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-rw-r--r--src/core/arm/interpreter/armcopro.cpp254
1 files changed, 36 insertions, 218 deletions
diff --git a/src/core/arm/interpreter/armcopro.cpp b/src/core/arm/interpreter/armcopro.cpp
index b4ddc3d96..bb9ca98fe 100644
--- a/src/core/arm/interpreter/armcopro.cpp
+++ b/src/core/arm/interpreter/armcopro.cpp
@@ -19,213 +19,45 @@
#include "core/arm/skyeye_common/armemu.h"
#include "core/arm/skyeye_common/vfp/vfp.h"
-//chy 2005-07-08
-//#include "ansidecl.h"
-//chy -------
-//#include "iwmmxt.h"
+// Dummy Co-processors.
-/* Dummy Co-processors. */
-
-static unsigned
-NoCoPro3R(ARMul_State * state,
-unsigned a, ARMword b)
+static unsigned int NoCoPro3R(ARMul_State* state, unsigned int a, ARMword b)
{
return ARMul_CANT;
}
-static unsigned
-NoCoPro4R(ARMul_State * state,
-unsigned a,
-ARMword b, ARMword c)
+static unsigned int NoCoPro4R(ARMul_State* state, unsigned int a, ARMword b, ARMword c)
{
return ARMul_CANT;
}
-static unsigned
-NoCoPro4W(ARMul_State * state,
-unsigned a,
-ARMword b, ARMword * c)
+static unsigned int NoCoPro4W(ARMul_State* state, unsigned int a, ARMword b, ARMword* c)
{
return ARMul_CANT;
}
-static unsigned
-NoCoPro5R(ARMul_State * state,
-unsigned a,
-ARMword b,
-ARMword c, ARMword d)
+static unsigned int NoCoPro5R(ARMul_State* state, unsigned int a, ARMword b, ARMword c, ARMword d)
{
return ARMul_CANT;
}
-static unsigned
-NoCoPro5W(ARMul_State * state,
-unsigned a,
-ARMword b,
-ARMword * c, ARMword * d)
+static unsigned int NoCoPro5W(ARMul_State* state, unsigned int a, ARMword b, ARMword* c, ARMword* d)
{
return ARMul_CANT;
}
-/* The XScale Co-processors. */
-
-/* Coprocessor 15: System Control. */
-static void write_cp14_reg(unsigned, ARMword);
-static ARMword read_cp14_reg(unsigned);
-
-/* Check an access to a register. */
-
-static unsigned
-check_cp15_access(ARMul_State * state,
-unsigned reg,
-unsigned CRm, unsigned opcode_1, unsigned opcode_2)
-{
- /* Do not allow access to these register in USER mode. */
- //chy 2006-02-16 , should not consider system mode, don't conside 26bit mode
- if (state->Mode == USER26MODE || state->Mode == USER32MODE)
- return ARMul_CANT;
-
- /* Opcode_1should be zero. */
- if (opcode_1 != 0)
- return ARMul_CANT;
-
- /* Different register have different access requirements. */
- switch (reg) {
- case 0:
- case 1:
- /* CRm must be 0. Opcode_2 can be anything. */
- if (CRm != 0)
- return ARMul_CANT;
- break;
- case 2:
- case 3:
- /* CRm must be 0. Opcode_2 must be zero. */
- if ((CRm != 0) || (opcode_2 != 0))
- return ARMul_CANT;
- break;
- case 4:
- /* Access not allowed. */
- return ARMul_CANT;
- case 5:
- case 6:
- /* Opcode_2 must be zero. CRm must be 0. */
- if ((CRm != 0) || (opcode_2 != 0))
- return ARMul_CANT;
- break;
- case 7:
- /* Permissable combinations:
- Opcode_2 CRm
- 0 5
- 0 6
- 0 7
- 1 5
- 1 6
- 1 10
- 4 10
- 5 2
- 6 5 */
- switch (opcode_2) {
- default:
- return ARMul_CANT;
- case 6:
- if (CRm != 5)
- return ARMul_CANT;
- break;
- case 5:
- if (CRm != 2)
- return ARMul_CANT;
- break;
- case 4:
- if (CRm != 10)
- return ARMul_CANT;
- break;
- case 1:
- if ((CRm != 5) && (CRm != 6) && (CRm != 10))
- return ARMul_CANT;
- break;
- case 0:
- if ((CRm < 5) || (CRm > 7))
- return ARMul_CANT;
- break;
- }
- break;
-
- case 8:
- /* Permissable combinations:
- Opcode_2 CRm
- 0 5
- 0 6
- 0 7
- 1 5
- 1 6 */
- if (opcode_2 > 1)
- return ARMul_CANT;
- if ((CRm < 5) || (CRm > 7))
- return ARMul_CANT;
- if (opcode_2 == 1 && CRm == 7)
- return ARMul_CANT;
- break;
- case 9:
- /* Opcode_2 must be zero or one. CRm must be 1 or 2. */
- if (((CRm != 0) && (CRm != 1))
- || ((opcode_2 != 1) && (opcode_2 != 2)))
- return ARMul_CANT;
- break;
- case 10:
- /* Opcode_2 must be zero or one. CRm must be 4 or 8. */
- if (((CRm != 0) && (CRm != 1))
- || ((opcode_2 != 4) && (opcode_2 != 8)))
- return ARMul_CANT;
- break;
- case 11:
- /* Access not allowed. */
- return ARMul_CANT;
- case 12:
- /* Access not allowed. */
- return ARMul_CANT;
- case 13:
- /* Opcode_2 must be zero. CRm must be 0. */
- if ((CRm != 0) || (opcode_2 != 0))
- return ARMul_CANT;
- break;
- case 14:
- /* Opcode_2 must be 0. CRm must be 0, 3, 4, 8 or 9. */
- if (opcode_2 != 0)
- return ARMul_CANT;
-
- if ((CRm != 0) && (CRm != 3) && (CRm != 4) && (CRm != 8)
- && (CRm != 9))
- return ARMul_CANT;
- break;
- case 15:
- /* Opcode_2 must be zero. CRm must be 1. */
- if ((CRm != 1) || (opcode_2 != 0))
- return ARMul_CANT;
- break;
- default:
- /* Should never happen. */
- return ARMul_CANT;
- }
-
- return ARMul_DONE;
-}
-
-/* Install co-processor instruction handlers in this routine. */
-
-unsigned
-ARMul_CoProInit(ARMul_State * state)
+// Install co-processor instruction handlers in this routine.
+unsigned int ARMul_CoProInit(ARMul_State* state)
{
- unsigned int i;
-
- /* Initialise tham all first. */
- for (i = 0; i < 16; i++)
+ // Initialise tham all first.
+ for (unsigned int i = 0; i < 16; i++)
ARMul_CoProDetach(state, i);
- /* Install CoPro Instruction handlers here.
- The format is:
- ARMul_CoProAttach (state, CP Number, Init routine, Exit routine
- LDC routine, STC routine, MRC routine, MCR routine,
- CDP routine, Read Reg routine, Write Reg routine). */
+ // Install CoPro Instruction handlers here.
+ // The format is:
+ // ARMul_CoProAttach (state, CP Number, Init routine, Exit routine
+ // LDC routine, STC routine, MRC routine, MCR routine,
+ // CDP routine, Read Reg routine, Write Reg routine).
if (state->is_v6) {
ARMul_CoProAttach(state, 10, VFPInit, NULL, VFPLDC, VFPSTC,
VFPMRC, VFPMCR, VFPMRRC, VFPMCRR, VFPCDP, NULL, NULL);
@@ -235,57 +67,44 @@ ARMul_CoProInit(ARMul_State * state)
/*ARMul_CoProAttach (state, 15, MMUInit, NULL, NULL, NULL,
MMUMRC, MMUMCR, NULL, NULL, NULL, NULL, NULL);*/
}
- //chy 2003-09-03 do it in future!!!!????
-#if 0
- if (state->is_iWMMXt) {
- ARMul_CoProAttach(state, 0, NULL, NULL, IwmmxtLDC, IwmmxtSTC,
- NULL, NULL, IwmmxtCDP, NULL, NULL);
- ARMul_CoProAttach(state, 1, NULL, NULL, NULL, NULL,
- IwmmxtMRC, IwmmxtMCR, IwmmxtCDP, NULL,
- NULL);
- }
-#endif
- /* No handlers below here. */
+ // No handlers below here.
- /* Call all the initialisation routines. */
- for (i = 0; i < 16; i++)
+ // Call all the initialisation routines.
+ for (unsigned int i = 0; i < 16; i++)
if (state->CPInit[i])
(state->CPInit[i]) (state);
return TRUE;
}
-/* Install co-processor finalisation routines in this routine. */
-
-void
-ARMul_CoProExit(ARMul_State * state)
+// Install co-processor finalisation routines in this routine.
+void ARMul_CoProExit(ARMul_State * state)
{
- register unsigned i;
-
- for (i = 0; i < 16; i++)
+ for (unsigned int i = 0; i < 16; i++)
if (state->CPExit[i])
(state->CPExit[i]) (state);
- for (i = 0; i < 16; i++) /* Detach all handlers. */
+ // Detach all handlers.
+ for (unsigned int i = 0; i < 16; i++)
ARMul_CoProDetach(state, i);
}
-/* Routines to hook Co-processors into ARMulator. */
+// Routines to hook Co-processors into ARMulator.
void
-ARMul_CoProAttach(ARMul_State * state,
+ARMul_CoProAttach(ARMul_State* state,
unsigned number,
-ARMul_CPInits * init,
-ARMul_CPExits * exit,
-ARMul_LDCs * ldc,
-ARMul_STCs * stc,
-ARMul_MRCs * mrc,
-ARMul_MCRs * mcr,
-ARMul_MRRCs * mrrc,
-ARMul_MCRRs * mcrr,
-ARMul_CDPs * cdp,
-ARMul_CPReads * read, ARMul_CPWrites * write)
+ARMul_CPInits* init,
+ARMul_CPExits* exit,
+ARMul_LDCs* ldc,
+ARMul_STCs* stc,
+ARMul_MRCs* mrc,
+ARMul_MCRs* mcr,
+ARMul_MRRCs* mrrc,
+ARMul_MCRRs* mcrr,
+ARMul_CDPs* cdp,
+ARMul_CPReads* read, ARMul_CPWrites* write)
{
if (init != NULL)
state->CPInit[number] = init;
@@ -311,8 +130,7 @@ ARMul_CPReads * read, ARMul_CPWrites * write)
state->CPWrite[number] = write;
}
-void
-ARMul_CoProDetach(ARMul_State * state, unsigned number)
+void ARMul_CoProDetach(ARMul_State* state, unsigned number)
{
ARMul_CoProAttach(state, number, NULL, NULL,
NoCoPro4R, NoCoPro4W, NoCoPro4W, NoCoPro4R,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 08:40:54 +0100