2 * Copyright (c) 2010 ARM Limited
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14 * Copyright (c) 2009 The Regents of The University of Michigan
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43 #ifndef __ARCH_ARM_ISA_HH__
44 #define __ARCH_ARM_ISA_HH__
46 #include "arch/arm/registers.hh"
47 #include "arch/arm/tlb.hh"
48 #include "arch/arm/types.hh"
49 #include "debug/Checkpoint.hh"
60 MiscReg miscRegs[NumMiscRegs];
61 const IntRegIndex *intRegMap;
64 updateRegMap(CPSR cpsr)
69 intRegMap = IntRegUsrMap;
72 intRegMap = IntRegFiqMap;
75 intRegMap = IntRegIrqMap;
78 intRegMap = IntRegSvcMap;
81 intRegMap = IntRegMonMap;
84 intRegMap = IntRegAbtMap;
87 intRegMap = IntRegUndMap;
90 panic("Unrecognized mode setting in CPSR.\n");
97 MiscReg readMiscRegNoEffect(int misc_reg);
98 MiscReg readMiscReg(int misc_reg, ThreadContext *tc);
99 void setMiscRegNoEffect(int misc_reg, const MiscReg &val);
100 void setMiscReg(int misc_reg, const MiscReg &val, ThreadContext *tc);
103 flattenIntIndex(int reg)
106 if (reg < NUM_ARCH_INTREGS) {
107 return intRegMap[reg];
108 } else if (reg < NUM_INTREGS) {
111 int mode = reg / intRegsPerMode;
112 reg = reg % intRegsPerMode;
116 return INTREG_USR(reg);
118 return INTREG_FIQ(reg);
120 return INTREG_IRQ(reg);
122 return INTREG_SVC(reg);
124 return INTREG_MON(reg);
126 return INTREG_ABT(reg);
128 return INTREG_UND(reg);
130 panic("Flattening into an unknown mode.\n");
136 flattenFloatIndex(int reg)
142 flattenMiscIndex(int reg)
144 if (reg == MISCREG_SPSR) {
145 int spsr_idx = NUM_MISCREGS;
146 CPSR cpsr = miscRegs[MISCREG_CPSR];
149 warn("User mode does not have SPSR\n");
150 spsr_idx = MISCREG_SPSR;
153 spsr_idx = MISCREG_SPSR_FIQ;
156 spsr_idx = MISCREG_SPSR_IRQ;
159 spsr_idx = MISCREG_SPSR_SVC;
162 spsr_idx = MISCREG_SPSR_MON;
165 spsr_idx = MISCREG_SPSR_ABT;
168 spsr_idx = MISCREG_SPSR_UND;
171 warn("Trying to access SPSR in an invalid mode: %d\n",
173 spsr_idx = MISCREG_SPSR;
181 void serialize(EventManager *em, std::ostream &os)
183 DPRINTF(Checkpoint, "Serializing Arm Misc Registers\n");
184 SERIALIZE_ARRAY(miscRegs, NumMiscRegs);
186 void unserialize(EventManager *em, Checkpoint *cp,
187 const std::string §ion)
189 DPRINTF(Checkpoint, "Unserializing Arm Misc Registers\n");
190 UNSERIALIZE_ARRAY(miscRegs, NumMiscRegs);
191 CPSR tmp_cpsr = miscRegs[MISCREG_CPSR];
192 updateRegMap(tmp_cpsr);
199 miscRegs[MISCREG_SCTLR_RST] = sctlr;