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| author |   aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-03-10 21:43:25 +0000 |
|---|---|---|
| committer | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-03-10 21:43:25 +0000 |
| commit | 419bafa517f777d56f851efce55a9d2328a657bc (patch) | |
| tree | 613fad6ed5763c2cc46024a9acfaef8174e46a00 /tcg/arm | |
| parent | tcg: update TODO (diff) | |
| download | qemu-kvm-419bafa517f777d56f851efce55a9d2328a657bc.tar.gz qemu-kvm-419bafa517f777d56f851efce55a9d2328a657bc.tar.bz2 qemu-kvm-419bafa517f777d56f851efce55a9d2328a657bc.zip | |
tcg-arm: fix qemu_ld64
Emulating fldl on arm doesn't seem to work too well. It's the way
qemu_ld64 is translated to arm instructions.
tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, 0);
tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, 4);
Consider case where data_reg==0, data_reg2==1, and addr_reg==0. First load
overwrited addr_reg. So let's put an if (data_ref==addr_reg).
(Pablo Virolainen)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6808 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'tcg/arm')
| -rw-r--r-- | tcg/arm/tcg-target.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c index 8e99dd093..8139da10c 100644 --- a/tcg/arm/tcg-target.c +++ b/tcg/arm/tcg-target.c @@ -1011,8 +1011,13 @@ static inline void tcg_out_qemu_ld(TCGContext *s, int cond, case 3: /* TODO: use block load - * check that data_reg2 > data_reg or the other way */ - tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, 0); - tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, 4); + if (data_reg == addr_reg) { + tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, 4); + tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, 0); + } else { + tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, 0); + tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, 4); + } break; } #endif |