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KA10: Fixed some page issues with KS10 ITS

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This commit is contained in:
Richard Cornwell 2021-07-15 09:03:57 -04:00
parent b146ffe786
commit bfef184701
1 changed files with 27 additions and 5 deletions
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32
PDP10/kx10_cpu.c
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@ -2139,6 +2139,8 @@ int page_lookup(t_addr addr, int flag, t_addr *loc, int wr, int cur_context, int
fault_data |= 002000LL << 18;
}
}
if (wr)
fault_data |= 010000LL << 18;
page_fault = 1;
return 0;
}
@ -4814,7 +4816,7 @@ unasign:
} else
#endif
MB = ((uint64)(IR) << 27) | ((uint64)(AC) << 23) | (uint64)(AB);
AB = ub_ptr | 0424;
AB = ub_ptr + 0424;
#if KL
/* If single sections KL10 UUO starts at 425 */
if (!QKLB && !QITS && t20_page)
@ -4885,11 +4887,21 @@ unasign:
((uint64)(prev_ctx & 0160) << 20) |
(ub_ptr >> 9);
Mem_write_nopage();
#if KS_ITS
} else if (QITS) {
/* Save context */
AB ++;
MB = SMASK|BIT2|
((uint64)(fm_sel & 0160) << 23) |
((uint64)(prev_ctx & 0160) << 20) |
ub_ptr & 03777777;
Mem_write_nopage();
#endif
}
#endif
/* Read in new PC and flags */
FLAGS &= ~ (PRV_PUB|BYTI|ADRFLT|TRP1|TRP2);
AB = ub_ptr | 0430;
AB = ub_ptr + 0430;
if (trap_flag != 0)
AB |= 1;
#if !KS
@ -10837,6 +10849,11 @@ skip_op:
/* 70104 */
case 001: /* RDUBR */
#if KS_ITS
if (QITS)
MB = ub_ptr & 03777777;
else
#endif
MB = (ub_ptr >> 9);
/* Set previous section */
MB |= ((uint64)(prev_ctx & 0160)) << 20;
@ -10872,6 +10889,11 @@ skip_op:
prev_ctx = (uint8)(MB >> 20) & 0160;
}
if (MB & BIT2) {
#if KS_ITS
if (QITS)
ub_ptr = MB & 03777777;
else
#endif
ub_ptr = (MB & 03777) << 9;
for (f = 0; f < 512; f++) {
u_tlb[f] = 0;
@ -11651,10 +11673,10 @@ last:
BYF5 = 0;
#if KS_ITS
if (QITS) {
AB = eb_ptr | 0440;
AB = eb_ptr + 0440;
} else
#endif
AB = ub_ptr | 0500;
AB = ub_ptr + 0500;
MB = fault_data;
Mem_write_nopage();
AB++;
@ -11773,7 +11795,7 @@ last:
Mem_write_nopage();
FLAGS |= trap_flag & (TRP1|TRP2);
trap_flag = 1;
AB = ((FLAGS & USER) ? ub_ptr : eb_ptr) | 0420;
AB = ((FLAGS & USER) ? ub_ptr : eb_ptr) + 0420;
f_pc_inh = 1;
pi_cycle = 1;
Mem_read_nopage();