I finally hooked up output from the detected serial port using a DosHelp routine, but it might short lived if I can’t use it after relocation.<\/p>\n
Guess the best part is that the IODelay matches what I see with a debug kernel on the same machine.<\/p>\n
LDRINFO: Loader initialized and running …
Serial out: COM1 Address 3F8 BPB 0X8800:0XB
FileTable 0X8800:0X124A Bootflags: 0X1481
LDR: 0X1000 microFSD: 0X8800 miniFSD: 0X7C endldr: 0X5000
COM: 0X3F8 0X0 0X0 0X0 LPT: 0X378 0X0 0X0
OS2LDR size: 19326 GenuineIntel Type: 0X6 Model: 0X8
IODelay: 244 T0: 0 T1: -2 T2: -263 A20 gate enabled INT15-C1 not supported
bus:dev:func 0:0:0 0:1:0 0:1E:0 0:1F:0 0:1F:1 0:1F:2 0:1F:3 0:1F:5
bus:dev:func 1:0:0* 1:0:1 bus:dev:func 2:3:0*
PCI BIOS 2.16 Number Bus: 3 Status: C00 :: EISA not found
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 – 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 – 00000000000a0000 (reserved)
BIOS-e820: 00000000000e0000 – 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 – 000000003fff06c0 (usable)
BIOS-e820: 000000003fff06c0 – 000000003fff66c0 (ACPI data)
BIOS-e820: 000000003fff66c0 – 000000003fffe700 (ACPI NVS)
BIOS-e820: 000000003fffe700 – 0000000040000000 (reserved)
BIOS-e820: 00000000fec00000 – 00000000fec01000 (reserved)
BIOS-e820: 00000000fee00000 – 00000000fee01000 (reserved)
BIOS-e820: 00000000fff80000 – 0000000100000000 (reserved)<\/p>\n
LDRINFO: End message<\/p>\n","protected":false},"excerpt":{"rendered":"
I finally hooked up output from the detected serial port using a DosHelp routine, but it might short lived if I can’t use it after relocation. Guess the best part […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_links_to":"","_links_to_target":""},"categories":[7,24,31],"tags":[],"class_list":["post-26","post","type-post","status-publish","format-standard","hentry","category-bootldr","category-os2","category-programming"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":449,"url":"https:\/\/www.mgreene.org\/?p=449","url_meta":{"origin":26,"position":0},"title":"NUC7PJYH: Installing Gentoo","author":"Mike","date":"January 3, 2021","format":false,"excerpt":"Start This project was a real rocky start. I was having a hard time booting off the USB and more trouble with a USB keyboard attached. However, when I could get the unit to boot, the chroot worked and I could compile. I was to the point think the unit\u2026","rel":"","context":"In "Gentoo"","block_context":{"text":"Gentoo","link":"https:\/\/www.mgreene.org\/?cat=12"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":471,"url":"https:\/\/www.mgreene.org\/?p=471","url_meta":{"origin":26,"position":1},"title":"NUC7PJYH: Closing out Gentoo on the Intel NUC","author":"Mike","date":"February 20, 2021","format":false,"excerpt":"Well, the NUC is done and everything to working. It is definitely not a speed demon, Geekbench scores prove it with a 158 Single-Core Score and 570 Multi-Core Score. NUC: Gnome Screen NUC: Gnome Overview with settings window, dash to dock, and workspaces to dock. I did try Wayland, and\u2026","rel":"","context":"In "Gentoo"","block_context":{"text":"Gentoo","link":"https:\/\/www.mgreene.org\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.mgreene.org\/wp-content\/uploads\/2021\/02\/about-1.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.mgreene.org\/wp-content\/uploads\/2021\/02\/about-1.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.mgreene.org\/wp-content\/uploads\/2021\/02\/about-1.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.mgreene.org\/wp-content\/uploads\/2021\/02\/about-1.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":460,"url":"https:\/\/www.mgreene.org\/?p=460","url_meta":{"origin":26,"position":2},"title":"NUC7PJYH: Gentoo UEFI Configure","author":"Mike","date":"February 20, 2021","format":false,"excerpt":"This is no fun exercise. I did this over a year ago with my Asrock system, but of course did not record the exact steps, so I had to learn all over again. The best start is to use the Gentoo Handbook example. I used a combination of fdisk and\u2026","rel":"","context":"In "Gentoo"","block_context":{"text":"Gentoo","link":"https:\/\/www.mgreene.org\/?cat=12"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":89,"url":"https:\/\/www.mgreene.org\/?p=89","url_meta":{"origin":26,"position":3},"title":"Gentoo Java emerge issue","author":"Mike","date":"February 8, 2015","format":false,"excerpt":"Once again portage tells me there is an Oracle Java update and I already know it will have to be downloaded manually and moved into \/usr\/portage\/distfiles. I do this, expecting everything to install without a hitch, but it does not. I get the dreaded \u201ctar: This does not look like\u2026","rel":"","context":"In "Gentoo"","block_context":{"text":"Gentoo","link":"https:\/\/www.mgreene.org\/?cat=12"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":612,"url":"https:\/\/www.mgreene.org\/?p=612","url_meta":{"origin":26,"position":4},"title":"MSDOS Booting on a snow day","author":"Mike","date":"January 23, 2022","format":false,"excerpt":"Anyway, big snow day in southeastern Virginia, so to kill time I was looking around at source on the internet. I had played around with the MSDOS start sequence before, but never looked closely. The typical start, considering a start from hard drive, is MBR load to 0x7C00, relocate to\u2026","rel":"","context":"In "msdos"","block_context":{"text":"msdos","link":"https:\/\/www.mgreene.org\/?cat=118"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":35,"url":"https:\/\/www.mgreene.org\/?p=35","url_meta":{"origin":26,"position":5},"title":"JFS BIOS-parameter-block","author":"Mike","date":"May 26, 2008","format":false,"excerpt":"I think I have the JFS BIOS-parameter-block complete and making sense.A bit late but a fair article: eComStation: Not for Everyonealso: multiboot-pc-for-freedos-linux-and-ecomstationAlso, non-related, the Phoenix landing yesterday","rel":"","context":"In "bootldr"","block_context":{"text":"bootldr","link":"https:\/\/www.mgreene.org\/?cat=7"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.mgreene.org\/index.php?rest_route=\/wp\/v2\/posts\/26","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mgreene.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mgreene.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mgreene.org\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mgreene.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=26"}],"version-history":[{"count":0,"href":"https:\/\/www.mgreene.org\/index.php?rest_route=\/wp\/v2\/posts\/26\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.mgreene.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=26"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mgreene.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=26"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mgreene.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=26"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}