PiDP-8/I Software

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50 most recent check-ins

2021-11-16
02:34
Merged udevadm fix in Leaf check-in: 41daa2863b user: tangent tags: pi4-gpio-clean
02:34
Calling udevadm from the "make install-system" target via a relative path since the upstream OSes keep moving it about. It's been found in /sbin, /bin and /usr/bin! Leaf check-in: 870c65f831 user: tangent tags: trunk
2021-11-09
01:16
First version of fixes. "Why are the ILS equations now not symmetrical excepting the scaling factor?" https://tangentsoft.com/pidp8i/tktview?name=135d14a0c2 "Extremely low throttle values cause blinky display" https://tangentsoft.com/pidp8i/tktview?name=b8d9865f31 Perhaps also "ILS brightness takes seconds to settle at low throttle values" https://tangentsoft.com/pidp8i/tktview?name=26cc6b3614 In the initial test version I deliberately exaggerated the rise and decay delays just so that people testing this are convinced this is really still doing a "lamp" simulation. Perhaps one should make those settings user configurable anyway. Still to do: fix some code indentation, check if there are comments that are no longer describing the current code, check if the timing of the switch management is still ok. Leaf check-in: 44e6476477 user: HBEggenstein tags: led-update-fixes
00:09
Begin branch to fix some LED update issues: -prevent excessive undersampling of the LED states especially with high (unthrottled) instructions-per-second rates -speed up the ILS thread by reducing the number of GPIO switching -fix a bug in the calculation of the target brightness when the number of sampled instructions is rel. low (say < 100) -improve double buffering of LED "display" : swap displays only when updates were made (helps with extremly aggressive throttling) check-in: febe31baea user: HBEggenstein tags: led-update-fixes
2021-11-08
23:33
Begin branch to fix some issues related to the LED panel display Leaf check-in: 556e1a6952 user: HBEggenstein tags: bogus, led-fixes
2021-10-31
22:41
in order to check whether a deposit is made to nonexistent memory, the memory size need to be passed now in the handle_flow_control_switches function. Now the code even compiles.. Leaf check-in: 01aa183fda user: HBEggenstein tags: fix-dep-exam-ignore-if
20:15
Begin branch with fix for bug : "Deposit and Exam limited to first 4096 words" check-in: ccf47d95d4 user: HBEggenstein tags: fix-dep-exam-ignore-if
2021-10-23
14:16
I2CB: build process, documentation improvements As this feature is still experimental and to allow the continuous integration to build the simh executable without th installed dependencies (libi2cd), the I2CB device logic is not included in the build by default for now, but configure offers the --i2c-bridge option to enable it, provided the libi2cd lib and header file can be found. Leaf check-in: 36a77478e0 user: HBEggenstein tags: i2c-bridge-device
2021-10-18
07:54
I2CB: reformatted source code, added some documentation, changed (C) remark as per Warren Young's feedback check-in: 3a58bc038e user: HBEggenstein tags: i2c-bridge-device
00:38
Restored a space present in an upstream SIMH file to prevent a pointless merge conflict. check-in: fab3f7655b user: tangent tags: i2c-bridge-device
00:25
Began a new ChangeLog entry with this branch's contribution as its first entry. check-in: bf5d1b8113 user: tangent tags: i2c-bridge-device
00:04
Removed the "PiDP add" and "PiDP end" comments. Those markers are only for injections into upstream files; this one's new. check-in: 151d16011d user: tangent tags: i2c-bridge-device
2021-10-17
21:42
I2CB device: first mostly functional version. check-in: 11736019ce user: HBEggenstein tags: i2c-bridge-device
2021-10-16
13:50
work in progress. minor tweaks but seems to compile and have basic device configuration working now, except attach/detach logic and flawed association between I2C addr and dev no check-in: 6b2c49bf4c user: HBEggenstein tags: i2c-bridge-device
00:41
Work in progress The association of dev no and I2C address per unit need more work check-in: d3432d4092 user: HBEggenstein tags: i2c-bridge-device
2021-10-13
23:07
Initial commit to start a branch exploring the idea of having a generic SIMH device that will forward IOT instructions for configurable PDP-8 devices so they can be implemented on external hardware, typically a microcontroller connected to the host via I2C. This could be used for rapid prototyping of either historical device emulation or emulating custom I/O logic. check-in: fbcfafaf43 user: HBEggenstein tags: i2c-bridge-device
2021-07-12
12:35
Merged trunk changes in check-in: a9eb4a4733 user: tangent tags: pi4-gpio-clean
2021-06-05
12:09
Dropped the ETOS matter from COPYING.md, and clarified the blanket licensing info for the rest of the DEC software. check-in: d80d302db1 user: tangent tags: trunk
2021-05-17
15:18
Changed the way "bosi prepare" handles sshd first start to use a Raspberry Pi specific mechanism that [https://groups.google.com/g/pidp-8/c/qCVLKZoJPkU/m/TLqY2IkaBAAJ | reportedly regenerates the shredded keys]. check-in: 02c35e52bf user: tangent tags: trunk
2021-04-23
19:51
Updated to the latest SIMH to fix a problem with TSS/8 booting. It seems they updated some of the device handling since the Feb 3 update we did just prior to the current stable release. check-in: f02ebe72df user: tangent tags: trunk
2021-04-05
01:18
Tweaks to the U/W FOCAL manual supplement's section on getting program text in, following with the wiki edit to the more generic "Getting Text In" doc. check-in: 19b97405ed user: tangent tags: trunk
2021-04-01
22:07
Added a patch to the build of U/W FOCAL. It puts code that clears EAE Mode B (and copes appropriately with other PDP-8 Family members that don't have EAE Mode B) into a block of initialization code reserved for "CLEAR ANNOYING FLAGS". This should resolve bug 025575a170. check-in: 9f44dd87b8 user: poetnerd tags: trunk
2021-02-15
08:49
Adjustments to the build advice in the readme to track the changes made to "bosi build". check-in: 218401a205 user: tangent tags: trunk
08:10
Added missing ;; in one of the case statements in bosi check-in: 247961207f user: tangent tags: trunk
07:59
Small tweaks to the release process doc. check-in: d28caab153 user: tangent tags: trunk
07:04
Merged yet more changes for v20210214 in Leaf check-in: 73038fadf8 user: tangent tags: release, v20210214
06:57
Reworked the logic in the new "bosi build nls" code so it copies any missing images from UV, rather than blindly copy all of them only when the first one is missing. This lets you re-run the script later, relying on it to fill in the gaps before starting on the expensive parts of the build. check-in: 5ec88693ac user: tangent tags: trunk
06:53
Fixed a misplaced curly brace in previous check-in: 59e778933e user: tangent tags: trunk
06:51
Added the "nls" parameter to "bosi build" so the single-core build can share the images synced as unversioned content up to the public server rather than need to rebuild them. This also clones the images down as part of the repo for the first time, so the user has a more complete clone of the repo. check-in: 3d933f656d user: tangent tags: trunk
06:34
Moved the Python 3 library stuff back up in bosi from "build" to "init" step again after the "sudo make install" step failed, since that may need to run one of the class simh or class os8script Python programs that depend on one of these as root. Using platform binary packages rather than pip3 user packages. check-in: 3a02a9163b user: tangent tags: trunk
03:50
Moved the pip3 install command down from "bosi init" into "bosi build" so it's run as the pidp8i user, not as root. It does us no good to have the Python libraries installed for use by root! check-in: e4a27760c4 user: tangent tags: trunk
03:31
Merged still more trunk tweaks in check-in: 280c662a13 user: tangent tags: release, v20210214
03:31
Moved the 8GB image size requirement up after reflecting on the prior change. check-in: 9cac6262d6 user: tangent tags: trunk
03:17
The "bosi shrink" process roached the SD card, and I can't be bothered to figure out why. It's a minor optimization, not worth spending the time on, given that you have to go out of your way to find something smaller than 8GB and end up paying about as much for it when you do find one. I'm therefore betting that almost no one is actually trying to use a 4GB card, the only thing smaller that could possibly work, since even with the shrink, the finished image wouldn't fit on a 2GB card. check-in: d79a842547 user: tangent tags: trunk
02:42
Swapped commands in "sudo time" constructs in bosi so we use the calling shell's builtin version instead of /usr/bin/time, since at least on macOS, the builtin's output is clearer. Tweaked the prior commands to ensure that we don't count the time taken while sudo is blocking waiting for a psssword input against the time taken by the elevated command. check-in: 1ef732c32c user: tangent tags: trunk
02:36
Merged more trunk tweaks in check-in: 50be8bd991 user: tangent tags: release, v20210214
02:36
Comment tweak check-in: 4a67ec5806 user: tangent tags: trunk
01:59
Documented need for prior commit's change in the release process doc. check-in: fba31778b0 user: tangent tags: trunk
01:58
Updated "stretch" to "buster" in tools/bosi check-in: f0461538d2 user: tangent tags: trunk
01:27
Had to reorder and update some of the steps in "bosi prepare" to make it work on the current Rasperry Pi OS version. check-in: aeac6fa347 user: tangent tags: trunk
00:58
More tweaks to the BOSI process. check-in: 356fc7e331 user: tangent tags: trunk
00:14
Merged trunk tweaks in check-in: d6d2943cec user: tangent tags: release, v20210214
00:02
Upped minimum SD card requirement from 2GB to 8GB after "bosi init" failed with an out-of-space message on the "apt upgrade" step, even after removing the biggest disk hogs we can most do without. The Foundation recommends 8GB, so we now do, too. check-in: 0136f1193f user: tangent tags: trunk
2021-02-14
23:10
URL fix check-in: be28caef24 user: tangent tags: trunk
22:51
Merged trunk changes for v20210214 into release branch check-in: 1fa1be1425 user: tangent tags: release, v20210214
22:39
Released v20210214 check-in: fad938bcb7 user: tangent tags: trunk
2021-02-11
06:13
Reworked the way the Python missing module detection stuff works so it generates the proper module names on Debian Buster. Dropped recommendation of easy_install (semi-obsolete) and rewrote the advice it emits to be a bit clearer. check-in: 76133aacd0 user: tangent tags: trunk
2021-02-09
02:18
Mentioned class-os8script doc. Took credit for some stuff. check-in: 3bd3ff0759 user: poetnerd tags: trunk
02:00
Update of ChangeLog to accurately report the fix to UCSYS.BI. check-in: 4e30777357 user: poetnerd tags: trunk
2021-02-08
23:43
"file link" doesn't exist in Jim Tcl, so the new symlink recreation stuff doesn't work when configured without "real" tclsh available. check-in: 1eb3e88ec3 user: tangent tags: trunk