Claude 1c00d20121 runtime: reset PPU scroll after VRAM buffer drain ... Each $2006 write inside __vram_buf_drain updates the PPU's `t` (scroll) register, so leaving it pointing at the last buffer entry's address shifted the next frame's rendering up/right by however many cells we wrote past $2000. Reset by writing $00 to $2006 twice (clears `t` and resets the write-toggle to high) followed by $00 to $2005 twice (zero X/Y scroll). The HUD demo golden flips from "smileys offset by ~16px" to the intended red bar with white hearts and a yellow score digit. https://claude.ai/code/session_01F7dHsgh7UX7SAK3wZ7JiKc		2026-04-18 22:57:46 +00:00
..
arrays_and_functions.audio.hash
arrays_and_functions.png
audio_demo.audio.hash
audio_demo.png
auto_chr_background.audio.hash
auto_chr_background.png
auto_sprite_flicker.audio.hash	compiler: GNROM / debug port / sprite flicker / fade / sprite-0 split + docs	2026-04-18 19:31:55 +00:00
auto_sprite_flicker.png	compiler: GNROM / debug port / sprite flicker / fade / sprite-0 split + docs	2026-04-18 19:31:55 +00:00
axrom_simple.audio.hash	compiler: PRNG / edge input / palette fade / AxROM / CNROM / FCEUX labels	2026-04-18 18:13:18 +00:00
axrom_simple.png	compiler: PRNG / edge input / palette fade / AxROM / CNROM / FCEUX labels	2026-04-18 18:13:18 +00:00
bitwise_ops.audio.hash
bitwise_ops.png
bouncing_ball.audio.hash
bouncing_ball.png
cnrom_simple.audio.hash	compiler: PRNG / edge input / palette fade / AxROM / CNROM / FCEUX labels	2026-04-18 18:13:18 +00:00
cnrom_simple.png	compiler: PRNG / edge input / palette fade / AxROM / CNROM / FCEUX labels	2026-04-18 18:13:18 +00:00
coin_cavern.audio.hash
coin_cavern.png
comparisons.audio.hash
comparisons.png
edge_input_demo.audio.hash	compiler: PRNG / edge input / palette fade / AxROM / CNROM / FCEUX labels	2026-04-18 18:13:18 +00:00
edge_input_demo.png	compiler: PRNG / edge input / palette fade / AxROM / CNROM / FCEUX labels	2026-04-18 18:13:18 +00:00
fade_demo.audio.hash	compiler: GNROM / debug port / sprite flicker / fade / sprite-0 split + docs	2026-04-18 19:31:55 +00:00
fade_demo.png	compiler: GNROM / debug port / sprite flicker / fade / sprite-0 split + docs	2026-04-18 19:31:55 +00:00
feature_canary.audio.hash
feature_canary.png
friendly_assets.audio.hash
friendly_assets.png
function_chain.audio.hash
function_chain.png
gnrom_simple.audio.hash	compiler: GNROM / debug port / sprite flicker / fade / sprite-0 split + docs	2026-04-18 19:31:55 +00:00
gnrom_simple.png	compiler: GNROM / debug port / sprite flicker / fade / sprite-0 split + docs	2026-04-18 19:31:55 +00:00
hello_sprite.audio.hash
hello_sprite.png
hud_demo.audio.hash	docs + example: HUD demo and language-guide VRAM buffer section	2026-04-18 21:34:44 +00:00
hud_demo.png	runtime: reset PPU scroll after VRAM buffer drain	2026-04-18 22:57:46 +00:00
i16_demo.audio.hash	compiler: i16 / SRAM saves / inline-asm dot labels / docs	2026-04-18 20:49:06 +00:00
i16_demo.png	compiler: i16 / SRAM saves / inline-asm dot labels / docs	2026-04-18 20:49:06 +00:00
inline_asm_demo.audio.hash
inline_asm_demo.png
logic_ops.audio.hash
logic_ops.png
loop_break_continue.audio.hash
loop_break_continue.png
match_demo.audio.hash
match_demo.png
metasprite_demo.audio.hash
metasprite_demo.png
mmc1_banked.audio.hash
mmc1_banked.png
mmc3_per_state_split.audio.hash
mmc3_per_state_split.png
nested_structs.audio.hash
nested_structs.png
noise_triangle_sfx.audio.hash
noise_triangle_sfx.png
palette_and_background.audio.hash
palette_and_background.png
palette_brightness_demo.audio.hash	compiler: PRNG / edge input / palette fade / AxROM / CNROM / FCEUX labels	2026-04-18 18:13:18 +00:00
palette_brightness_demo.png	compiler: PRNG / edge input / palette fade / AxROM / CNROM / FCEUX labels	2026-04-18 18:13:18 +00:00
platformer.audio.hash
platformer.png
pong.audio.hash
pong.png
prng_demo.audio.hash	compiler: PRNG / edge input / palette fade / AxROM / CNROM / FCEUX labels	2026-04-18 18:13:18 +00:00
prng_demo.png	review: tighten PRNG / void-intrinsic / FCEUX path handling	2026-04-18 18:48:55 +00:00
scanline_split.audio.hash
scanline_split.png
sfx_pitch_envelope.audio.hash
sfx_pitch_envelope.png
sha256.audio.hash
sha256.png
sprite_0_split_demo.audio.hash	compiler: GNROM / debug port / sprite flicker / fade / sprite-0 split + docs	2026-04-18 19:31:55 +00:00
sprite_0_split_demo.png	compiler: GNROM / debug port / sprite flicker / fade / sprite-0 split + docs	2026-04-18 19:31:55 +00:00
sprite_flicker_demo.audio.hash
sprite_flicker_demo.png
sprites_and_palettes.audio.hash
sprites_and_palettes.png
sram_demo.audio.hash	compiler: i16 / SRAM saves / inline-asm dot labels / docs	2026-04-18 20:49:06 +00:00
sram_demo.png	compiler: i16 / SRAM saves / inline-asm dot labels / docs	2026-04-18 20:49:06 +00:00
state_machine.audio.hash
state_machine.png
structs_enums_for.audio.hash
structs_enums_for.png
two_player.audio.hash
two_player.png
uxrom_banked.audio.hash
uxrom_banked.png
uxrom_banked_to_banked.audio.hash
uxrom_banked_to_banked.png
uxrom_user_banked.audio.hash
uxrom_user_banked.png
vram_buffer_demo.audio.hash	compiler: VRAM update buffer (nt_set / nt_attr / nt_fill_h)	2026-04-18 21:14:31 +00:00
vram_buffer_demo.png	runtime: reset PPU scroll after VRAM buffer drain	2026-04-18 22:57:46 +00:00
war.audio.hash
war.png