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vfp: Handle accesses to the VFP media feature registers
These are able to be accessed in any privilege mode.
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@ -59,6 +59,8 @@ enum {
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VFP_FPSID,
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VFP_FPSID,
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VFP_FPSCR,
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VFP_FPSCR,
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VFP_FPEXC,
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VFP_FPEXC,
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VFP_MVFR0,
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VFP_MVFR1,
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// Not an actual register.
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// Not an actual register.
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// All VFP system registers should be defined above this.
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// All VFP system registers should be defined above this.
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@ -33,6 +33,10 @@ unsigned VFPInit(ARMul_State* state)
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state->VFP[VFP_FPEXC] = 0;
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state->VFP[VFP_FPEXC] = 0;
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state->VFP[VFP_FPSCR] = 0;
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state->VFP[VFP_FPSCR] = 0;
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// ARM11 MPCore feature register values.
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state->VFP[VFP_MVFR0] = 0x11111111;
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state->VFP[VFP_MVFR1] = 0;
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return 0;
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return 0;
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}
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}
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@ -1141,12 +1141,10 @@ VMRS_INST:
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cpu->Reg[inst_cream->Rt] = cpu->VFP[VFP_FPSID];
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cpu->Reg[inst_cream->Rt] = cpu->VFP[VFP_FPSID];
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break;
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break;
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case 6:
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case 6:
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/* MVFR1, VFPv3 only ? */
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cpu->Reg[inst_cream->Rt] = cpu->VFP[VFP_MVFR1];
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LOG_TRACE(Core_ARM11, "\tr%d <= MVFR1 unimplemented\n", inst_cream->Rt);
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break;
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break;
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case 7:
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case 7:
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/* MVFR0, VFPv3 only? */
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cpu->Reg[inst_cream->Rt] = cpu->VFP[VFP_MVFR0];
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LOG_TRACE(Core_ARM11, "\tr%d <= MVFR0 unimplemented\n", inst_cream->Rt);
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break;
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break;
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case 8:
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case 8:
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cpu->Reg[inst_cream->Rt] = cpu->VFP[VFP_FPEXC];
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cpu->Reg[inst_cream->Rt] = cpu->VFP[VFP_FPEXC];
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