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2002-03-02 Chris Demetriou <cgd@broadcom.com>

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* mips.igen (loadstore_ea): New function to do effective
	address calculations.
	(do_load, do_load_left, do_load_right, LL, LDD, PREF, do_store,
	do_store_left, do_store_right, SC, SCD, PREFX, SWC1, SWXC1,
	CACHE): Use loadstore_ea to do effective address computations.
This commit is contained in:
Chris Demetriou 2002-03-03 07:36:42 +00:00
parent 043b7057fd
commit 09297648e2
2 changed files with 45 additions and 16 deletions
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8
sim/mips/ChangeLog
View file

@ -1,3 +1,11 @@
2002-03-02 Chris Demetriou <cgd@broadcom.com>
* mips.igen (loadstore_ea): New function to do effective
address calculations.
(do_load, do_load_left, do_load_right, LL, LDD, PREF, do_store,
do_store_left, do_store_right, SC, SCD, PREFX, SWC1, SWXC1,
CACHE): Use loadstore_ea to do effective address computations.
2002-03-02 Chris Demetriou <cgd@broadcom.com>
* interp.c (load_word): Use EXTEND32 rather than SIGNEXTEND.

53
sim/mips/mips.igen
View file

@ -109,6 +109,26 @@
return CIA + 8;
}
// Helper:
//
// Calculate an effective address given a base and an offset.
//
:function:::address_word:loadstore_ea:address_word base, address_word offset
*mipsI:
*mipsII:
*mipsIII:
*mipsIV:
*mipsV:
*vr4100:
*vr5000:
*r3900:
{
return base + offset;
}
// Helper:
//
// Check that an access to a HI/LO register meets timing requirements
@ -1469,7 +1489,7 @@
unsigned64 memval;
address_word vaddr;
vaddr = base + offset;
vaddr = loadstore_ea (SD_, base, offset);
if ((vaddr & access) != 0)
{
SIM_CORE_SIGNAL (SD, STATE_CPU (SD, 0), cia, read_map, access+1, vaddr, read_transfer, sim_core_unaligned_signal);
@ -1497,7 +1517,7 @@
unsigned_word lhs_mask;
unsigned_word temp;
vaddr = base + offset;
vaddr = loadstore_ea (SD_, base, offset);
AddressTranslation (vaddr, isDATA, isLOAD, &paddr, &uncached, isTARGET, isREAL);
paddr = (paddr ^ (reverseendian & mask));
if (BigEndianMem == 0)
@ -1548,7 +1568,7 @@
unsigned64 memval;
address_word vaddr;
vaddr = base + offset;
vaddr = loadstore_ea (SD_, base, offset);
AddressTranslation (vaddr, isDATA, isLOAD, &paddr, &uncached, isTARGET, isREAL);
/* NOTE: SPEC is wrong, has `BigEndianMem == 0' not `BigEndianMem != 0' */
paddr = (paddr ^ (reverseendian & mask));
@ -1695,7 +1715,7 @@
address_word base = GPR[BASE];
address_word offset = EXTEND16 (OFFSET);
{
address_word vaddr = ((unsigned64)base + offset);
address_word vaddr = loadstore_ea (SD_, base, offset);
address_word paddr;
int uncached;
if ((vaddr & 3) != 0)
@ -1736,7 +1756,7 @@
address_word offset = EXTEND16 (OFFSET);
check_u64 (SD_, instruction_0);
{
address_word vaddr = ((unsigned64)base + offset);
address_word vaddr = loadstore_ea (SD_, base, offset);
address_word paddr;
int uncached;
if ((vaddr & 7) != 0)
@ -2103,7 +2123,7 @@
address_word base = GPR[BASE];
address_word offset = EXTEND16 (OFFSET);
{
address_word vaddr = ((unsigned64)base + offset);
address_word vaddr = loadstore_ea (SD_, base, offset);
address_word paddr;
int uncached;
{
@ -2125,7 +2145,7 @@
unsigned64 memval;
address_word vaddr;
vaddr = base + offset;
vaddr = loadstore_ea (SD_, base, offset);
if ((vaddr & access) != 0)
{
SIM_CORE_SIGNAL (SD, STATE_CPU(SD, 0), cia, read_map, access+1, vaddr, write_transfer, sim_core_unaligned_signal);
@ -2151,7 +2171,7 @@
int nr_lhs_bits;
int nr_rhs_bits;
vaddr = base + offset;
vaddr = loadstore_ea (SD_, base, offset);
AddressTranslation (vaddr, isDATA, isSTORE, &paddr, &uncached, isTARGET, isREAL);
paddr = (paddr ^ (reverseendian & mask));
if (BigEndianMem == 0)
@ -2193,7 +2213,7 @@
unsigned64 memval;
address_word vaddr;
vaddr = base + offset;
vaddr = loadstore_ea (SD_, base, offset);
AddressTranslation (vaddr, isDATA, isSTORE, &paddr, &uncached, isTARGET, isREAL);
paddr = (paddr ^ (reverseendian & mask));
if (BigEndianMem != 0)
@ -2232,7 +2252,7 @@
address_word base = GPR[BASE];
address_word offset = EXTEND16 (OFFSET);
{
address_word vaddr = ((unsigned64)base + offset);
address_word vaddr = loadstore_ea (SD_, base, offset);
address_word paddr;
int uncached;
if ((vaddr & 3) != 0)
@ -2273,7 +2293,7 @@
address_word offset = EXTEND16 (OFFSET);
check_u64 (SD_, instruction_0);
{
address_word vaddr = ((unsigned64)base + offset);
address_word vaddr = loadstore_ea (SD_, base, offset);
address_word paddr;
int uncached;
if ((vaddr & 7) != 0)
@ -3889,7 +3909,7 @@
address_word base = GPR[BASE];
address_word index = GPR[INDEX];
{
address_word vaddr = ((unsigned64)base + (unsigned64)index);
address_word vaddr = loadstore_ea (SD_, base, index);
address_word paddr;
int uncached;
if (AddressTranslation(vaddr,isDATA,isLOAD,&paddr,&uncached,isTARGET,isREAL))
@ -4054,10 +4074,11 @@
*vr5000:
*r3900:
{
signed_word offset = EXTEND16 (OFFSET);
address_word base = GPR[BASE];
address_word offset = EXTEND16 (OFFSET);
check_fpu(SD_);
{
address_word vaddr = ((uword64)GPR[BASE] + offset);
address_word vaddr = loadstore_ea (SD_, base, offset);
address_word paddr;
int uncached;
if ((vaddr & 3) != 0)
@ -4096,7 +4117,7 @@
check_fpu(SD_);
check_u64 (SD_, instruction_0);
{
address_word vaddr = ((unsigned64)base + index);
address_word vaddr = loadstore_ea (SD_, base, index);
address_word paddr;
int uncached;
if ((vaddr & 3) != 0)
@ -4234,7 +4255,7 @@
address_word base = GPR[BASE];
address_word offset = EXTEND16 (OFFSET);
{
address_word vaddr = (base + offset);
address_word vaddr = loadstore_ea (SD_, base, offset);
address_word paddr;
int uncached;
if (AddressTranslation(vaddr,isDATA,isLOAD,&paddr,&uncached,isTARGET,isREAL))