https://wiki.nox-rhea.org/ Tue, 05 May 2026 05:32:17 +0000 FeedCreator 1.8 https://wiki.nox-rhea.org/_media/wiki/dokuwiki.svg https://wiki.nox-rhea.org/ https://wiki.nox-rhea.org/back2root/ibm-pc-ms-dos/interrupts/int_13/int_13_00?rev=1751878305&do=diff INT 0x13 - 0x00 - Reset Disk System Request/Call: reg value descr AH 0x00 DL var drive on DL, if bit 7 is set both hard disks and floppy disks reset Return: reg descr anonymous@undisclosed.example.com (Anonymous) Mon, 07 Jul 2025 08:51:45 +0000 https://wiki.nox-rhea.org/back2root/ibm-pc-ms-dos/interrupts/int_13/int_13_01?rev=1673987728&do=diff INT 0x13 - 0x01 - Disk Status Request/Call: reg value descr AH 0x01 Return: reg descr AL status Values code: 00 no error 01 bad command passed to driver anonymous@undisclosed.example.com (Anonymous) Tue, 17 Jan 2023 20:35:28 +0000 https://wiki.nox-rhea.org/back2root/ibm-pc-ms-dos/interrupts/int_13/int_13_02?rev=1751878710&do=diff INT 0x13 - 0x02 - Read Disk Sector(s) Request/Call: reg value descr AH 0x02 AL var number of sectors to read (1-128 dec.) anonymous@undisclosed.example.com (Anonymous) Mon, 07 Jul 2025 08:58:30 +0000 https://wiki.nox-rhea.org/back2root/ibm-pc-ms-dos/interrupts/int_13/int_13_03?rev=1751878654&do=diff INT 0x13 - 0x03 - Write Disk Sector(s) Request/Call: reg value descr AH 0x03 AL var number of sectors to write (1-128 dec.) anonymous@undisclosed.example.com (Anonymous) Mon, 07 Jul 2025 08:57:34 +0000 https://wiki.nox-rhea.org/back2root/ibm-pc-ms-dos/interrupts/int_13/int_13_08?rev=1753214813&do=diff INT 0x13 - 0x08 - Get Current Drive Parameters (XT & newer) The 1983 version of the “IBM XT BIOS Technical Reference” shows these functions are available for the XT but many other programming references say they aren't available until the AT. anonymous@undisclosed.example.com (Anonymous) Tue, 22 Jul 2025 20:06:53 +0000 https://wiki.nox-rhea.org/back2root/ibm-pc-ms-dos/interrupts/int_13/int_13_09?rev=1753214847&do=diff INT 0x13 - 0x09 - Initialize Hard Disk Controller with drive parameters (AT & PS) The 1983 version of the “IBM XT BIOS Technical Reference” shows these functions are available for the XT but many other programming references say they aren't available until the AT. anonymous@undisclosed.example.com (Anonymous) Tue, 22 Jul 2025 20:07:27 +0000 https://wiki.nox-rhea.org/back2root/ibm-pc-ms-dos/interrupts/int_13/start?rev=1753214744&do=diff Int 13h - Disks - WIP * INT 0x13 - 0x00 - Reset Disk System * INT 0x13 - 0x01 - Disk Status * INT 0x13 - 0x02 - Read Disk Sector(s) * INT 0x13 - 0x03 - Write Disk Sector(s) * INT 0x13 - 0x08 - Get Current Drive Parameters (XT & newer) * INT 0x13 - 0x09 - Initialize Hard Disk Controller with drive parameters (AT & PS) Most disk BIOS calls use the following parameter scheme: reg description AH function request numberAL number of sectors (1-128 dec.)CH cylinder number (0… anonymous@undisclosed.example.com (Anonymous) Tue, 22 Jul 2025 20:05:44 +0000