https://pushbx.org/ecm/dokuwiki/ 2026-04-26T22:12:49+00:00 https://pushbx.org/ecm/dokuwiki/ https://pushbx.org/ecm/dokuwiki/lib/tpl/dokuwiki/images/favicon.ico text/html 2024-07-29T19:29:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/0729_mid_to_late_july_work?rev=1722274186&do=diff Mid to late July work 2024-07-28 The last two weeks I improved ident86 and used it to identicalise the Enhanced DR-DOS drdos module (ported to JWasm) as well as a new port of MSDebug to NASM. This new port re-used the fixmem.pl script from the WarpLink port to NASM. text/html 2024-12-03T19:11:32+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/1203_november_december_continued_work_on_ms-dos_porting_and_ldebug?rev=1733249492&do=diff November December: Continued work on MS-DOS porting, and lDebug 2024-12-03 This Sunday I was sick at home so I didn't get to write a blog post. Luckily I found some time today (Tuesday). lDebug Some older changesets uploaded now are about comments in the line assembler source texts. text/html 2024-12-04T13:01:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/1204_notes_on_porting_ms-dos_msdos_msbio_share?rev=1733313703&do=diff Notes on porting MS-DOS (msdos, msbio, share) 2024-12-04 I finally get to describe the porting work done on the fork of MS-DOS v4 some. Workflow The final workflow went something like this: * Set and export f variable to next object basename (uncapitalised, without filename extension) text/html 2024-12-11T14:30:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/1211_early_december_work?rev=1733923836&do=diff Early December work 2024-12-08 Today marks the 100th blog post that I wrote on the HP 95LX. It also is likely to be the last post in December due to the café closing for a few weeks starting tomorrow. lDebug The lDebug repo got updated some. * text/html 2024-11-18T19:14:58+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/1118_early_mid_november_work_on_porting_the_ms-dos_kernel?rev=1731953698&do=diff Early mid November work on porting the MS-DOS kernel 2024-11-17 This week I mostly spent on continuing to port parts of the msdos kernel module of my fork of the free software MS-DOS v4 kernel. fixmem This tool was updated to better handle the conversion of the msdos sources. After several small updates, it also gained support for section ENDS directives and handling of ASSUME directives. Assumptions are used to automatically insert segment overrides when accessing variables that are known t… text/html 2024-07-14T20:48:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/0714_early_mid_july_work?rev=1720982886&do=diff Early mid July work 2024-07-14 This week I started the ident86 project, which combines several parts to aid in comparing ports from one assembly language dialect to another. WarpLink The build using the mak.sh script now creates NASM listing files. These are for use with the convert listing files script. text/html 2024-11-25T18:25:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/1125_mid_late_november_work_on_porting_the_ms-dos_kernel?rev=1732555554&do=diff Mid late November work on porting the MS-DOS kernel 2024-11-24 This week I worked on porting some more of the MS-DOS kernel to NASM, starting on the msbio module. x2b2 * Bugfix, when the MZ .EXE header indicates a last page size of 0 this means it text/html 2024-08-09T17:51:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/0809_freedos-devel_mail_on_edr-dos_single-file_load_jwasm_port_and_ident86?rev=1723218674&do=diff freedos-devel mail on EDR-DOS single-file load, JWasm port, and ident86 Copied from my mail to the freedos-devel list. Hello Eric, hello list, On at 2024-07-26 13:04 +0200, Eric Auer via Freedos-devel wrote: " Hi! News from BTTR: <https://www.bttr-software.de/forum/board_entry.php?id=20959&page=0&order=time&category=0> while working on a single-file version of the EDR-DOS kernel, text/html 2024-11-04T18:13:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/1104_october_november_work_on_porting_the_ms-dos_v4.01_kernel?rev=1730740409&do=diff October November work on porting the MS-DOS v4.01 kernel 2024-11-03 Today I finally uploaded the first steps toward porting the free software MS-DOS kernel (released on 2024 April 26) to build with NASM and WarpLink (and x2b2 and round and convlist.pl). So far only one file has been ported. text/html 2024-08-20T19:41:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/0820_mid_august_work_not_much?rev=1724175704&do=diff Mid August work (not much) 2024-08-18 fixmem * Call addequate for section or group names listed in WRT clauses, and add section or group name to the equates structures Enhanced DR-DOS Finished port of drbio to NASM. ident86 * Add -f switch to change or increase default fuzzy compare equal delta limit (from default 32) text/html 2024-08-12T19:21:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/0812_early_august_work?rev=1723483300&do=diff Early August work 2024-08-11 EIDL EIDL was a simple TSR that installed an int 28h handler which runs a hlt instruction, then chains to the prior handler. My adaptation of it combines the simple handler with the TSR example's multiplexer, as well as the optimal installation and advanced deinstallation method. text/html 2024-09-10T19:06:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/0910_early_september_work?rev=1725987971&do=diff Early September work 2024-09-08 The prior week nothing changed and that Sunday I didn't get to write a blog post regardless. This week some changes did happen. inicomp * Add _OPTIMISE_SMALL_INPUT define. Barely used yet. This actually sat in my repo for a while already but I only got around to committing it last Sunday. text/html 2024-08-27T19:19:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/0827_mid_late_august_work?rev=1724779170&do=diff Mid late August work 2024-08-25 lDebug Bernd Böckmann requested a build of lDebug that can be booted on a machine with 256 KiB of low memory. I prepared smalll.sys, which can boot with as little as 192 KiB and leaves 86 KiB resident. This required a few changes: * Fix build with _EXTHELP=0 * Fix build with _EXTENSIONS=0 Unrelated changes: * Update copyright year in debug.asm, msg.asm, uu.asm, the online help page ?L, and the manual lDOS boot (experimental) text/html 2024-09-22T17:53:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://pushbx.org/ecm/dokuwiki/blog/pushbx/2024/0922_mid_september_work_on_fixupp_instsect_and_ldebug?rev=1727020421&do=diff Mid September work on fixupp, instsect, and lDebug 2024-09-22 This week some interesting developments occurred. fixupp This tool is a re-implementation of the ltools/fixupp.exe that was included in the OpenDOS 7.01 Machine Readable Sources package, as that was provided without sources. It operated on RASM-86 output object files to make them compatible with the object files assembled by JWasm. The exact purpose perpetually escapes me.