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Attempted to clean up mapUnibus() and bus-related faults; how well or ill-advised these changes are remains to be seen

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This commit is contained in:
Jeff 2016-10-31 12:44:29 -07:00 • committed by Jeff Parsons
commit daefc2992c
41 changed files with 1454 additions and 1476 deletions
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4
apps/pdp11/boot/bootstrap/BOOTSTRAP-16KB.lst
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@ -1,9 +1,9 @@
037744: 016701 000026 MOV 26(PC),R1 ; @037776
037744: 016701 000026 MOV 037776,R1
037750: 012702 000352 MOV #352,R2
037754: 005211 INC @R1
037756: 105711 TSTB @R1
037760: 100376 BPL 037756
037762: 116162 000002 037400 MOVB 2(R1),37400(R2)
037770: 005267 177756 INC 177756(PC) ; @037752
037770: 005267 177756 INC 037752
037774: 000765 BR 037750
037776: 177550 .WORD 177550

6
apps/pdp11/boot/bootstrap/README.md
View file

@ -29,20 +29,20 @@ Here's what the **Bootstrap Loader** looks like:
037776 177550
Using any [PDPjs](/modules/pdpjs/) machine with the built-in Debugger, such as this
[PDP-11/20 Boot Test](/devices/pdp11/machine/1120/test/debugger/), the **Bootstrap Loader**
[PDP-11/20 Boot Monitor](/devices/pdp11/machine/1120/monitor/debugger/), the **Bootstrap Loader**
is easily entered with a single Debugger EDIT ("e") command:
e 037744 016701 000026 012702 000352 005211 105711 100376 116162 000002 037400 005267 177756 000765 177550
You can immediately disassemble the code using the Debugger's UNASSEMBLE ("u") command `u 037744 040000`:
037744: 016701 000026 MOV 26(PC),R1 ; @037776
037744: 016701 000026 MOV 037776,R1
037750: 012702 000352 MOV #352,R2
037754: 005211 INC @R1
037756: 105711 TSTB @R1
037760: 100376 BPL 037756
037762: 116162 000002 037400 MOVB 2(R1),37400(R2)
037770: 005267 177756 INC 177756(PC) ; @037752
037770: 005267 177756 INC 037752
037774: 000765 BR 037750
037776: 177550 .WORD 177550