This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/*---------------------------------------------------------------------------*/
-/* Description from page A-22 of the "MIPS IV Instruction Set" manual
- (revision 3.1) */
-/* Translate a virtual address to a physical address and cache
- coherence algorithm describing the mechanism used to resolve the
- memory reference. Given the virtual address vAddr, and whether the
- reference is to Instructions ot Data (IorD), find the corresponding
- physical address (pAddr) and the cache coherence algorithm (CCA)
- used to resolve the reference. If the virtual address is in one of
- the unmapped address spaces the physical address and the CCA are
- determined directly by the virtual address. If the virtual address
- is in one of the mapped address spaces then the TLB is used to
- determine the physical address and access type; if the required
- translation is not present in the TLB or the desired access is not
- permitted the function fails and an exception is taken.
-
- NOTE: Normally (RAW == 0), when address translation fails, this
- function raises an exception and does not return. */
-
-INLINE_SIM_MAIN
-(int)
-address_translation (SIM_DESC sd,
- sim_cpu * cpu,
- address_word cia,
- address_word vAddr,
- int IorD,
- int LorS,
- address_word * pAddr,
- int *CCA,
- int raw)
-{
- int res = -1; /* TRUE : Assume good return */
-
-#ifdef DEBUG
- sim_io_printf (sd, "AddressTranslation(0x%s,%s,%s,...);\n", pr_addr (vAddr), (IorD ? "isDATA" : "isINSTRUCTION"), (LorS ? "iSTORE" : "isLOAD"));
-#endif
-
- /* Check that the address is valid for this memory model */
-
- /* For a simple (flat) memory model, we simply pass virtual
- addressess through (mostly) unchanged. */
- vAddr &= 0xFFFFFFFF;
-
- *pAddr = vAddr; /* default for isTARGET */
- *CCA = Uncached; /* not used for isHOST */
-
- return (res);
-}
-
-
-
-/* Description from page A-23 of the "MIPS IV Instruction Set" manual
- (revision 3.1) */
-/* Prefetch data from memory. Prefetch is an advisory instruction for
- which an implementation specific action is taken. The action taken
- may increase performance, but must not change the meaning of the
- program, or alter architecturally-visible state. */
-
-INLINE_SIM_MAIN (void)
-prefetch (SIM_DESC sd,
- sim_cpu *cpu,
- address_word cia,
- int CCA,
- address_word pAddr,
- address_word vAddr,
- int DATA,
- int hint)
-{
-#ifdef DEBUG
- sim_io_printf(sd,"Prefetch(%d,0x%s,0x%s,%d,%d);\n",CCA,pr_addr(pAddr),pr_addr(vAddr),DATA,hint);
-#endif /* DEBUG */
-
- /* For our simple memory model we do nothing */
- return;
-}
-
/* Description from page A-22 of the "MIPS IV Instruction Set" manual
(revision 3.1) */
/* Load a value from memory. Use the cache and main memory as
pr_addr (pAddr));
}
-#if defined(TRACE)
dotrace (SD, CPU, tracefh,((IorD == isDATA) ? 0 : 2),(unsigned int)(pAddr&0xFFFFFFFF),(AccessLength + 1),"load%s",((IorD == isDATA) ? "" : " instruction"));
-#endif /* TRACE */
/* Read the specified number of bytes from memory. Adjust for
host/target byte ordering/ Align the least significant byte
switch (AccessLength)
{
- case AccessLength_QUADWORD :
+ case AccessLength_QUADWORD:
{
- unsigned_16 val = sim_core_read_aligned_16 (CPU, NULL_CIA, read_map, pAddr);
+ unsigned_16 val = sim_core_read_aligned_16 (CPU, cia, read_map, pAddr);
value1 = VH8_16 (val);
value = VL8_16 (val);
break;
}
- case AccessLength_DOUBLEWORD :
- value = sim_core_read_aligned_8 (CPU, NULL_CIA,
- read_map, pAddr);
+ case AccessLength_DOUBLEWORD:
+ value = sim_core_read_aligned_8 (CPU, cia, read_map, pAddr);
break;
- case AccessLength_SEPTIBYTE :
- value = sim_core_read_misaligned_7 (CPU, NULL_CIA,
- read_map, pAddr);
+ case AccessLength_SEPTIBYTE:
+ value = sim_core_read_misaligned_7 (CPU, cia, read_map, pAddr);
break;
- case AccessLength_SEXTIBYTE :
- value = sim_core_read_misaligned_6 (CPU, NULL_CIA,
- read_map, pAddr);
+ case AccessLength_SEXTIBYTE:
+ value = sim_core_read_misaligned_6 (CPU, cia, read_map, pAddr);
break;
- case AccessLength_QUINTIBYTE :
- value = sim_core_read_misaligned_5 (CPU, NULL_CIA,
- read_map, pAddr);
+ case AccessLength_QUINTIBYTE:
+ value = sim_core_read_misaligned_5 (CPU, cia, read_map, pAddr);
break;
- case AccessLength_WORD :
- value = sim_core_read_aligned_4 (CPU, NULL_CIA,
- read_map, pAddr);
+ case AccessLength_WORD:
+ value = sim_core_read_aligned_4 (CPU, cia, read_map, pAddr);
break;
- case AccessLength_TRIPLEBYTE :
- value = sim_core_read_misaligned_3 (CPU, NULL_CIA,
- read_map, pAddr);
+ case AccessLength_TRIPLEBYTE:
+ value = sim_core_read_misaligned_3 (CPU, cia, read_map, pAddr);
break;
- case AccessLength_HALFWORD :
- value = sim_core_read_aligned_2 (CPU, NULL_CIA,
- read_map, pAddr);
+ case AccessLength_HALFWORD:
+ value = sim_core_read_aligned_2 (CPU, cia, read_map, pAddr);
break;
- case AccessLength_BYTE :
- value = sim_core_read_aligned_1 (CPU, NULL_CIA,
- read_map, pAddr);
+ case AccessLength_BYTE:
+ value = sim_core_read_aligned_1 (CPU, cia, read_map, pAddr);
break;
default:
abort ();
(LOADDRMASK + 1) << 3,
pr_addr(pAddr));
-#if defined(TRACE)
dotrace (SD, CPU, tracefh,1,(unsigned int)(pAddr&0xFFFFFFFF),(AccessLength + 1),"store");
-#endif /* TRACE */
#ifdef DEBUG
printf("DBG: StoreMemory: offset = %d MemElem = 0x%s%s\n",(unsigned int)(pAddr & LOADDRMASK),pr_uword64(MemElem1),pr_uword64(MemElem));
switch (AccessLength)
{
- case AccessLength_QUADWORD :
+ case AccessLength_QUADWORD:
{
unsigned_16 val = U16_8 (MemElem1, MemElem);
- sim_core_write_aligned_16 (CPU, NULL_CIA, write_map, pAddr, val);
+ sim_core_write_aligned_16 (CPU, cia, write_map, pAddr, val);
break;
}
- case AccessLength_DOUBLEWORD :
- sim_core_write_aligned_8 (CPU, NULL_CIA,
- write_map, pAddr, MemElem);
+ case AccessLength_DOUBLEWORD:
+ sim_core_write_aligned_8 (CPU, cia, write_map, pAddr, MemElem);
break;
- case AccessLength_SEPTIBYTE :
- sim_core_write_misaligned_7 (CPU, NULL_CIA,
- write_map, pAddr, MemElem);
+ case AccessLength_SEPTIBYTE:
+ sim_core_write_misaligned_7 (CPU, cia, write_map, pAddr, MemElem);
break;
- case AccessLength_SEXTIBYTE :
- sim_core_write_misaligned_6 (CPU, NULL_CIA,
- write_map, pAddr, MemElem);
+ case AccessLength_SEXTIBYTE:
+ sim_core_write_misaligned_6 (CPU, cia, write_map, pAddr, MemElem);
break;
- case AccessLength_QUINTIBYTE :
- sim_core_write_misaligned_5 (CPU, NULL_CIA,
- write_map, pAddr, MemElem);
+ case AccessLength_QUINTIBYTE:
+ sim_core_write_misaligned_5 (CPU, cia, write_map, pAddr, MemElem);
break;
- case AccessLength_WORD :
- sim_core_write_aligned_4 (CPU, NULL_CIA,
- write_map, pAddr, MemElem);
+ case AccessLength_WORD:
+ sim_core_write_aligned_4 (CPU, cia, write_map, pAddr, MemElem);
break;
- case AccessLength_TRIPLEBYTE :
- sim_core_write_misaligned_3 (CPU, NULL_CIA,
- write_map, pAddr, MemElem);
+ case AccessLength_TRIPLEBYTE:
+ sim_core_write_misaligned_3 (CPU, cia, write_map, pAddr, MemElem);
break;
- case AccessLength_HALFWORD :
- sim_core_write_aligned_2 (CPU, NULL_CIA,
- write_map, pAddr, MemElem);
+ case AccessLength_HALFWORD:
+ sim_core_write_aligned_2 (CPU, cia, write_map, pAddr, MemElem);
break;
- case AccessLength_BYTE :
- sim_core_write_aligned_1 (CPU, NULL_CIA,
- write_map, pAddr, MemElem);
+ case AccessLength_BYTE:
+ sim_core_write_aligned_1 (CPU, cia, write_map, pAddr, MemElem);
break;
default:
abort ();
address_word reverseendian = (ReverseEndian ? (mask ^ access) : 0);
address_word bigendiancpu = (BigEndianCPU ? (mask ^ access) : 0);
unsigned int byte;
- address_word paddr;
- int uncached;
+ address_word paddr = vaddr;
unsigned64 memval;
if ((vaddr & access) != 0)
SignalExceptionInstructionFetch ();
- AddressTranslation (vaddr, isINSTRUCTION, isLOAD, &paddr, &uncached, isTARGET, isREAL);
paddr = ((paddr & ~mask) | ((paddr & mask) ^ reverseendian));
- LoadMemory (&memval, NULL, uncached, access, paddr, vaddr, isINSTRUCTION, isREAL);
+ LoadMemory (&memval, NULL, access, paddr, vaddr, isINSTRUCTION, isREAL);
byte = ((vaddr & mask) ^ bigendiancpu);
return (memval >> (8 * byte));
}
address_word reverseendian = (ReverseEndian ? (mask ^ access) : 0);
address_word bigendiancpu = (BigEndianCPU ? (mask ^ access) : 0);
unsigned int byte;
- address_word paddr;
- int uncached;
+ address_word paddr = vaddr;
unsigned64 memval;
if ((vaddr & access) != 0)
SignalExceptionInstructionFetch ();
- AddressTranslation (vaddr, isINSTRUCTION, isLOAD, &paddr, &uncached, isTARGET, isREAL);
paddr = ((paddr & ~mask) | ((paddr & mask) ^ reverseendian));
- LoadMemory (&memval, NULL, uncached, access, paddr, vaddr, isINSTRUCTION, isREAL);
+ LoadMemory (&memval, NULL, access, paddr, vaddr, isINSTRUCTION, isREAL);
byte = ((vaddr & mask) ^ bigendiancpu);
return (memval >> (8 * byte));
}
projects / deliverable / binutils-gdb.git / blobdiff