Clean up some http links, outdated links, and GBZ80 references (#607)

Rangi42 · web-flow · commit 1b3f208dbf12 · 2025-07-03T19:51:34.000+02:00
* Clean up some http links, outdated links, and GBZ80 references

* More https links
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -139,7 +139,7 @@ Tables [were agreed upon](https://github.com/gbdev/pandocs/issues/318) as the be
 - Sums, products: Σ Π
 
 References:
-1. http://www.cs.cornell.edu/courses/cs482/2003su/handouts/pseudocode.pdf
+1. https://www.cs.cornell.edu/courses/cs482/2003su/handouts/pseudocode.pdf
 2. https://blog.usejournal.com/how-to-write-pseudocode-a-beginners-guide-29956242698
 3. https://cs.wmich.edu/gupta/teaching/cs3310/sp18cs3310web/lecture%20notes%20cs3310/PseudocodeBasics.pdf
 4. https://en.wikipedia.org/wiki/Pseudocode#Mathematical_style_pseudocode
diff --git a/src/Audio_details.md b/src/Audio_details.md
@@ -220,7 +220,7 @@ This does not happen under regular operation, but can be achieved by switching f
 ## Game Boy Advance audio
 
 The APU was reworked pretty heavily for the GBA, which introduces some slightly different behavior:
-- Instead of mixing being done by analog circuitry, it's instead done digitally; then, sound is converted to an analog signal and an offset is added (see `SOUNDBIAS` in [GBATEK](http://problemkaputt.de/gbatek.htm#gbasoundcontrolregisters) for more details).
+- Instead of mixing being done by analog circuitry, it's instead done digitally; then, sound is converted to an analog signal and an offset is added (see `SOUNDBIAS` in [GBATEK](https://problemkaputt.de/gbatek.htm#gbasoundcontrolregisters) for more details).
 - This also means that the GBA APU has no DACs.
   Instead, they are emulated digitally such that a disabled "DAC" behaves like an enabled DAC receiving 0 as its input.
 - Additionally, CH3's DAC has its output inverted.
diff --git a/src/CPU_Instruction_Set.md b/src/CPU_Instruction_Set.md
@@ -2,7 +2,7 @@
 
 :::tip
 
-If you are looking for textual explanations of what each each instruction does, please read [gbz80(7)](http://rgbds.gbdev.io/docs/gbz80.7); if you want a compact reference card/cheat sheet of each opcode and its flag effects, please consult [the optables](http://gbdev.io/gb-opcodes/optables) (whose [octal view](http://gbdev.io/gb-opcodes/optables/octal) makes most encoding patterns more apparent).
+If you are looking for textual explanations of what each each instruction does, please read [gbz80(7)](https://rgbds.gbdev.io/docs/gbz80.7); if you want a compact reference card/cheat sheet of each opcode and its flag effects, please consult [the optables](https://gbdev.io/gb-opcodes/optables) (whose [octal view](https://gbdev.io/gb-opcodes/optables/octal) makes most encoding patterns more apparent).
 
 :::
 
diff --git a/src/GBC_Approval_Process.md b/src/GBC_Approval_Process.md
@@ -33,4 +33,4 @@ References:
 
 * ["F the Super Game Boy: Kirby's Dream Land 2"](https://loveconquersallgam.es/post/2487450388/fuck-the-super-game-boy-kirbys-dream-land-2) by Christine Love
 * ["The Making of Snoopy Tennis"](https://sidequestions.medium.com/making-snoopy-tennis-nintendo-gameboy-color-infogrames-mermaid-11bed971526d) by Alexander Hughes
-* ["License Agreement for Game Boy (Western Hemisphere)"](https://web.archive.org/web/20220323183905/https://contracts.onecle.com/thq/nintendo.lic.1999.03.09.shtml)
+* ["License Agreement for Game Boy (Western Hemisphere)"](https://web.archive.org/web/20240414084641/https://contracts.onecle.com/thq/nintendo.lic.1999.03.09.shtml)
diff --git a/src/Gameboy_Printer.md b/src/Gameboy_Printer.md
@@ -131,5 +131,5 @@ Bit \# | Name                | Description
 
 Some sort of RLE? The GB Camera doesn't use it.
 
-([Details and pictures](http://furrtek.free.fr/?a=gbprinter&i=2), need
+([Details and pictures](https://furrtek.free.fr/?a=gbprinter&i=2), need
 to be copied here)
diff --git a/src/HuC1.md b/src/HuC1.md
@@ -50,4 +50,4 @@ behaves like normal cart RAM.
 
 ## External links
 
-- [Source on jrra.zone](http://jrra.zone/blog/huc1.html)
+- [Source on jrra.zone](https://jrra.zone/blog/huc1.html)
diff --git a/src/HuC3.md b/src/HuC3.md
@@ -163,4 +163,4 @@ Location | Purpose
 
 ## External links
 
-- Source: [GBDev Forums thread](http://web.archive.org/web/20231003224822/https://gbdev.gg8.se/forums/viewtopic.php?id=744)
+- Source: [GBDev Forums thread](https://web.archive.org/web/20231003224822/https://gbdev.gg8.se/forums/viewtopic.php?id=744)
diff --git a/src/MBC6.md b/src/MBC6.md
@@ -171,8 +171,8 @@ Write Enable bit to 1, then issue the Unprotect Sector 0 flash command.
 
 ## External links
 
-- Source: [GBDev Forums thread by endrift](http://web.archive.org/web/20240919224258/https://gbdev.gg8.se/forums/viewtopic.php?id=544)
-- Reference: [Nintendo Power Game Boy Memory cartridge documentation](http://iceboy.a-singer.de/doc/np_gb_memory.html)
+- Source: [GBDev Forums thread by endrift](https://web.archive.org/web/20241204030511/https://gbdev.gg8.se/forums/viewtopic.php?id=544)
+- Reference: [Nintendo Power Game Boy Memory cartridge documentation](https://iceboy.a-singer.de/doc/np_gb_memory.html)
   * The NP GB Memory cartridges use a nearly identical flash chip.
     It seemingly only slightly differs in its part number. Therefore,
     the part about the flash chip also applies to Net de Get.
diff --git a/src/MBC7.md b/src/MBC7.md
@@ -111,7 +111,7 @@ still running. Data sheet says that the signal to DO is RDY, thus it
 reads a 1 when the command finishes.
 
 Datasheet:
-[1](http://ww1.microchip.com/downloads/en/DeviceDoc/21712C.pdf)
+[1](https://ww1.microchip.com/downloads/en/DeviceDoc/21712C.pdf)
 
 ### Ax9x-AxFx - Unused
 
diff --git a/src/Memory_Map.md b/src/Memory_Map.md
@@ -98,7 +98,7 @@ The following addresses are supposed to be used as jump vectors:
 -   Interrupts: 0040, 0048, 0050, 0058, 0060
 
 However, this memory area (0000-00FF) may be used for any other purpose in case that your
-program doesn't use any (or only some) [`rst`](https://rgbds.gbdev.io/docs/v0.5.2/gbz80.7#RST_vec) instructions or interrupts. `rst`
+program doesn't use any (or only some) [`rst`](https://rgbds.gbdev.io/docs/gbz80.7#RST_vec) instructions or interrupts. `rst`
 is a 1-byte instruction that works similarly to the 3-byte `call` instruction, except
 that the destination address is restricted. Since it is 1-byte sized,
 it is also slightly faster.
diff --git a/src/Power_Up_Sequence.md b/src/Power_Up_Sequence.md
@@ -184,7 +184,7 @@ That said, if you want to explicitly mark the lack of licensing from Nintendo, y
 
 ### Bypass
 
-The Nintendo logo check has been [circumvented many times](http://fuji.drillspirits.net/?post=87), be it to avoid legal action from Nintendo or for the swag, and there are basically two ways of doing so.
+The Nintendo logo check has been [circumvented many times](https://fuji.drillspirits.net/?post=87), be it to avoid legal action from Nintendo or for the swag, and there are basically two ways of doing so.
 
 One is to exploit a [TOCTTOU](https://en.wikipedia.org/wiki/TOCTTOU) vulnerability in the way the console reads the logo (doing so once to draw it, and the other time to check it), which has however been patched on later revisons of the AGB.
 This requires custom hardware in the cartridge, however, and is made difficult by the timing and order of the reads varying greatly between boot ROMs.
diff --git a/src/Reducing_Power_Consumption.md b/src/Reducing_Power_Consumption.md
@@ -120,8 +120,9 @@ using efficient and tight assembler code which requires as little CPU
 power as possible. Using a high level language will require more CPU
 power and these techniques will not have as big as an effect.
 
-To optimize your code, it might be a good idea to look at [this
-page](https://web.archive.org/web/20230301041000/https://wikiti.brandonw.net/index.php?title=Z80_Optimization),
-although it applies to the original Z80 CPU, so one must adapt the
-optimizations to the GBZ80.
+To optimize your code, it might be a good idea to look at
+[WikiTI's Z80 Optimization page](https://wikiti.brandonw.net/index.php?title=Z80_Optimization)
+(although it applies to the original Z80 CPU, so one must adapt the
+optimizations to the SM83), or at
+[this SM83-specific page](https://github.com/pret/pokecrystal/wiki/Optimizing-assembly-code).
 
diff --git a/src/References.md b/src/References.md
@@ -2,18 +2,18 @@
 
 - [Antonio Niño Díaz - The Cycle-Accurate Game Boy Docs](https://github.com/AntonioND/giibiiadvance/tree/master/docs)
 - [Antonio Niño Díaz - Game Boy Camera RE](https://github.com/AntonioND/gbcam-rev-engineer)
-- [Costis Sideris. The quest for dumping GameBoy Boot ROMs!](http://www.its.caltech.edu/~costis/sgb_hack/)
+- [Costis Sideris. The quest for dumping GameBoy Boot ROMs!](https://www.its.caltech.edu/~costis/sgb_hack/)
 - [Tauwasser. MBC1 - Tauwasser’s Wiki](https://wiki.tauwasser.eu/view/MBC1)
 - [Tauwasser. MBC2 - Tauwasser’s Wiki](https://wiki.tauwasser.eu/view/MBC2)
-- [MBC5 Schematic](https://web.archive.org/web/20090220190205/http://www.semis.demon.co.uk/Gameboy/Gbmain.htm)
+- [MBC5 Schematic](https://web.archive.org/web/20150826205027/http://www.semis.demon.co.uk/Gameboy/Gbmain.htm)
 - [Gekkio. Game Boy: Complete Technical Reference](https://github.com/Gekkio/gb-ctr)
 - [Game Boy CPU (SM83) instruction set](https://gbdev.github.io/gb-opcodes/optables/)
 - [Gekkio. Dumping the Super Game Boy 2 boot ROM](https://gekkio.fi/blog/2015/dumping-the-super-game-boy-2-boot-rom/)
 - [exezin. OAM DMA tutorial](https://web.archive.org/web/20210427065258/https://exez.in/gameboy-dma)
 - [Furrtek - Reverse-engineered schematics for DMG-CPU-B](https://github.com/furrtek/DMG-CPU-Inside)
-- [Furrtek - Game Boy Printer](http://furrtek.free.fr/?a=gbprinter)
+- [Furrtek - Game Boy Printer](https://www.furrtek.org/?a=gbprinter)
 - [Pan of ATX, Marat Fayzullin, Felber Pascal, Robson Paul, and Korth Martin - Pan Docs (previous versions and revisions)](https://github.com/gbdev/pandocs/tree/master/historical)
-- [Jeff Frohwein - DMG, SGB, MBC schematics](https://web.archive.org/web/20120402014839/http://www.devrs.com/gb/hardware.php)
+- [Jeff Frohwein - DMG, SGB, MBC schematics](https://web.archive.org/web/20250317113012/http://www.devrs.com/gb/hardware.php)
 - [Pat Fagan - z80gboy.txt](http://www.z80.info/z80gboy.txt)
 - [Christine Love - F the Super Game Boy: Kirby's Dream Land 2](https://loveconquersallgam.es/post/2487450388/fuck-the-super-game-boy-kirbys-dream-land-2)
 - [Shonumi - Dan Docs](https://shonumi.github.io/dandocs.html)
diff --git a/src/Shark_Cheats.md b/src/Shark_Cheats.md
@@ -21,7 +21,7 @@ Eventually it is also possible to patch external RAM ? Newer devices
 reportedly allow to specify only the first six digits (optionally). 
 Three codes can be used at once.
 
-Check the [Game Genie manual](http://www.digitpress.com/library/manuals/gameboy/game%20genie.pdf) for reference.
+Check the [Game Genie manual](https://www.digitpress.com/library/manuals/gameboy/game%20genie.pdf) for reference.
 
 ## Game Shark (RAM patches)
 
diff --git a/src/The_Cartridge_Header.md b/src/The_Cartridge_Header.md

Original file line number	Diff line number	Diff line change
`@@ -50,4 +50,4 @@ behaves like normal cart RAM.`
`50`	`50`
`51`	`51`	`## External links`
`52`	`52`
`53`		`-- [Source on jrra.zone](http://jrra.zone/blog/huc1.html)`
	`53`	`+- [Source on jrra.zone](https://jrra.zone/blog/huc1.html)`
Original file line number	Diff line number	Diff line change
`@@ -163,4 +163,4 @@ Location \| Purpose`
`163`	`163`
`164`	`164`	`## External links`
`165`	`165`
`166`		`-- Source: [GBDev Forums thread](http://web.archive.org/web/20231003224822/https://gbdev.gg8.se/forums/viewtopic.php?id=744)`
	`166`	`+- Source: [GBDev Forums thread](https://web.archive.org/web/20231003224822/https://gbdev.gg8.se/forums/viewtopic.php?id=744)`