Mid late October work: lDebug subrepo build fix, Symbolic lDebug (Allegory), blog down

• Bugtracker
• Symbolic lDebug build (Allegory)
• wwwecm scripts
• webecm
• lDebug (experimental)
• WINUDF and WINUSB

2026-10-25

Bugtracker #

• Comment on ticket #1029 (link to this comment), detailing the new fix for building with the lDebug subrepos. Also lists the [auth] section added to the user .hgrc file to enable non-interactive hg commands to access the hgweb server.
• In the new comment, hyperlink reference to an earlier comment.

Symbolic lDebug build (Allegory) #

The server now generates a new lDebug build known as Allegory (available in the file allegory.zip) which has the executables lcsym(x)(u).com which identify as ‘Symbolic lDebug(X)’.

These builds have the _SYMBOLIC option enabled, in addition to the typical CDebug(X) options. The _SYMBOLIC option implies that the _DUALCODE option is enabled by default, too.

• Add Allegory build for Symbolic lDebug to mak.sh (identified from UPDATEDLNAME being set to "allegory").
• Add first test stub for symbolic build.
• Set the _FILENAME define for allegory build too.

In addition to the lDebug changesets added, the allegory directory of the build scripting had to be prepared. To do this, I did ‘hg init allegory’, added the ‘allegory/.hg/hgrc’ file and filled its ‘[subpaths]’ section (as mentioned in ticket #1029), then pulled in most of the ldebug repo's changesets to avoid listing 7000+ changesets in the automatically generated log sent by email.

wwwecm scripts #

Add the allegory build.

webecm #

Update on dokuwiki being unavailable due to the PHP vulnerabilities. It will be restored once we have updated the server to run Debian 13 rather than the obsolete Debian 11.

lDebug (experimental) #

• Add new test Extension for lDebug, eldtestw.eld
• Add 386 patching to eldtestw.eld
• Add a multi-purpose puts handler.
• Fix the _DEBUG1 code, call test_high_limit agreeing with the label names and other calls in the memory access functions.
• Add links for getlinear_* functions.
• Fix eldtestw.asm 386.mac using section names known from the debugger, add them as aliases for our ELD section names.
• Add BPRELOC command parsing only to eldtestw.eld
• Inject a BL command for the BPRELOC command.
• In bb.asm fix the conditional preprocessor directives.
• Allow the section_of_function mmacro to work with no label specified before it.
• Add functions to access bb points from ELDs. These all live in CODE2 if dual code sections are enabled. They allow to R/W the in use bit, disabled bit, linear, offset, and number. They allow RO access to the ID and WHEN condition. A few functions originally included in bb.asm are exported as code links and added to sections.mac to allow calling them from ELDs and the CODE2 section.
• Add new test ELD, eldtestx.eld, which reads out all bb info using the new bb functions.
• In eldtestw.asm parse keywords for BPRELOC DEST or BPRELOC DELTA.
• Add data links for number of G, bb, and sym breakpoints.
• eldtestw.asm:
  • Fix to preserve the AL value for BPRELOC DEST.
  • Implement BPRELOC.
  • Add BPRELOC MOVS command to read relocation addresses from access variables, expected to be set by a REP MOVSB/W/D instruction having been disassembled.
  • Add MOVS command to detect a REP MOVS instruction, display the instruction ready for assembling, and do breakpoint reloc.
  • Disable bb points and run the immasm command for the detected REP MOVS instruction for MOVS command.
  • Fix multiple bugs in 32-bit READLEN handling. An ADC added the low word rather than high word, and in two spots high and low words were swapped.

WINUDF and WINUSB #

These new programs have recently become available. Despite the "WIN" names, some of them are for plain DOS too. It is assumed that they were created using generative AI assistance.

I looked some into the DOS redirector part of WINUDF, and opened several issues on its repo:

• Ticket #1 close process handles
• Ticket #2 free UMCBs
• Ticket #3 int 2Fh use downlinks to unhook, provide IISP header or a full AMIS multiplexer
• Ticket #4 DOS LFN support
• Ticket #5 DOS 64-bit file size support
• Ticket #6 SHSUCDX instead of MSCDEX