vfp: Handle accesses to FPINST/FPINST2 system registers

Also has a side-benefit of correcting access to the FPEXC register.

1 files changed, 4 insertions, 12 deletions

diff --git a/src/core/arm/skyeye_common/vfp/vfp.cpp b/src/core/arm/skyeye_common/vfp/vfp.cpp
index 571d6c2f..f40cf595 100644
--- a/src/core/arm/skyeye_common/vfp/vfp.cpp
+++ b/src/core/arm/skyeye_common/vfp/vfp.cpp
@@ -33,6 +33,10 @@ unsigned VFPInit(ARMul_State* state)
     state->VFP[VFP_FPEXC] = 0;
     state->VFP[VFP_FPSCR] = 0;
 
+    // ARM11 MPCore instruction register reset values.
+    state->VFP[VFP_FPINST]  = 0xEE000A00;
+    state->VFP[VFP_FPINST2] = 0;
+
     // ARM11 MPCore feature register values.
     state->VFP[VFP_MVFR0] = 0x11111111;
     state->VFP[VFP_MVFR1] = 0;
@@ -40,18 +44,6 @@ unsigned VFPInit(ARMul_State* state)
     return 0;
 }
 
-void VMSR(ARMul_State* state, ARMword reg, ARMword Rt)
-{
-    if (reg == 1)
-    {
-        state->VFP[VFP_FPSCR] = state->Reg[Rt];
-    }
-    else if (reg == 8)
-    {
-        state->VFP[VFP_FPEXC] = state->Reg[Rt];
-    }
-}
-
 void VMOVBRS(ARMul_State* state, ARMword to_arm, ARMword t, ARMword n, ARMword* value)
 {
     if (to_arm)