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-rw-r--r--src/emu/x64run0f.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/src/emu/x64run0f.c b/src/emu/x64run0f.c
index 83b60043..d0b5900f 100644
--- a/src/emu/x64run0f.c
+++ b/src/emu/x64run0f.c
@@ -101,13 +101,19 @@ uintptr_t Run0F(x64emu_t *emu, rex_t rex, uintptr_t addr, int *step)
                 switch((nextop>>3)&7) {

                     case 0:                 /* SGDT Ed */

                         ED->word[0] = 0x7f;    // dummy return...

-                        ED->word[1] = 0x000c;

-                        ED->word[2] = 0xd000;

+                        if(rex.is32bits) {

+                            *(uint32_t*)(&ED->word[1]) = 0x3000;

+                        } else {

+                            *(uint64_t*)(&ED->word[1]) = 0xfffffe0000077000LL;

+                        }

                         break;

                     case 1:                 /* SIDT Ed */

                         ED->word[0] = 0xfff;    // dummy return, like "disabled"

-                        ED->word[1] = 0;

-                        ED->word[2] = 0;

+                        if(rex.is32bits) {

+                            *(uint32_t*)(&ED->word[1]) = 0x0000;

+                        } else {

+                            *(uint64_t*)(&ED->word[1]) = 0xfffffe0000000000LL;

+                        }

                         break;

                     case 4:                 /* SMSW Ew */

                         // dummy for now... Do I need to track CR0 state?