http://wiki.nox-rhea.org/ Thu, 30 Apr 2026 09:14:12 +0000 FeedCreator 1.8 http://wiki.nox-rhea.org/_media/wiki/dokuwiki.svg http://wiki.nox-rhea.org/ http://wiki.nox-rhea.org/neo-geo/68k-interrupts?rev=1691094121&do=diff 68000 - Interrupts The cartridge systems use 3 auto-vectored interrupt levels. The CD systems use 3 additional vectored interrupts. Interrupts must to be acknowledged for them to re-trigger in the future by writing to register REG_IRQACK. * bit 2: Acknowledge v-blank interrupt anonymous@undisclosed.example.com (Anonymous) Thu, 03 Aug 2023 20:22:01 +0000 http://wiki.nox-rhea.org/neo-geo/68k-vectors-table?rev=1691087666&do=diff Motorola 68000 - Vectors Table The vector table consists of a 256 bytes long vector list specific to the 68k. Each vector is a 32-bit address, meaning the table holds '64 vectors'. Each entry is used by the 68k in precise cases. All bootable 68k programs must have a vector table at their very beginning. The anonymous@undisclosed.example.com (Anonymous) Thu, 03 Aug 2023 18:34:26 +0000 http://wiki.nox-rhea.org/neo-geo/mvs-1fs-battery-mod?rev=1690748621&do=diff Neo-Geo - MVS 1FZ Battery mod Why perform this mod? The MVS is designed to be plugged in for most of its life, and it charges the battery up whilst plugged in. If you’re using an MVS at home, it’s likely you’re not going to leave it plugged in all the time, so the normal battery won’t get the necessary recharge. anonymous@undisclosed.example.com (Anonymous) Sun, 30 Jul 2023 20:23:41 +0000 http://wiki.nox-rhea.org/neo-geo/rom-68k-program-header?rev=1690657166&do=diff Neo-Geo Program Header For cartridge systems Address Size Description $100 7 bytes “NEO-GEO” string (first cartridge recognition code). anonymous@undisclosed.example.com (Anonymous) Sat, 29 Jul 2023 18:59:26 +0000 http://wiki.nox-rhea.org/neo-geo/rom-mess-out?rev=1691147407&do=diff Neo-Geo : MESS_OUT MESS_OUT ($C004CE): Generic VRAM output MESS_OUT executes the command buffer in the System ROM's work RAM that starts at BIOS_MESS_BUFFER (constant $10FF00) and goes up to BIOS_MESS_POINT (longword variable $10FDBE). This can be used to display text messages, boxes anonymous@undisclosed.example.com (Anonymous) Fri, 04 Aug 2023 11:10:07 +0000