void
dae_print(u_int *f)
{
struct trapframe *eframe = (void *)f;
if (!ISSET(eframe->tf_dmt0, DMT_VALID))
return;
dae_print_one(0, eframe->tf_dma0, eframe->tf_dmd0, eframe->tf_dmt0);
dae_print_one(1, eframe->tf_dma1, eframe->tf_dmd1, eframe->tf_dmt1);
dae_print_one(2, eframe->tf_dma2, eframe->tf_dmd2, eframe->tf_dmt2);
}
void
dae_process(struct trapframe *eframe, u_int x,
u_int dmax, u_int dmdx, u_int dmtx)
{
u_int v, reg, enbits;
if (!ISSET(dmtx, DMT_VALID))
return;
DAE_DEBUG(dae_print_one(x, dmax, dmdx, dmtx));
enbits = DMT_ENBITS(dmtx);
dmax += dmt_en_info[enbits].offset;
reg = DMT_DREGBITS(dmtx);
if (!ISSET(dmtx, DMT_LOCKBAR)) {
/* the fault is not during an XMEM */
if (x == 2 && ISSET(dmtx, DMT_DOUB1)) {
/* pipeline 2 (earliest stage) for a double */
if (ISSET(dmtx, DMT_WRITE)) {
/*
* STORE DOUBLE WILL BE REINITIATED BY rte
*/
} else {
/* EMULATE ld.d INSTRUCTION */
v = do_load_word(dmax, dmtx & DMT_DAS);
if (reg != 0)
eframe->tf_r[reg] = v;
v = do_load_word(dmax ^ 4, dmtx & DMT_DAS);
if (reg != 31)
eframe->tf_r[reg + 1] = v;
}
} else {
/* not pipeline #2 with a double */
if (dmtx & DMT_WRITE) {
switch (dmt_en_info[enbits].size) {
case DMT_BYTE:
DAE_DEBUG(
printf("[byte %x -> %08x(%c)]\n",
dmdx & 0xff, dmax,
ISSET(dmtx, DMT_DAS) ? 's' : 'u')
);
do_store_byte(dmax, dmdx,
dmtx & DMT_DAS);
break;
case DMT_HALF:
DAE_DEBUG(
printf("[half %x -> %08x(%c)]\n",
dmdx & 0xffff, dmax,
ISSET(dmtx, DMT_DAS) ? 's' : 'u')
);
do_store_half(dmax, dmdx,
dmtx & DMT_DAS);
break;
case DMT_WORD:
DAE_DEBUG(
printf("[word %x -> %08x(%c)]\n",
dmdx, dmax,
ISSET(dmtx, DMT_DAS) ? 's' : 'u')
);
do_store_word(dmax, dmdx,
dmtx & DMT_DAS);
break;
}
} else {
/* else it's a read */
switch (dmt_en_info[enbits].size) {
case DMT_BYTE:
v = do_load_byte(dmax, dmtx & DMT_DAS);
if (!ISSET(dmtx, DMT_SIGNED))
v &= 0x000000ff;
break;
case DMT_HALF:
v = do_load_half(dmax, dmtx & DMT_DAS);
if (!ISSET(dmtx, DMT_SIGNED))
v &= 0x0000ffff;
break;
case DMT_WORD:
v = do_load_word(dmax, dmtx & DMT_DAS);
break;
}
DAE_DEBUG(
if (reg == 0)
printf("[no write to r0 done]\n");
else
printf("[r%d <- %08x]\n", reg, v);
);
if (reg != 0)
eframe->tf_r[reg] = v;
}
}
} else {
