folkert/KEK
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226 commits

Author SHA1 Message Date
folkert van heusden
6ad5802866
operator precedence warning from compiler 2023-03-25 10:33:32 +01:00
folkert van heusden
c708acead1
calculate_physical_address: d_i_space_t instead of a bool 2023-03-25 10:05:56 +01:00
folkert van heusden
b2f3fdb0e9
made word_mode into an enum 2023-03-25 09:56:52 +01:00
folkert van heusden
ba5916f750
SP is not selectable via bit 11 of PSW 
R0...R5 are not selectable via run-mode
 2023-03-24 19:59:52 +01:00
folkert van heusden
c66b79f1c7
typo 2023-03-24 16:35:22 +01:00
folkert van heusden
f0a199f7c1
i/o-read: value returned 2023-03-24 16:24:20 +01:00
folkert van heusden
875e7ff4dd
logging tweak (bus - write) 2023-03-24 16:06:28 +01:00
folkert van heusden
8f183c26ed
logging tweak (bus - read) 2023-03-24 15:54:51 +01:00
folkert van heusden
3618e27553
byte access to PIR register 2023-03-24 15:36:07 +01:00
folkert van heusden
b145bae3d0
const 2023-03-24 15:04:02 +01:00
folkert van heusden
d0359d510f
stack limit register fix (can only change upper 8 bits) 2023-03-24 14:01:53 +01:00
folkert van heusden
0d639fc65a
PIR register 2023-03-24 13:56:53 +01:00
folkert van heusden
19a733be0d
bus::read word-read from odd i/o did not throw 2023-03-24 09:32:30 +01:00
folkert van heusden
2f69f287ef
bus::calculate_physical_address did not handle non-mmu case 2023-03-24 09:12:37 +01:00
folkert van heusden
0fd4a70600
for some reason unixv5 wants to write a word to the system id i/o address 2023-03-23 22:09:19 +01:00
folkert van heusden
c096114c6b
EKBEE expects 18 bit address space with no RAM behind the last 8/16(?)kB 2023-03-23 20:18:36 +01:00
folkert van heusden
82da553c94
EKBE complains when unibus mapping-bit is masked off 2023-03-23 20:11:55 +01:00
folkert van heusden
9fc748e7e5
layout 2023-03-23 19:34:57 +01:00
folkert van heusden
283fc29c81
system size registers should not trap and also be r/o 2023-03-23 19:28:14 +01:00
folkert van heusden
4e6dff4ad9
SYSTEM_11_44 define in bus.h to aid KKTA/KKTB testing 2023-03-23 16:53:39 +01:00
folkert van heusden
921610643c
stack is in d-space 2023-03-23 16:12:17 +01:00
folkert van heusden
5a7c85b34b
log address-space (d/i) 2023-03-23 14:39:06 +01:00
folkert van heusden
f9eb348572
odd trap handling method 2023-03-23 14:19:35 +01:00
folkert van heusden
9ce5cb0bf6
lock bits / get instruction can trap 2023-03-23 12:44:06 +01:00
folkert van heusden
b184068789
always process ACF? not only when mmu enabled?! experiment! 2023-03-23 11:47:40 +01:00
folkert van heusden
45890daf75
MMR0 in byte mode 2023-03-23 09:14:50 +01:00
folkert van heusden
77997c3a63
gave each throw its own unique identifier 2023-03-22 13:51:13 +01:00
folkert van heusden
8a47015a93
replaced schedule_trap by trap() + throw 2023-03-22 13:48:55 +01:00
folkert van heusden
a820edea23
prevent memory leaks when re-adding devices 2023-03-22 13:44:27 +01:00
folkert van heusden
a672841865
clean-up 2023-03-21 21:16:41 +01:00
folkert van heusden
5bad90a820
lock MMR2 when upper 3 bits of MMR0 are set (any of them) 2023-03-21 19:40:32 +01:00
folkert van heusden
253d8437eb
throw exception when scheduling trap 004 for non existing pages 2023-03-21 19:34:58 +01:00
folkert van heusden
7ea2fa0033
only execute trap when MRR0_bit_9 AND MMR0_&_0xf000 == 0 2023-03-21 18:09:36 +01:00
folkert van heusden
06b5c027d3
do not run trap when 4 upper bits of MMR0 are set (any of them), also set bit 12 when there is a case for traping 2023-03-21 15:07:51 +01:00
folkert van heusden
69118435c4
A/W flags of PDR are reset when PAR is written to 2023-03-21 14:02:51 +01:00
folkert van heusden
406c2a5a09
i/o logging: handle peek_only-flag correct 2023-03-21 13:45:17 +01:00
folkert van heusden
470919e85d
If bit 9 of MMR0 is not set, abort an instruction but do not trap 2023-03-21 11:04:04 +01:00
folkert van heusden
49d16a72e6
ACF logic clean-up 2023-03-21 10:59:53 +01:00
folkert van heusden
ff40cdc82c
11/34 mode removed 2023-03-21 10:32:46 +01:00
folkert van heusden
fa9f57caa0
Bit 8 of MMR0 enables relocation only for 'destination'. Implemented by 
checking for bit 8 when doing a write.

https://retrocomputing.stackexchange.com/questions/24664/pdp-11-34-bit-8-in-mmr0-maintenance-mode-what-does-it-do
 2023-03-21 09:00:40 +01:00
folkert van heusden
6ac4a9ecb6
odd address check in i/o when in !word_mode 2023-03-21 08:49:49 +01:00
folkert van heusden
c77ae1d617
bus: trap(4) when reading from/writing to i/o or ram that does not exists/is not mapped 2023-03-20 22:27:04 +01:00
folkert van heusden
d8912d66f4
always clear MMR3 bit 5 as unibus mapping is not implemented yet 2023-03-20 21:10:16 +01:00
folkert van heusden
6cbb5c3faa
11/70 has only 8 bits for "microprogram break register"? 2023-03-20 19:39:31 +01:00
folkert van heusden
3df5d20152
ADDR_MICROPROG_BREAK_REG read access 2023-03-20 18:16:29 +01:00
folkert van heusden
84fd36f771
odd addressing trap in i/o space 2023-03-20 18:01:50 +01:00
folkert van heusden
831a01a5b1
fix for CLR & odd addressing-trap 2023-03-20 16:02:27 +01:00
folkert van heusden
ce730c6ea1
microprogram break register 2023-03-20 14:23:32 +01:00
folkert van heusden
2bf8b92217
0177764: system id 2023-03-20 09:58:56 +01:00
folkert van heusden
35eed8e117
MTP./MFP. trap on odd addressing 2023-03-19 20:57:07 +01:00