motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-07 09:43:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

tcp/mips: Change TCG_AREG0 (fp -> s0)

Browse source 
Register fp (frame pointer) is a bad choice for compilations
without optimisation, because the compiler makes heavy use
of this register (so the resulting code crashes).

Register s0 had been used for TCG_AREG1 in earlier releases,
but was no longer used and is now free for TCG_AREG0.

The resulting code works for compilations without
optimisation (tested with qemu mips in qemu mips
on x86 host).

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Stefan Weil 2010-04-09 17:28:40 +02:00 • committed by Aurelien Jarno
parent f038e8f79b
commit 60bf84cf4c
3 changed files with 5 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

2
tcg/mips/tcg-target.h
View file

@ -97,7 +97,7 @@ enum {
#undef TCG_TARGET_HAS_ext16u_i32 /* andi rt, rs, 0xffff */
/* Note: must be synced with dyngen-exec.h */
#define TCG_AREG0 TCG_REG_FP
#define TCG_AREG0 TCG_REG_S0
/* guest base is supported */
#define TCG_TARGET_HAS_GUEST_BASE