* Definitions for the support routines *
\***************************************************************************/
-ARMword ARMul_GetReg(ARMul_State *state, unsigned mode, unsigned reg) ;
-void ARMul_SetReg(ARMul_State *state, unsigned mode, unsigned reg, ARMword value) ;
-ARMword ARMul_GetPC(ARMul_State *state) ;
-ARMword ARMul_GetNextPC(ARMul_State *state) ;
-void ARMul_SetPC(ARMul_State *state, ARMword value) ;
-ARMword ARMul_GetR15(ARMul_State *state) ;
-void ARMul_SetR15(ARMul_State *state, ARMword value) ;
-
-ARMword ARMul_GetCPSR(ARMul_State *state) ;
-void ARMul_SetCPSR(ARMul_State *state, ARMword value) ;
-void ARMul_FixCPSR(ARMul_State *state, ARMword instr, ARMword rhs) ;
-ARMword ARMul_GetSPSR(ARMul_State *state, ARMword mode) ;
-void ARMul_SetSPSR(ARMul_State *state, ARMword mode, ARMword value) ;
-void ARMul_FixSPSR(ARMul_State *state, ARMword instr, ARMword rhs) ;
-
-void ARMul_CPSRAltered(ARMul_State *state) ;
-void ARMul_R15Altered(ARMul_State *state) ;
-
-ARMword ARMul_SwitchMode(ARMul_State *state,ARMword oldmode, ARMword newmode) ;
-static ARMword ModeToBank(ARMul_State *state,ARMword mode) ;
-
-unsigned ARMul_NthReg(ARMword instr, unsigned number) ;
-
-void ARMul_NegZero(ARMul_State *state, ARMword result) ;
-void ARMul_AddCarry(ARMul_State *state, ARMword a, ARMword b, ARMword result) ;
-void ARMul_AddOverflow(ARMul_State *state, ARMword a, ARMword b, ARMword result) ;
-void ARMul_SubCarry(ARMul_State *state, ARMword a, ARMword b, ARMword result) ;
-void ARMul_SubOverflow(ARMul_State *state, ARMword a, ARMword b, ARMword result) ;
-
-void ARMul_LDC(ARMul_State *state,ARMword instr,ARMword address) ;
-void ARMul_STC(ARMul_State *state,ARMword instr,ARMword address) ;
-void ARMul_MCR(ARMul_State *state,ARMword instr, ARMword source) ;
-ARMword ARMul_MRC(ARMul_State *state,ARMword instr) ;
-void ARMul_CDP(ARMul_State *state,ARMword instr) ;
-void ARMul_UndefInstr(ARMul_State *state,ARMword instr) ;
-unsigned IntPending(ARMul_State *state) ;
-
-ARMword ARMul_Align(ARMul_State *state, ARMword address, ARMword data) ;
-
-void ARMul_ScheduleEvent(ARMul_State *state, unsigned long delay,
- unsigned (*what)()) ;
-void ARMul_EnvokeEvent(ARMul_State *state) ;
-unsigned long ARMul_Time(ARMul_State *state) ;
-static void EnvokeList(ARMul_State *state, unsigned long from, unsigned long to) ;
-
-struct EventNode { /* An event list node */
- unsigned (*func)() ; /* The function to call */
- struct EventNode *next ;
- } ;
+ARMword ARMul_GetReg (ARMul_State * state, unsigned mode, unsigned reg);
+void ARMul_SetReg (ARMul_State * state, unsigned mode, unsigned reg,
+ ARMword value);
+ARMword ARMul_GetPC (ARMul_State * state);
+ARMword ARMul_GetNextPC (ARMul_State * state);
+void ARMul_SetPC (ARMul_State * state, ARMword value);
+ARMword ARMul_GetR15 (ARMul_State * state);
+void ARMul_SetR15 (ARMul_State * state, ARMword value);
+
+ARMword ARMul_GetCPSR (ARMul_State * state);
+void ARMul_SetCPSR (ARMul_State * state, ARMword value);
+void ARMul_FixCPSR (ARMul_State * state, ARMword instr, ARMword rhs);
+ARMword ARMul_GetSPSR (ARMul_State * state, ARMword mode);
+void ARMul_SetSPSR (ARMul_State * state, ARMword mode, ARMword value);
+void ARMul_FixSPSR (ARMul_State * state, ARMword instr, ARMword rhs);
+
+void ARMul_CPSRAltered (ARMul_State * state);
+void ARMul_R15Altered (ARMul_State * state);
+
+ARMword ARMul_SwitchMode (ARMul_State * state, ARMword oldmode,
+ ARMword newmode);
+static ARMword ModeToBank (ARMul_State * state, ARMword mode);
+
+unsigned ARMul_NthReg (ARMword instr, unsigned number);
+
+void ARMul_NegZero (ARMul_State * state, ARMword result);
+void ARMul_AddCarry (ARMul_State * state, ARMword a, ARMword b,
+ ARMword result);
+void ARMul_AddOverflow (ARMul_State * state, ARMword a, ARMword b,
+ ARMword result);
+void ARMul_SubCarry (ARMul_State * state, ARMword a, ARMword b,
+ ARMword result);
+void ARMul_SubOverflow (ARMul_State * state, ARMword a, ARMword b,
+ ARMword result);
+
+void ARMul_LDC (ARMul_State * state, ARMword instr, ARMword address);
+void ARMul_STC (ARMul_State * state, ARMword instr, ARMword address);
+void ARMul_MCR (ARMul_State * state, ARMword instr, ARMword source);
+ARMword ARMul_MRC (ARMul_State * state, ARMword instr);
+void ARMul_CDP (ARMul_State * state, ARMword instr);
+void ARMul_UndefInstr (ARMul_State * state, ARMword instr);
+unsigned IntPending (ARMul_State * state);
+
+ARMword ARMul_Align (ARMul_State * state, ARMword address, ARMword data);
+
+void ARMul_ScheduleEvent (ARMul_State * state, unsigned long delay,
+ unsigned (*what) ());
+void ARMul_EnvokeEvent (ARMul_State * state);
+unsigned long ARMul_Time (ARMul_State * state);
+static void EnvokeList (ARMul_State * state, unsigned long from,
+ unsigned long to);
+
+struct EventNode
+{ /* An event list node */
+ unsigned (*func) (); /* The function to call */
+ struct EventNode *next;
+};
/***************************************************************************\
* This routine returns the value of a register from a mode. *
\***************************************************************************/
-ARMword ARMul_GetReg(ARMul_State *state, unsigned mode, unsigned reg)
-{mode &= MODEBITS ;
- if (mode != state->Mode)
- return(state->RegBank[ModeToBank(state,(ARMword)mode)][reg]) ;
- else
- return(state->Reg[reg]) ;
+ARMword
+ARMul_GetReg (ARMul_State * state, unsigned mode, unsigned reg)
+{
+ mode &= MODEBITS;
+ if (mode != state->Mode)
+ return (state->RegBank[ModeToBank (state, (ARMword) mode)][reg]);
+ else
+ return (state->Reg[reg]);
}
/***************************************************************************\
* This routine sets the value of a register for a mode. *
\***************************************************************************/
-void ARMul_SetReg(ARMul_State *state, unsigned mode, unsigned reg, ARMword value)
-{mode &= MODEBITS ;
- if (mode != state->Mode)
- state->RegBank[ModeToBank(state,(ARMword)mode)][reg] = value ;
- else
- state->Reg[reg] = value ;
+void
+ARMul_SetReg (ARMul_State * state, unsigned mode, unsigned reg, ARMword value)
+{
+ mode &= MODEBITS;
+ if (mode != state->Mode)
+ state->RegBank[ModeToBank (state, (ARMword) mode)][reg] = value;
+ else
+ state->Reg[reg] = value;
}
/***************************************************************************\
* This routine returns the value of the PC, mode independently. *
\***************************************************************************/
-ARMword ARMul_GetPC(ARMul_State *state)
-{if (state->Mode > SVC26MODE)
- return(state->Reg[15]) ;
- else
- return(R15PC) ;
+ARMword
+ARMul_GetPC (ARMul_State * state)
+{
+ if (state->Mode > SVC26MODE)
+ return (state->Reg[15]);
+ else
+ return (R15PC);
}
/***************************************************************************\
* This routine returns the value of the PC, mode independently. *
\***************************************************************************/
-ARMword ARMul_GetNextPC(ARMul_State *state)
-{if (state->Mode > SVC26MODE)
- return(state->Reg[15] + isize) ;
- else
- return((state->Reg[15] + isize) & R15PCBITS) ;
+ARMword
+ARMul_GetNextPC (ARMul_State * state)
+{
+ if (state->Mode > SVC26MODE)
+ return (state->Reg[15] + isize);
+ else
+ return ((state->Reg[15] + isize) & R15PCBITS);
}
/***************************************************************************\
* This routine sets the value of the PC. *
\***************************************************************************/
-void ARMul_SetPC(ARMul_State *state, ARMword value)
-{if (ARMul_MODE32BIT)
- state->Reg[15] = value & PCBITS ;
- else
- state->Reg[15] = R15CCINTMODE | (value & R15PCBITS) ;
- FLUSHPIPE ;
+void
+ARMul_SetPC (ARMul_State * state, ARMword value)
+{
+ if (ARMul_MODE32BIT)
+ state->Reg[15] = value & PCBITS;
+ else
+ state->Reg[15] = R15CCINTMODE | (value & R15PCBITS);
+ FLUSHPIPE;
}
/***************************************************************************\
* This routine returns the value of register 15, mode independently. *
\***************************************************************************/
-ARMword ARMul_GetR15(ARMul_State *state)
-{if (state->Mode > SVC26MODE)
- return(state->Reg[15]) ;
- else
- return(R15PC | ECC | ER15INT | EMODE) ;
+ARMword
+ARMul_GetR15 (ARMul_State * state)
+{
+ if (state->Mode > SVC26MODE)
+ return (state->Reg[15]);
+ else
+ return (R15PC | ECC | ER15INT | EMODE);
}
/***************************************************************************\
* This routine sets the value of Register 15. *
\***************************************************************************/
-void ARMul_SetR15(ARMul_State *state, ARMword value)
+void
+ARMul_SetR15 (ARMul_State * state, ARMword value)
{
- if (ARMul_MODE32BIT)
- state->Reg[15] = value & PCBITS ;
- else {
- state->Reg[15] = value ;
- ARMul_R15Altered(state) ;
+ if (ARMul_MODE32BIT)
+ state->Reg[15] = value & PCBITS;
+ else
+ {
+ state->Reg[15] = value;
+ ARMul_R15Altered (state);
}
- FLUSHPIPE ;
+ FLUSHPIPE;
}
/***************************************************************************\
* This routine returns the value of the CPSR *
\***************************************************************************/
-ARMword ARMul_GetCPSR(ARMul_State *state)
+ARMword
+ARMul_GetCPSR (ARMul_State * state)
{
- return(CPSR) ;
- }
+ return (CPSR);
+}
/***************************************************************************\
* This routine sets the value of the CPSR *
\***************************************************************************/
-void ARMul_SetCPSR(ARMul_State *state, ARMword value)
-{state->Cpsr = CPSR ;
- SETPSR(state->Cpsr,value) ;
- ARMul_CPSRAltered(state) ;
- }
+void
+ARMul_SetCPSR (ARMul_State * state, ARMword value)
+{
+ state->Cpsr = CPSR;
+ SETPSR (state->Cpsr, value);
+ ARMul_CPSRAltered (state);
+}
/***************************************************************************\
* This routine does all the nasty bits involved in a write to the CPSR, *
* including updating the register bank, given a MSR instruction. *
\***************************************************************************/
-void ARMul_FixCPSR(ARMul_State *state, ARMword instr, ARMword rhs)
-{state->Cpsr = CPSR ;
- if (state->Bank==USERBANK) { /* Only write flags in user mode */
- if (BIT(19)) {
- SETCC(state->Cpsr,rhs) ;
- }
+void
+ARMul_FixCPSR (ARMul_State * state, ARMword instr, ARMword rhs)
+{
+ state->Cpsr = CPSR;
+ if (state->Bank == USERBANK)
+ { /* Only write flags in user mode */
+ if (BIT (19))
+ {
+ SETCC (state->Cpsr, rhs);
+ }
}
- else { /* Not a user mode */
- if (BITS(16,19)==9) SETPSR(state->Cpsr,rhs) ;
- else if (BIT(16)) SETINTMODE(state->Cpsr,rhs) ;
- else if (BIT(19)) SETCC(state->Cpsr,rhs) ;
+ else
+ { /* Not a user mode */
+ if (BITS (16, 19) == 9)
+ SETPSR (state->Cpsr, rhs);
+ else if (BIT (16))
+ SETINTMODE (state->Cpsr, rhs);
+ else if (BIT (19))
+ SETCC (state->Cpsr, rhs);
}
- ARMul_CPSRAltered(state) ;
- }
+ ARMul_CPSRAltered (state);
+}
/***************************************************************************\
* Get an SPSR from the specified mode *
\***************************************************************************/
-ARMword ARMul_GetSPSR(ARMul_State *state, ARMword mode)
-{ARMword bank = ModeToBank(state,mode & MODEBITS) ;
- if (bank == USERBANK || bank == DUMMYBANK)
- return(CPSR) ;
- else
- return(state->Spsr[bank]) ;
+ARMword
+ARMul_GetSPSR (ARMul_State * state, ARMword mode)
+{
+ ARMword bank = ModeToBank (state, mode & MODEBITS);
+ if (bank == USERBANK || bank == DUMMYBANK)
+ return (CPSR);
+ else
+ return (state->Spsr[bank]);
}
/***************************************************************************\
* This routine does a write to an SPSR *
\***************************************************************************/
-void ARMul_SetSPSR(ARMul_State *state, ARMword mode, ARMword value)
-{ARMword bank = ModeToBank(state,mode & MODEBITS) ;
- if (bank != USERBANK && bank !=DUMMYBANK)
- state->Spsr[bank] = value ;
+void
+ARMul_SetSPSR (ARMul_State * state, ARMword mode, ARMword value)
+{
+ ARMword bank = ModeToBank (state, mode & MODEBITS);
+ if (bank != USERBANK && bank != DUMMYBANK)
+ state->Spsr[bank] = value;
}
/***************************************************************************\
* This routine does a write to the current SPSR, given an MSR instruction *
\***************************************************************************/
-void ARMul_FixSPSR(ARMul_State *state, ARMword instr, ARMword rhs)
-{if (state->Bank != USERBANK && state->Bank !=DUMMYBANK) {
- if (BITS(16,19)==9) SETPSR(state->Spsr[state->Bank],rhs) ;
- else if (BIT(16)) SETINTMODE(state->Spsr[state->Bank],rhs) ;
- else if (BIT(19)) SETCC(state->Spsr[state->Bank],rhs) ;
+void
+ARMul_FixSPSR (ARMul_State * state, ARMword instr, ARMword rhs)
+{
+ if (state->Bank != USERBANK && state->Bank != DUMMYBANK)
+ {
+ if (BITS (16, 19) == 9)
+ SETPSR (state->Spsr[state->Bank], rhs);
+ else if (BIT (16))
+ SETINTMODE (state->Spsr[state->Bank], rhs);
+ else if (BIT (19))
+ SETCC (state->Spsr[state->Bank], rhs);
}
}
* changed. Both the processor flags and register bank are updated. *
\***************************************************************************/
-void ARMul_CPSRAltered(ARMul_State *state)
-{ARMword oldmode ;
-
- if (state->prog32Sig == LOW)
- state->Cpsr &= (CCBITS | INTBITS | R15MODEBITS) ;
- oldmode = state->Mode ;
- if (state->Mode != (state->Cpsr & MODEBITS)) {
- state->Mode = ARMul_SwitchMode(state,state->Mode,state->Cpsr & MODEBITS) ;
- state->NtransSig = (state->Mode & 3)?HIGH:LOW ;
+void
+ARMul_CPSRAltered (ARMul_State * state)
+{
+ ARMword oldmode;
+
+ if (state->prog32Sig == LOW)
+ state->Cpsr &= (CCBITS | INTBITS | R15MODEBITS);
+ oldmode = state->Mode;
+ if (state->Mode != (state->Cpsr & MODEBITS))
+ {
+ state->Mode =
+ ARMul_SwitchMode (state, state->Mode, state->Cpsr & MODEBITS);
+ state->NtransSig = (state->Mode & 3) ? HIGH : LOW;
}
- ASSIGNINT(state->Cpsr & INTBITS) ;
- ASSIGNN((state->Cpsr & NBIT) != 0) ;
- ASSIGNZ((state->Cpsr & ZBIT) != 0) ;
- ASSIGNC((state->Cpsr & CBIT) != 0) ;
- ASSIGNV((state->Cpsr & VBIT) != 0) ;
+ ASSIGNINT (state->Cpsr & INTBITS);
+ ASSIGNN ((state->Cpsr & NBIT) != 0);
+ ASSIGNZ ((state->Cpsr & ZBIT) != 0);
+ ASSIGNC ((state->Cpsr & CBIT) != 0);
+ ASSIGNV ((state->Cpsr & VBIT) != 0);
#ifdef MODET
- ASSIGNT((state->Cpsr & TBIT) != 0);
+ ASSIGNT ((state->Cpsr & TBIT) != 0);
#endif
- if (oldmode > SVC26MODE) {
- if (state->Mode <= SVC26MODE) {
- state->Emulate = CHANGEMODE ;
- state->Reg[15] = ECC | ER15INT | EMODE | R15PC ;
- }
+ if (oldmode > SVC26MODE)
+ {
+ if (state->Mode <= SVC26MODE)
+ {
+ state->Emulate = CHANGEMODE;
+ state->Reg[15] = ECC | ER15INT | EMODE | R15PC;
+ }
}
- else {
- if (state->Mode > SVC26MODE) {
- state->Emulate = CHANGEMODE ;
- state->Reg[15] = R15PC ;
- }
- else
- state->Reg[15] = ECC | ER15INT | EMODE | R15PC ;
+ else
+ {
+ if (state->Mode > SVC26MODE)
+ {
+ state->Emulate = CHANGEMODE;
+ state->Reg[15] = R15PC;
+ }
+ else
+ state->Reg[15] = ECC | ER15INT | EMODE | R15PC;
}
}
* This routine should only be called from a 26 bit mode. *
\***************************************************************************/
-void ARMul_R15Altered(ARMul_State *state)
+void
+ARMul_R15Altered (ARMul_State * state)
{
- if (state->Mode != R15MODE) {
- state->Mode = ARMul_SwitchMode(state,state->Mode,R15MODE) ;
- state->NtransSig = (state->Mode & 3)?HIGH:LOW ;
+ if (state->Mode != R15MODE)
+ {
+ state->Mode = ARMul_SwitchMode (state, state->Mode, R15MODE);
+ state->NtransSig = (state->Mode & 3) ? HIGH : LOW;
}
- if (state->Mode > SVC26MODE)
- state->Emulate = CHANGEMODE ;
- ASSIGNR15INT(R15INT) ;
- ASSIGNN((state->Reg[15] & NBIT) != 0) ;
- ASSIGNZ((state->Reg[15] & ZBIT) != 0) ;
- ASSIGNC((state->Reg[15] & CBIT) != 0) ;
- ASSIGNV((state->Reg[15] & VBIT) != 0) ;
+ if (state->Mode > SVC26MODE)
+ state->Emulate = CHANGEMODE;
+ ASSIGNR15INT (R15INT);
+ ASSIGNN ((state->Reg[15] & NBIT) != 0);
+ ASSIGNZ ((state->Reg[15] & ZBIT) != 0);
+ ASSIGNC ((state->Reg[15] & CBIT) != 0);
+ ASSIGNV ((state->Reg[15] & VBIT) != 0);
}
/***************************************************************************\
* Notice the side effect of changing the Bank variable. *
\***************************************************************************/
-ARMword ARMul_SwitchMode(ARMul_State *state,ARMword oldmode, ARMword newmode)
-{unsigned i ;
-
- oldmode = ModeToBank(state,oldmode) ;
- state->Bank = ModeToBank(state,newmode) ;
- if (oldmode != state->Bank) { /* really need to do it */
- switch (oldmode) { /* save away the old registers */
- case USERBANK :
- case IRQBANK :
- case SVCBANK :
- case ABORTBANK :
- case UNDEFBANK : if (state->Bank == FIQBANK)
- for (i = 8 ; i < 13 ; i++)
- state->RegBank[USERBANK][i] = state->Reg[i] ;
- state->RegBank[oldmode][13] = state->Reg[13] ;
- state->RegBank[oldmode][14] = state->Reg[14] ;
- break ;
- case FIQBANK : for (i = 8 ; i < 15 ; i++)
- state->RegBank[FIQBANK][i] = state->Reg[i] ;
- break ;
- case DUMMYBANK : for (i = 8 ; i < 15 ; i++)
- state->RegBank[DUMMYBANK][i] = 0 ;
- break ;
-
- }
- switch (state->Bank) { /* restore the new registers */
- case USERBANK :
- case IRQBANK :
- case SVCBANK :
- case ABORTBANK :
- case UNDEFBANK : if (oldmode == FIQBANK)
- for (i = 8 ; i < 13 ; i++)
- state->Reg[i] = state->RegBank[USERBANK][i] ;
- state->Reg[13] = state->RegBank[state->Bank][13] ;
- state->Reg[14] = state->RegBank[state->Bank][14] ;
- break ;
- case FIQBANK : for (i = 8 ; i < 15 ; i++)
- state->Reg[i] = state->RegBank[FIQBANK][i] ;
- break ;
- case DUMMYBANK : for (i = 8 ; i < 15 ; i++)
- state->Reg[i] = 0 ;
- break ;
- } /* switch */
- } /* if */
- return(newmode) ;
+ARMword
+ARMul_SwitchMode (ARMul_State * state, ARMword oldmode, ARMword newmode)
+{
+ unsigned i;
+
+ oldmode = ModeToBank (state, oldmode);
+ state->Bank = ModeToBank (state, newmode);
+ if (oldmode != state->Bank)
+ { /* really need to do it */
+ switch (oldmode)
+ { /* save away the old registers */
+ case USERBANK:
+ case IRQBANK:
+ case SVCBANK:
+ case ABORTBANK:
+ case UNDEFBANK:
+ if (state->Bank == FIQBANK)
+ for (i = 8; i < 13; i++)
+ state->RegBank[USERBANK][i] = state->Reg[i];
+ state->RegBank[oldmode][13] = state->Reg[13];
+ state->RegBank[oldmode][14] = state->Reg[14];
+ break;
+ case FIQBANK:
+ for (i = 8; i < 15; i++)
+ state->RegBank[FIQBANK][i] = state->Reg[i];
+ break;
+ case DUMMYBANK:
+ for (i = 8; i < 15; i++)
+ state->RegBank[DUMMYBANK][i] = 0;
+ break;
+
+ }
+ switch (state->Bank)
+ { /* restore the new registers */
+ case USERBANK:
+ case IRQBANK:
+ case SVCBANK:
+ case ABORTBANK:
+ case UNDEFBANK:
+ if (oldmode == FIQBANK)
+ for (i = 8; i < 13; i++)
+ state->Reg[i] = state->RegBank[USERBANK][i];
+ state->Reg[13] = state->RegBank[state->Bank][13];
+ state->Reg[14] = state->RegBank[state->Bank][14];
+ break;
+ case FIQBANK:
+ for (i = 8; i < 15; i++)
+ state->Reg[i] = state->RegBank[FIQBANK][i];
+ break;
+ case DUMMYBANK:
+ for (i = 8; i < 15; i++)
+ state->Reg[i] = 0;
+ break;
+ } /* switch */
+ } /* if */
+ return (newmode);
}
/***************************************************************************\
* will be accessed in that mode. *
\***************************************************************************/
-static ARMword ModeToBank(ARMul_State *state, ARMword mode)
-{static ARMword bankofmode[] = {USERBANK, FIQBANK, IRQBANK, SVCBANK,
- DUMMYBANK, DUMMYBANK, DUMMYBANK, DUMMYBANK,
- DUMMYBANK, DUMMYBANK, DUMMYBANK, DUMMYBANK,
- DUMMYBANK, DUMMYBANK, DUMMYBANK, DUMMYBANK,
- USERBANK, FIQBANK, IRQBANK, SVCBANK,
- DUMMYBANK, DUMMYBANK, DUMMYBANK, ABORTBANK,
- DUMMYBANK, DUMMYBANK, DUMMYBANK, UNDEFBANK
- } ;
-
- if (mode > UNDEF32MODE)
- return(DUMMYBANK) ;
- else
- return(bankofmode[mode]) ;
- }
+static ARMword
+ModeToBank (ARMul_State * state, ARMword mode)
+{
+ static ARMword bankofmode[] = { USERBANK, FIQBANK, IRQBANK, SVCBANK,
+ DUMMYBANK, DUMMYBANK, DUMMYBANK, DUMMYBANK,
+ DUMMYBANK, DUMMYBANK, DUMMYBANK, DUMMYBANK,
+ DUMMYBANK, DUMMYBANK, DUMMYBANK, DUMMYBANK,
+ USERBANK, FIQBANK, IRQBANK, SVCBANK,
+ DUMMYBANK, DUMMYBANK, DUMMYBANK, ABORTBANK,
+ DUMMYBANK, DUMMYBANK, DUMMYBANK, UNDEFBANK
+ };
+
+ if (mode > UNDEF32MODE)
+ return (DUMMYBANK);
+ else
+ return (bankofmode[mode]);
+}
/***************************************************************************\
* Returns the register number of the nth register in a reg list. *
\***************************************************************************/
-unsigned ARMul_NthReg(ARMword instr, unsigned number)
-{unsigned bit, upto ;
+unsigned
+ARMul_NthReg (ARMword instr, unsigned number)
+{
+ unsigned bit, upto;
- for (bit = 0, upto = 0 ; upto <= number ; bit++)
- if (BIT(bit)) upto++ ;
- return(bit - 1) ;
+ for (bit = 0, upto = 0; upto <= number; bit++)
+ if (BIT (bit))
+ upto++;
+ return (bit - 1);
}
/***************************************************************************\
* Assigns the N and Z flags depending on the value of result *
\***************************************************************************/
-void ARMul_NegZero(ARMul_State *state, ARMword result)
+void
+ARMul_NegZero (ARMul_State * state, ARMword result)
{
- if (NEG(result)) { SETN ; CLEARZ ; }
- else if (result == 0) { CLEARN ; SETZ ; }
- else { CLEARN ; CLEARZ ; } ;
- }
+ if (NEG (result))
+ {
+ SETN;
+ CLEARZ;
+ }
+ else if (result == 0)
+ {
+ CLEARN;
+ SETZ;
+ }
+ else
+ {
+ CLEARN;
+ CLEARZ;
+ };
+}
/* Compute whether an addition of A and B, giving RESULT, overflowed. */
-int AddOverflow (ARMword a, ARMword b, ARMword result)
+int
+AddOverflow (ARMword a, ARMword b, ARMword result)
{
return ((NEG (a) && NEG (b) && POS (result))
|| (POS (a) && POS (b) && NEG (result)));
}
/* Compute whether a subtraction of A and B, giving RESULT, overflowed. */
-int SubOverflow (ARMword a, ARMword b, ARMword result)
+int
+SubOverflow (ARMword a, ARMword b, ARMword result)
{
return ((NEG (a) && POS (b) && POS (result))
|| (POS (a) && NEG (b) && NEG (result)));
* Assigns the C flag after an addition of a and b to give result *
\***************************************************************************/
-void ARMul_AddCarry(ARMul_State *state, ARMword a,ARMword b,ARMword result)
+void
+ARMul_AddCarry (ARMul_State * state, ARMword a, ARMword b, ARMword result)
{
- ASSIGNC( (NEG(a) && NEG(b)) ||
- (NEG(a) && POS(result)) ||
- (NEG(b) && POS(result)) ) ;
- }
+ ASSIGNC ((NEG (a) && NEG (b)) ||
+ (NEG (a) && POS (result)) || (NEG (b) && POS (result)));
+}
/***************************************************************************\
* Assigns the V flag after an addition of a and b to give result *
\***************************************************************************/
-void ARMul_AddOverflow(ARMul_State *state, ARMword a,ARMword b,ARMword result)
+void
+ARMul_AddOverflow (ARMul_State * state, ARMword a, ARMword b, ARMword result)
{
ASSIGNV (AddOverflow (a, b, result));
}
* Assigns the C flag after an subtraction of a and b to give result *
\***************************************************************************/
-void ARMul_SubCarry(ARMul_State *state, ARMword a,ARMword b,ARMword result)
+void
+ARMul_SubCarry (ARMul_State * state, ARMword a, ARMword b, ARMword result)
{
-ASSIGNC( (NEG(a) && POS(b)) ||
- (NEG(a) && POS(result)) ||
- (POS(b) && POS(result)) ) ;
+ ASSIGNC ((NEG (a) && POS (b)) ||
+ (NEG (a) && POS (result)) || (POS (b) && POS (result)));
}
/***************************************************************************\
* Assigns the V flag after an subtraction of a and b to give result *
\***************************************************************************/
-void ARMul_SubOverflow(ARMul_State *state,ARMword a,ARMword b,ARMword result)
+void
+ARMul_SubOverflow (ARMul_State * state, ARMword a, ARMword b, ARMword result)
{
ASSIGNV (SubOverflow (a, b, result));
}
* modification. It also handles the Busy-Waiting. *
\***************************************************************************/
-void ARMul_LDC(ARMul_State *state,ARMword instr,ARMword address)
-{unsigned cpab ;
- ARMword data ;
+void
+ARMul_LDC (ARMul_State * state, ARMword instr, ARMword address)
+{
+ unsigned cpab;
+ ARMword data;
- UNDEF_LSCPCBaseWb ;
- if (ADDREXCEPT(address)) {
- INTERNALABORT(address) ;
+ UNDEF_LSCPCBaseWb;
+ if (ADDREXCEPT (address))
+ {
+ INTERNALABORT (address);
}
- cpab = (state->LDC[CPNum])(state,ARMul_FIRST,instr,0) ;
- while (cpab == ARMul_BUSY) {
- ARMul_Icycles(state,1,0) ;
- if (IntPending(state)) {
- cpab = (state->LDC[CPNum])(state,ARMul_INTERRUPT,instr,0) ;
- return ;
- }
- else
- cpab = (state->LDC[CPNum])(state,ARMul_BUSY,instr,0) ;
+ cpab = (state->LDC[CPNum]) (state, ARMul_FIRST, instr, 0);
+ while (cpab == ARMul_BUSY)
+ {
+ ARMul_Icycles (state, 1, 0);
+ if (IntPending (state))
+ {
+ cpab = (state->LDC[CPNum]) (state, ARMul_INTERRUPT, instr, 0);
+ return;
+ }
+ else
+ cpab = (state->LDC[CPNum]) (state, ARMul_BUSY, instr, 0);
}
- if (cpab == ARMul_CANT) {
- CPTAKEABORT ;
- return ;
+ if (cpab == ARMul_CANT)
+ {
+ CPTAKEABORT;
+ return;
}
- cpab = (state->LDC[CPNum])(state,ARMul_TRANSFER,instr,0) ;
- data = ARMul_LoadWordN(state,address) ;
- BUSUSEDINCPCN ;
- if (BIT(21))
- LSBase = state->Base ;
- cpab = (state->LDC[CPNum])(state,ARMul_DATA,instr,data) ;
- while (cpab == ARMul_INC) {
- address += 4 ;
- data = ARMul_LoadWordN(state,address) ;
- cpab = (state->LDC[CPNum])(state,ARMul_DATA,instr,data) ;
+ cpab = (state->LDC[CPNum]) (state, ARMul_TRANSFER, instr, 0);
+ data = ARMul_LoadWordN (state, address);
+ BUSUSEDINCPCN;
+ if (BIT (21))
+ LSBase = state->Base;
+ cpab = (state->LDC[CPNum]) (state, ARMul_DATA, instr, data);
+ while (cpab == ARMul_INC)
+ {
+ address += 4;
+ data = ARMul_LoadWordN (state, address);
+ cpab = (state->LDC[CPNum]) (state, ARMul_DATA, instr, data);
}
- if (state->abortSig || state->Aborted) {
- TAKEABORT ;
+ if (state->abortSig || state->Aborted)
+ {
+ TAKEABORT;
}
- }
+}
/***************************************************************************\
* This function does the work of generating the addresses used in an *
* modification. It also handles the Busy-Waiting. *
\***************************************************************************/
-void ARMul_STC(ARMul_State *state,ARMword instr,ARMword address)
-{unsigned cpab ;
- ARMword data ;
+void
+ARMul_STC (ARMul_State * state, ARMword instr, ARMword address)
+{
+ unsigned cpab;
+ ARMword data;
- UNDEF_LSCPCBaseWb ;
- if (ADDREXCEPT(address) || VECTORACCESS(address)) {
- INTERNALABORT(address) ;
+ UNDEF_LSCPCBaseWb;
+ if (ADDREXCEPT (address) || VECTORACCESS (address))
+ {
+ INTERNALABORT (address);
}
- cpab = (state->STC[CPNum])(state,ARMul_FIRST,instr,&data) ;
- while (cpab == ARMul_BUSY) {
- ARMul_Icycles(state,1,0) ;
- if (IntPending(state)) {
- cpab = (state->STC[CPNum])(state,ARMul_INTERRUPT,instr,0) ;
- return ;
- }
- else
- cpab = (state->STC[CPNum])(state,ARMul_BUSY,instr,&data) ;
+ cpab = (state->STC[CPNum]) (state, ARMul_FIRST, instr, &data);
+ while (cpab == ARMul_BUSY)
+ {
+ ARMul_Icycles (state, 1, 0);
+ if (IntPending (state))
+ {
+ cpab = (state->STC[CPNum]) (state, ARMul_INTERRUPT, instr, 0);
+ return;
+ }
+ else
+ cpab = (state->STC[CPNum]) (state, ARMul_BUSY, instr, &data);
}
- if (cpab == ARMul_CANT) {
- CPTAKEABORT ;
- return ;
+ if (cpab == ARMul_CANT)
+ {
+ CPTAKEABORT;
+ return;
}
#ifndef MODE32
- if (ADDREXCEPT(address) || VECTORACCESS(address)) {
- INTERNALABORT(address) ;
+ if (ADDREXCEPT (address) || VECTORACCESS (address))
+ {
+ INTERNALABORT (address);
}
#endif
- BUSUSEDINCPCN ;
- if (BIT(21))
- LSBase = state->Base ;
- cpab = (state->STC[CPNum])(state,ARMul_DATA,instr,&data) ;
- ARMul_StoreWordN(state,address,data) ;
- while (cpab == ARMul_INC) {
- address += 4 ;
- cpab = (state->STC[CPNum])(state,ARMul_DATA,instr,&data) ;
- ARMul_StoreWordN(state,address,data) ;
+ BUSUSEDINCPCN;
+ if (BIT (21))
+ LSBase = state->Base;
+ cpab = (state->STC[CPNum]) (state, ARMul_DATA, instr, &data);
+ ARMul_StoreWordN (state, address, data);
+ while (cpab == ARMul_INC)
+ {
+ address += 4;
+ cpab = (state->STC[CPNum]) (state, ARMul_DATA, instr, &data);
+ ARMul_StoreWordN (state, address, data);
}
- if (state->abortSig || state->Aborted) {
- TAKEABORT ;
+ if (state->abortSig || state->Aborted)
+ {
+ TAKEABORT;
}
- }
+}
/***************************************************************************\
* This function does the Busy-Waiting for an MCR instruction. *
\***************************************************************************/
-void ARMul_MCR(ARMul_State *state,ARMword instr, ARMword source)
-{unsigned cpab ;
-
- cpab = (state->MCR[CPNum])(state,ARMul_FIRST,instr,source) ;
- while (cpab == ARMul_BUSY) {
- ARMul_Icycles(state,1,0) ;
- if (IntPending(state)) {
- cpab = (state->MCR[CPNum])(state,ARMul_INTERRUPT,instr,0) ;
- return ;
- }
- else
- cpab = (state->MCR[CPNum])(state,ARMul_BUSY,instr,source) ;
+void
+ARMul_MCR (ARMul_State * state, ARMword instr, ARMword source)
+{
+ unsigned cpab;
+
+ cpab = (state->MCR[CPNum]) (state, ARMul_FIRST, instr, source);
+ while (cpab == ARMul_BUSY)
+ {
+ ARMul_Icycles (state, 1, 0);
+ if (IntPending (state))
+ {
+ cpab = (state->MCR[CPNum]) (state, ARMul_INTERRUPT, instr, 0);
+ return;
+ }
+ else
+ cpab = (state->MCR[CPNum]) (state, ARMul_BUSY, instr, source);
}
- if (cpab == ARMul_CANT)
- ARMul_Abort(state,ARMul_UndefinedInstrV) ;
- else {
- BUSUSEDINCPCN ;
- ARMul_Ccycles(state,1,0) ;
+ if (cpab == ARMul_CANT)
+ ARMul_Abort (state, ARMul_UndefinedInstrV);
+ else
+ {
+ BUSUSEDINCPCN;
+ ARMul_Ccycles (state, 1, 0);
}
- }
+}
/***************************************************************************\
* This function does the Busy-Waiting for an MRC instruction. *
\***************************************************************************/
-ARMword ARMul_MRC(ARMul_State *state,ARMword instr)
-{unsigned cpab ;
- ARMword result = 0 ;
-
- cpab = (state->MRC[CPNum])(state,ARMul_FIRST,instr,&result) ;
- while (cpab == ARMul_BUSY) {
- ARMul_Icycles(state,1,0) ;
- if (IntPending(state)) {
- cpab = (state->MRC[CPNum])(state,ARMul_INTERRUPT,instr,0) ;
- return(0) ;
- }
- else
- cpab = (state->MRC[CPNum])(state,ARMul_BUSY,instr,&result) ;
+ARMword
+ARMul_MRC (ARMul_State * state, ARMword instr)
+{
+ unsigned cpab;
+ ARMword result = 0;
+
+ cpab = (state->MRC[CPNum]) (state, ARMul_FIRST, instr, &result);
+ while (cpab == ARMul_BUSY)
+ {
+ ARMul_Icycles (state, 1, 0);
+ if (IntPending (state))
+ {
+ cpab = (state->MRC[CPNum]) (state, ARMul_INTERRUPT, instr, 0);
+ return (0);
+ }
+ else
+ cpab = (state->MRC[CPNum]) (state, ARMul_BUSY, instr, &result);
}
- if (cpab == ARMul_CANT) {
- ARMul_Abort(state,ARMul_UndefinedInstrV) ;
- result = ECC ; /* Parent will destroy the flags otherwise */
+ if (cpab == ARMul_CANT)
+ {
+ ARMul_Abort (state, ARMul_UndefinedInstrV);
+ result = ECC; /* Parent will destroy the flags otherwise */
}
- else {
- BUSUSEDINCPCN ;
- ARMul_Ccycles(state,1,0) ;
- ARMul_Icycles(state,1,0) ;
+ else
+ {
+ BUSUSEDINCPCN;
+ ARMul_Ccycles (state, 1, 0);
+ ARMul_Icycles (state, 1, 0);
}
- return(result) ;
+ return (result);
}
/***************************************************************************\
* This function does the Busy-Waiting for an CDP instruction. *
\***************************************************************************/
-void ARMul_CDP(ARMul_State *state,ARMword instr)
-{unsigned cpab ;
-
- cpab = (state->CDP[CPNum])(state,ARMul_FIRST,instr) ;
- while (cpab == ARMul_BUSY) {
- ARMul_Icycles(state,1,0) ;
- if (IntPending(state)) {
- cpab = (state->CDP[CPNum])(state,ARMul_INTERRUPT,instr) ;
- return ;
- }
- else
- cpab = (state->CDP[CPNum])(state,ARMul_BUSY,instr) ;
+void
+ARMul_CDP (ARMul_State * state, ARMword instr)
+{
+ unsigned cpab;
+
+ cpab = (state->CDP[CPNum]) (state, ARMul_FIRST, instr);
+ while (cpab == ARMul_BUSY)
+ {
+ ARMul_Icycles (state, 1, 0);
+ if (IntPending (state))
+ {
+ cpab = (state->CDP[CPNum]) (state, ARMul_INTERRUPT, instr);
+ return;
+ }
+ else
+ cpab = (state->CDP[CPNum]) (state, ARMul_BUSY, instr);
}
- if (cpab == ARMul_CANT)
- ARMul_Abort(state,ARMul_UndefinedInstrV) ;
- else
- BUSUSEDN ;
+ if (cpab == ARMul_CANT)
+ ARMul_Abort (state, ARMul_UndefinedInstrV);
+ else
+ BUSUSEDN;
}
/***************************************************************************\
* This function handles Undefined instructions, as CP isntruction *
\***************************************************************************/
-void ARMul_UndefInstr(ARMul_State *state,ARMword instr)
+void
+ARMul_UndefInstr (ARMul_State * state, ARMword instr)
{
- ARMul_Abort(state,ARMul_UndefinedInstrV) ;
+ ARMul_Abort (state, ARMul_UndefinedInstrV);
}
/***************************************************************************\
* Return TRUE if an interrupt is pending, FALSE otherwise. *
\***************************************************************************/
-unsigned IntPending(ARMul_State *state)
-{
- if (state->Exception) { /* Any exceptions */
- if (state->NresetSig == LOW) {
- ARMul_Abort(state,ARMul_ResetV) ;
- return(TRUE) ;
- }
- else if (!state->NfiqSig && !FFLAG) {
- ARMul_Abort(state,ARMul_FIQV) ;
- return(TRUE) ;
- }
- else if (!state->NirqSig && !IFLAG) {
- ARMul_Abort(state,ARMul_IRQV) ;
- return(TRUE) ;
- }
+unsigned
+IntPending (ARMul_State * state)
+{
+ if (state->Exception)
+ { /* Any exceptions */
+ if (state->NresetSig == LOW)
+ {
+ ARMul_Abort (state, ARMul_ResetV);
+ return (TRUE);
+ }
+ else if (!state->NfiqSig && !FFLAG)
+ {
+ ARMul_Abort (state, ARMul_FIQV);
+ return (TRUE);
+ }
+ else if (!state->NirqSig && !IFLAG)
+ {
+ ARMul_Abort (state, ARMul_IRQV);
+ return (TRUE);
+ }
}
- return(FALSE) ;
- }
+ return (FALSE);
+}
/***************************************************************************\
* Align a word access to a non word boundary *
\***************************************************************************/
-ARMword ARMul_Align(ARMul_State *state, ARMword address, ARMword data)
-{/* this code assumes the address is really unaligned,
- as a shift by 32 is undefined in C */
+ARMword
+ARMul_Align (ARMul_State * state, ARMword address, ARMword data)
+{ /* this code assumes the address is really unaligned,
+ as a shift by 32 is undefined in C */
- address = (address & 3) << 3 ; /* get the word address */
- return( ( data >> address) | (data << (32 - address)) ) ; /* rot right */
+ address = (address & 3) << 3; /* get the word address */
+ return ((data >> address) | (data << (32 - address))); /* rot right */
}
/***************************************************************************\
* to the function. A delay of zero doesn't work, just call the function. *
\***************************************************************************/
-void ARMul_ScheduleEvent(ARMul_State *state, unsigned long delay, unsigned (*what)())
-{unsigned long when ;
- struct EventNode *event ;
-
- if (state->EventSet++ == 0)
- state->Now = ARMul_Time(state) ;
- when = (state->Now + delay) % EVENTLISTSIZE ;
- event = (struct EventNode *)malloc(sizeof(struct EventNode)) ;
- event->func = what ;
- event->next = *(state->EventPtr + when) ;
- *(state->EventPtr + when) = event ;
+void
+ARMul_ScheduleEvent (ARMul_State * state, unsigned long delay,
+ unsigned (*what) ())
+{
+ unsigned long when;
+ struct EventNode *event;
+
+ if (state->EventSet++ == 0)
+ state->Now = ARMul_Time (state);
+ when = (state->Now + delay) % EVENTLISTSIZE;
+ event = (struct EventNode *) malloc (sizeof (struct EventNode));
+ event->func = what;
+ event->next = *(state->EventPtr + when);
+ *(state->EventPtr + when) = event;
}
/***************************************************************************\
* scheduled events. *
\***************************************************************************/
-void ARMul_EnvokeEvent(ARMul_State *state)
-{static unsigned long then ;
-
- then = state->Now ;
- state->Now = ARMul_Time(state) % EVENTLISTSIZE ;
- if (then < state->Now) /* schedule events */
- EnvokeList(state,then,state->Now) ;
- else if (then > state->Now) { /* need to wrap around the list */
- EnvokeList(state,then,EVENTLISTSIZE-1L) ;
- EnvokeList(state,0L,state->Now) ;
+void
+ARMul_EnvokeEvent (ARMul_State * state)
+{
+ static unsigned long then;
+
+ then = state->Now;
+ state->Now = ARMul_Time (state) % EVENTLISTSIZE;
+ if (then < state->Now) /* schedule events */
+ EnvokeList (state, then, state->Now);
+ else if (then > state->Now)
+ { /* need to wrap around the list */
+ EnvokeList (state, then, EVENTLISTSIZE - 1L);
+ EnvokeList (state, 0L, state->Now);
}
- }
+}
-static void EnvokeList(ARMul_State *state, unsigned long from, unsigned long to)
+static void
+EnvokeList (ARMul_State * state, unsigned long from, unsigned long to)
/* envokes all the entries in a range */
-{struct EventNode *anevent ;
-
- for (; from <= to ; from++) {
- anevent = *(state->EventPtr + from) ;
- while (anevent) {
- (anevent->func)(state) ;
- state->EventSet-- ;
- anevent = anevent->next ;
- }
- *(state->EventPtr + from) = NULL ;
+{
+ struct EventNode *anevent;
+
+ for (; from <= to; from++)
+ {
+ anevent = *(state->EventPtr + from);
+ while (anevent)
+ {
+ (anevent->func) (state);
+ state->EventSet--;
+ anevent = anevent->next;
+ }
+ *(state->EventPtr + from) = NULL;
}
- }
+}
/***************************************************************************\
* This routine is returns the number of clock ticks since the last reset. *
\***************************************************************************/
-unsigned long ARMul_Time(ARMul_State *state)
-{return(state->NumScycles + state->NumNcycles +
- state->NumIcycles + state->NumCcycles + state->NumFcycles) ;
+unsigned long
+ARMul_Time (ARMul_State * state)
+{
+ return (state->NumScycles + state->NumNcycles +
+ state->NumIcycles + state->NumCcycles + state->NumFcycles);
}
projects / deliverable / binutils-gdb.git / blobdiff