0x2a: ldl_l({{ EA = Rb + disp; }}, {{ Ra.sl = Mem.sl; }}, LOCKED);
0x2b: ldq_l({{ EA = Rb + disp; }}, {{ Ra.uq = Mem.uq; }}, LOCKED);
0x20: copy_load({{EA = Ra;}},
- {{ fault = xc->copySrcTranslate(EA);}},
+ {{fault = xc->copySrcTranslate(EA);}},
IsMemRef, IsLoad, IsCopy);
}
0x26: sts({{ EA = Rb + disp; }}, {{ Mem.ul = t_to_s(Fa.uq); }});
0x27: stt({{ EA = Rb + disp; }}, {{ Mem.df = Fa; }});
0x24: copy_store({{EA = Rb;}},
- {{ fault = xc->copy(EA);}},
+ {{fault = xc->copy(EA);}},
IsMemRef, IsStore, IsCopy);
}
Fault
SimpleCPU::copySrcTranslate(Addr src)
{
- memReq->reset(src, (dcacheInterface) ?
- dcacheInterface->getBlockSize()
- : 64);
+ static bool no_warn = true;
+ int blk_size = (dcacheInterface) ? dcacheInterface->getBlockSize() : 64;
+ // Only support block sizes of 64 atm.
+ assert(blk_size == 64);
+ int offset = src & (blk_size - 1);
+
+ // Make sure block doesn't span page
+ if (no_warn && (src & (~8191)) == ((src + blk_size) & (~8191))) {
+ warn("Copied block source spans pages.");
+ no_warn = false;
+ }
+
+
+ memReq->reset(src & ~(blk_size - 1), blk_size);
// translate to physical address
Fault fault = xc->translateDataReadReq(memReq);
+ assert(fault != Alignment_Fault);
+
if (fault == No_Fault) {
xc->copySrcAddr = src;
- xc->copySrcPhysAddr = memReq->paddr;
+ xc->copySrcPhysAddr = memReq->paddr + offset;
} else {
xc->copySrcAddr = 0;
xc->copySrcPhysAddr = 0;
Fault
SimpleCPU::copy(Addr dest)
{
+ static bool no_warn = true;
int blk_size = (dcacheInterface) ? dcacheInterface->getBlockSize() : 64;
+ // Only support block sizes of 64 atm.
+ assert(blk_size == 64);
uint8_t data[blk_size];
- assert(xc->copySrcAddr);
- memReq->reset(dest, blk_size);
+ //assert(xc->copySrcAddr);
+ int offset = dest & (blk_size - 1);
+
+ // Make sure block doesn't span page
+ if (no_warn && (dest & (~8191)) == ((dest + blk_size) & (~8191))) {
+ no_warn = false;
+ warn("Copied block destination spans pages. ");
+ }
+
+ memReq->reset(dest & ~(blk_size -1), blk_size);
// translate to physical address
Fault fault = xc->translateDataWriteReq(memReq);
+
+ assert(fault != Alignment_Fault);
+
if (fault == No_Fault) {
- Addr dest_addr = memReq->paddr;
+ Addr dest_addr = memReq->paddr + offset;
// Need to read straight from memory since we have more than 8 bytes.
memReq->paddr = xc->copySrcPhysAddr;
xc->mem->read(memReq, data);