yuzu/unicorn
1
0
Fork 0
mirror of https://github.com/yuzu-emu/unicorn.git synced 2025-01-11 14:55:28 +00:00
Code Issues Packages Projects Releases Wiki Activity

target-sparc: fix Trap Based Address Register behavior for sparc64

Browse source 
Accoding the chapter 7.6 Trap Processing of the SPARC Architecture Manual v9,
the Trap Based Address Register is not modified as a trap is taken.

This fix allows booting FreeBSD-10.3-RELEASE-sparc64.

Backports commit de5f1077446ca455342db149737bdc395a7b9882 from qemu
This commit is contained in:
Artyom Tarasenko 2018-02-23 13:39:57 -05:00 committed by Lioncash
parent 34472bd6fd
commit af0e282ab1
No known key found for this signature in database
GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 2 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
qemu/target-sparc/int64_helper.c
View file

@ -80,9 +80,8 @@ void sparc_cpu_do_interrupt(CPUState *cs)
} else if ((intno & 0x1c0) == TT_FILL) {
cpu_set_cwp(env, cpu_cwp_inc(env, env->cwp + 1));
}
env->tbr &= ~0x7fffULL;
env->tbr |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5);
env->pc = env->tbr;
env->pc = env->tbr & ~0x7fffULL;
env->pc |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5);
env->npc = env->pc + 4;
cs->exception_index = -1;
}