haraldwolff/qemu-patch-raspberry4
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

fxsr fixes

Browse source 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1219 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-01-12 22:41:17 +00:00
parent 735a8fd38e
commit d3c617219b
1 changed files with 5 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
target-i386/helper.c
View file

@ -2915,11 +2915,11 @@ void helper_fxsave(target_ulong ptr, int data64)
fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
fptag = 0;
for(i = 0; i < 8; i++) {
fptag |= ((!env->fptags[(env->fpstt + i) & 7]) << i);
fptag |= (env->fptags[i] << i);
}
stw(ptr, env->fpuc);
stw(ptr + 2, fpus);
stw(ptr + 4, fptag);
stw(ptr + 4, fptag ^ 0xff);
addr = ptr + 0x20;
for(i = 0;i < 8; i++) {
@ -2931,7 +2931,7 @@ void helper_fxsave(target_ulong ptr, int data64)
if (env->cr[4] & CR4_OSFXSR_MASK) {
/* XXX: finish it */
stl(ptr + 0x18, env->mxcsr); /* mxcsr */
stl(ptr + 0x1c, 0); /* mxcsr_mask */
stl(ptr + 0x1c, 0x0000ffff); /* mxcsr_mask */
nb_xmm_regs = 8 << data64;
addr = ptr + 0xa0;
for(i = 0; i < nb_xmm_regs; i++) {
@ -2950,12 +2950,12 @@ void helper_fxrstor(target_ulong ptr, int data64)
env->fpuc = lduw(ptr);
fpus = lduw(ptr + 2);
fptag = ldub(ptr + 4);
fptag = lduw(ptr + 4);
env->fpstt = (fpus >> 11) & 7;
env->fpus = fpus & ~0x3800;
fptag ^= 0xff;
for(i = 0;i < 8; i++) {
env->fptags[(env->fpstt + i) & 7] = ((fptag >> i) & 1);
env->fptags[i] = ((fptag >> i) & 1);
}
addr = ptr + 0x20;