 Nathaniel Walizer
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713ad8f45f
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Actually add SDL audio source and blip_buf link
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11 months ago |
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Nathaniel Walizer
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d217db42a4
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Add SDL audio; complete DMC channel
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11 months ago |
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Nathaniel Walizer
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58abae105f
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Add gamepad support
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11 months ago |
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Nathaniel Walizer
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4cdf2839b3
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Add UxROM mapper (Castlevania, Mega Man)
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11 months ago |
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Nathaniel Walizer
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dcae99a332
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Start implementing APU
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11 months ago |
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Nathaniel Walizer
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f0d45e9680
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Use single-step CPU call for 17% performance boost
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11 months ago |
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Nathaniel Walizer
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07486046c2
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Clean up PPU and SDL render modules
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11 months ago |
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Nathaniel Walizer
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10a2599afa
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Move scroll increment to PPU module
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11 months ago |
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Nathaniel Walizer
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5d352fc5c5
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Fix sprite priority (visible in SMB3 powerups and Piranha Plants)
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11 months ago |
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Nathaniel Walizer
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35bef4d20b
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Fix split Y scrolling
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11 months ago |
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Nathaniel Walizer
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1bac8d515c
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Add support for left background column mask
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11 months ago |
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Nathaniel Walizer
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464fe79ebd
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Render each scanline at a time; MMC3 mapper fixup; debug output fixup
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11 months ago |
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Nathaniel Walizer
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98acb09236
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Fix up MMC3 ROM banks
- Gun-Nac working great
- Kirby menus are garbage
- SMB3 overworld sprites are garbage
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1 year ago |
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Nathaniel Walizer
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7507dc30f8
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Add IRQ to MMC3 mapper
- Gun Nac still crashing after first title screen
- SMB3 halts after game start
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1 year ago |
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Nathaniel Walizer
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d68d566a49
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Add ROM portion of MMC3 mapper
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1 year ago |
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Nathaniel Walizer
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be47688d35
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Add CNROM mapper; Fix up CHR ROM writes; Fix collision offset
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1 year ago |
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Nathaniel Walizer
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18455ad76c
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Add MMC1 mapper support
- Scrolling jitter artifacts evident in The Legend of Zelda
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1 year ago |
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Nathaniel Walizer
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d094413864
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Move VRAM mapping into mapper
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1 year ago |
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Nathaniel Walizer
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bfb9e3df5f
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Add basic mapper support
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1 year ago |
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Nathaniel Walizer
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36ad6f4e19
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Add 8x16 sprite support; create debug macros
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1 year ago |
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Nathaniel Walizer
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d162c0c414
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Clean up old CPU debug
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1 year ago |
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Nathaniel Walizer
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66460ee5fe
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Add horizontal/vertical VRAM mirroring
- Ready to add support for mappers
- Block-line background rendering presents certain artifacts in some
vertical-scrolling games like 1942
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1 year ago |
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Nathaniel Walizer
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5160cfa44f
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Add vertical scrolling
- Still some lingering issues with vertical page mapping
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1 year ago |
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Nathaniel Walizer
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dd98891c60
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Fix collision check bounds
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1 year ago |
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Nathaniel Walizer
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57fcc77c27
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Add controller support with keyboard via SDL
- a -> A
- s -> B
- q -> Select
- w -> Start
- Arrow keys
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1 year ago |
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Nathaniel Walizer
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2f07024354
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Finish smooth X scrolling
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1 year ago |
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Nathaniel Walizer
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1a0f6ac06e
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Add basic coarse X scrolling
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1 year ago |
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Nathaniel Walizer
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ee6127cdf6
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Fix basic background rendering
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1 year ago |
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Nathaniel Walizer
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889e8526bd
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Enforce realtime rendering
- Master clock cycles are truncated to nanoseconds, but this should
be within tolerance of actual hardware implementations
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1 year ago |
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Nathaniel Walizer
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3b3f8bd6f6
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Add mirroring support to sprite rendering
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1 year ago |
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Nathaniel Walizer
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41536a2b8f
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Fix PPU timing
- DMA was being double-counted for PPU cycles
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1 year ago |
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Nathaniel Walizer
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4f46423e6d
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Flesh out PPU rendering by using LUTs
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1 year ago |
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Nathaniel Walizer
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0078a19a9e
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Baby's first background
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1 year ago |
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Nathaniel Walizer
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787bd6b739
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Add skeleton SDL renderer for PPU
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1 year ago |
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Nathaniel Walizer
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8410cd184a
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Finish PPU memory mapping
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1 year ago |
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Nathaniel Walizer
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13456ff79a
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Initial commit: Everything in progress, with PPU R/W support nearly complete
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1 year ago |
