh,
@ -849,4 +850,5 @@ static inline uint64_t udiv_qrnnd(uint64_t *r, uint64_t n1,
#endif
}
Int128 divu256(Int128 *plow, Int128 *phigh, Int128 divisor);
#endif