User contributions for NovaSquirrel
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25 April 2024
- 17:5617:56, 25 April 2024 diff hist +3,342 N Audio drivers Start off this page with the drivers I know about current
18 December 2023
- 18:3118:31, 18 December 2023 diff hist +1 m 65c816 for 6502 developers →Small optimizations: Fix a formatting typo current
22 July 2023
- 17:5017:50, 22 July 2023 diff hist +227 Errata →Video: Note about how rectangular sprites do vertical flips
10 July 2023
- 16:5516:55, 10 July 2023 diff hist +26 Memory map →Overall: Add link to MEMSEL current
12 June 2023
- 18:4118:41, 12 June 2023 diff hist +188 Tricky-to-emulate games Added Speedy Gonzales
4 May 2023
- 14:4414:44, 4 May 2023 diff hist −228 Uncommon graphics mode games →BG Mode 7 EXTBG: I went and checked the Bowser fight with Mesen2's register viewer, and extbg is not enabled
18 January 2023
- 19:0519:05, 18 January 2023 diff hist +24 PPU registers Update note about what ZSNES does
5 October 2022
- 20:0820:08, 5 October 2022 diff hist +31 Memory map →ExHiROM: Add diagram
- 20:0720:07, 5 October 2022 diff hist +232 N File:Snes exhirom map.png Map of Super NES address space in mode $25 ("ExHiROM") Edit by lidnariq of the HiROM map originally made by Damian Yerrick https://forums.nesdev.org/viewtopic.php?p=283508&sid=b7787101ceda9ec7e25a4485d45ebc77#p283508
31 July 2022
- 16:3416:34, 31 July 2022 diff hist +332 Tools Add the web tools I made
7 June 2022
- 18:3918:39, 7 June 2022 diff hist +20 SNESdev Wiki →Registers: Add red link for APU registers
- 01:4301:43, 7 June 2022 diff hist +308 Uncommon graphics mode games →Vertical Offset-per-tile: Aladdin, Axelay, Battletoads, Super Turrican 2
- 01:3301:33, 7 June 2022 diff hist +350 Uncommon graphics mode games Mode 7 EXTBG
- 01:2201:22, 7 June 2022 diff hist +133 Uncommon graphics mode games →Horizontal Offset-per-tile: Super Mario Bros 2
5 June 2022
- 18:3318:33, 5 June 2022 diff hist +156 Uncommon graphics mode games →Mode 3 8bpp: Add Sim City 2000 and Zoop
2 June 2022
- 03:3403:34, 2 June 2022 diff hist +2,252 N Register sizes in ca65 Created page with "When the 65c816's registers switch between being 8-bit and 16-bit, that affects how the processor expects instructions with immediate operands to be stored. For example, when the 65c816 encounters opcode <code>A9</code> (which is <code>LDA #value</code>) the current size of the accumulator determines if it will try to read one or two bytes after the opcode. This creates a problem for assemblers - they have to know whether to encode <code>LDA #1</code> as <code>A9 01</cod..."
- 03:1803:18, 2 June 2022 diff hist +6 65c816 for 6502 developers →16-bit registers!: Fix the processor flag table
1 June 2022
- 05:2605:26, 1 June 2022 diff hist +53 PPU registers →SETINI - Screen Mode/Video Select ($2133 write): Mention EXTBG's effect in other modes
- 05:0805:08, 1 June 2022 diff hist +67 Uncommon graphics mode games →Mode 0: The Simpsons: Bart's Nightmare
31 May 2022
- 05:5005:50, 31 May 2022 diff hist +9 Errata →DMA: Move the note about RAM-RAM DMA copies up into the invalid A-Bus note
- 04:1004:10, 31 May 2022 diff hist +90 DMA examples →WRAM clear: Add a note about why WRAM clears can't use WRAM source address
30 May 2022
- 00:1300:13, 30 May 2022 diff hist +1 m Uncommon graphics mode games →Vertical Offset-per-tile
- 00:1200:12, 30 May 2022 diff hist +99 Uncommon graphics mode games →Vertical Offset-per-tile: Add Prehistorik Man
28 May 2022
- 20:4020:40, 28 May 2022 diff hist +4,259 N DMA examples Created page with "This page provides examples on how to use DMA registers to do fast copies on the SNES. These examples use the following defines to make the code clearer: <pre> ; Registers Also known as... DMAMODE = $4300 ; DMAPn DMAPPUREG = $4301 ; BBADn DMAADDR = $4302 ; A1TnL DMAADDRHI = $4303 ; A1TnH DMAADDRBANK = $4304 ; A1Bn DMALEN = $4305 ; DASnL DMALENHI = $4306 ; DASnH ; Configuration for $43n0 ; OR these together to get the desired e..."
- 07:2507:25, 28 May 2022 diff hist +181 Multiplication →References: Link to more examples of multiplication routines
26 May 2022
- 20:5620:56, 26 May 2022 diff hist +33 SNESdev Wiki →Peripherals: Add red links for multitap and Super Scope
- 17:3117:31, 26 May 2022 diff hist +244 Errata Convert some links to citations
25 May 2022
- 18:5118:51, 25 May 2022 diff hist +426 Controller reading →Automatic controller reading: Add note about controller reading not happening immediately - see https://forums.nesdev.org/viewtopic.php?p=188011
- 18:3118:31, 25 May 2022 diff hist +125 Talk:Controller reading →HVBJOY current
23 May 2022
- 15:4115:41, 23 May 2022 diff hist +4 Errata →Video: Missing "not"
- 14:3514:35, 23 May 2022 diff hist +436 Errata →Video: Add note about 16x32 sprites and OBJ interlacing
22 May 2022
- 23:0723:07, 22 May 2022 diff hist +8 Uncommon graphics mode games →Horizontal Offset-per-tile: Note that Super Genjin 2 is another Mode 4 offset-per-tile game
- 22:3622:36, 22 May 2022 diff hist +214 SNESdev Wiki →Examples and Guides: Add red links and organize
- 22:0822:08, 22 May 2022 diff hist +102 Errata →Video: Add a note about color math and sprite palettes
- 20:0420:04, 22 May 2022 diff hist +235 Uncommon graphics mode games Add more offset-per-tile games
- 19:4419:44, 22 May 2022 diff hist +162 Uncommon graphics mode games →Vertical Offset-per-tile: Add Bust-a-Move
- 19:2319:23, 22 May 2022 diff hist −42 Booting the SPC700 →Running the SPC700 program: Fix a copy/paste issue
- 19:1819:18, 22 May 2022 diff hist +1 m Controller reading →Automatic controller reading
- 19:0719:07, 22 May 2022 diff hist +25 SNESdev Wiki →Examples and Guides: Controller reading
- 19:0619:06, 22 May 2022 diff hist +3,903 N Controller reading Created page with "The SNES has a feature that can automatically read the game controllers, so the 65c816 does not need to spend any time doing that. The controllers can also be read manually, the same way the NES does it. The automatic reading feature will only read 16 bits from the controller, so peripherals like the Mouse need to be read either completely manually or with a combination of automatic and manual reading. == Automatic controller reading == Automatic controller reading..."
- 17:1517:15, 22 May 2022 diff hist +25 SNESdev Wiki →Examples and Guides: Add Booting the SPC700
- 17:1417:14, 22 May 2022 diff hist +6,872 N Booting the SPC700 Created page with "When the SNES powers on, the SPC700 starts running a small program which does some initialization and then waits to communicate with the 65c816. At this point the 65c816 can instruct the SPC700 to load a new program into its RAM and start running it. This page explains how to do this. Communication with the SPC700 involves four registers - $2140, $2141, $2142 and $2143. These four bytes correspond to $f4, $f5, $f6 and $f7 on the SPC700-side, respectively. When one s..."
- 01:2201:22, 22 May 2022 diff hist +249 Errata The $2143 corruption problem may not actually exist
21 May 2022
- 06:2506:25, 21 May 2022 diff hist +151 Errata →Video
- 06:1106:11, 21 May 2022 diff hist +617 Errata No edit summary
- 05:5405:54, 21 May 2022 diff hist +356 N Talk:Errata Created page with "The stuff on this page definitely needs to be double-checked, and ideally tested on a SNES where applicable. These issues don't seem to be documented very well online, and I've had to rely on forum posts and bits of documentation here and there about problems. - ~~~~"
- 05:4205:42, 21 May 2022 diff hist +13 SNESdev Wiki →General
- 05:4205:42, 21 May 2022 diff hist +148 Errata →Video
- 05:2205:22, 21 May 2022 diff hist +3,146 N Errata Created page with "This page describes quirks in the SNES hardware that programmers need to be aware of. They could be mistakes in the hardware's implementation, or just unintuitive behavior. == Video == * Offset-per-tile never affects the first (leftmost) tile. * The SNES programming manual describes a situation where the Time Over flag is erroneously set when the first hardware sprite is 16x16, 32x32, or 64x64, has a horizontal position of 0-255, and other hardware sprites have nega..."
- 02:1502:15, 21 May 2022 diff hist +383 Division →Division registers
