Edit Infobox GB Homebrews: Hello GB

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{{#seo: |title=GameBrew |title_mode=append |image=hellogb.png |image_alt=hello }} This is a port of an [https://forums.nesdev.org/viewtopic.php?p=81806#p81806 NES sprite demo] by Damian Yerrick to the Game Boy using RGBDS. == Screenshots == https://dlhb.gamebrew.org/gbhomebrews/hellogb2.gif https://dlhb.gamebrew.org/gbhomebrews/hellogb3.gif == Compatibility == Tested by the author on mGBA 0.7-5026-1a6b47a2 and Game Boy Color with an EverDrive GB X5. == Changelog == '''v0.03 2018/05/12''' * Switch to de facto standard hardware.inc (requested by gbdev Discord members). * makefile: Use target name for rgbfix instead of hardcoding hello.gb. * Hide BG and sprites before game loop to avoid sprite garbage (reported by nitro2k01). * Use palette registers instead of LCDC to hide BG and sprites for GBC friendliness (requested by ISSOtm). * Fade out Nintendo logo while detecting Super Game Boy on DMG. * Add GBC palette approximating that used by nrom-template on NES. '''v0.02 2018/03/27''' * Split into separate files paralleling those of nrom-template. * Use RLA SBC A sign extension idiom (suggested by ISSOtm). * Remove unnecessary and broken OAM clearing. * Add optional zealous memory clearing to satisfy BGB exceptions. * Add doc comments to most subroutines. * lcd_*: Don't push HL so much. * Put global variables and the DMA routine's run address under SECTION control. * Try RSSET/RB to allocate local variables, nearly but not fully eliminating EQU allocation. * Display frame count and initial A, B contents at top. * Change frame count in vblank IRQ, and HALT until it changes. * Explicitly mark MMIO port and local variable accesses as LDH because RGBDS lacks a counterpart to ca65 .importzp. What is this, NESASM? [https://github.com/rednex/rgbds/issues/243 Ref]. * Add indentation correction to the build process. * Change padding value to $FF. * makefile: Add BGB as secondary emulator for "make debug". '''v0.01 2018/03/22''' * Initial release. == External links == * NesDev forums - https://forums.nesdev.org/viewtopic.php?t=17174

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