OpenE2K
/
qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

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

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.

Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
This commit is contained in:
Artyom Tarasenko 2016-04-14 21:14:32 +02:00 committed by Mark Cave-Ayland
parent 01a780d51a
commit de5f107744
1 changed files with 2 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
target-sparc/int64_helper.c
View File

@ -158,9 +158,8 @@ 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;
}