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Tag: crtc
26 items with this tag.
16 May 2026
6845 CRTC — Advanced
video
crtc
6845
sheila
raster
performance
16 May 2026
6845 CRTC
video
crtc
6845
sheila
16 May 2026
6845 CRTC Internal Counters (C0/C4/C9/C5)
crtc
6845
internal-state
c0
c4
c9
c5
vma
last-line
additional-management
16 May 2026
ACCC — The Amstrad CPC CRTC Compendium (v1.7)
crtc
6845
reference
rupture
cpc
internal-counters
c0
c4
c9
c5
vma
vsync
hsync
16 May 2026
Retrosoftware — Smooth Vertical Scrolling
crtc
scrolling
vertical-rupture
raster
smooth-scroll
mode-2
16 May 2026
Twisted Brain — Bitshifters demo write-up
demo
crtc
raster
vertical-rupture
single-rasterline
kefrens
twister
parallax
copper
smooth-scroll
16 May 2026
Checkerboard Zoom (ULA flash-bit toggle per raster)
crtc
single-rasterline
ula
flash
mode-1
checkerboard
animation
16 May 2026
Copper Bars / Plasma
crtc
vertical-rupture
single-scanline
mode-0
palette
dither
sine
copper
plasma
16 May 2026
CRTC Counter Freeze (R0=0)
crtc
r0
freeze
counters
experimental
raster
c9
c4
16 May 2026
Kefrens Bars (single-scanline beam race)
crtc
single-rasterline
beam-race
kefrens
alcatraz
mode-1
sine
16 May 2026
Parallax Bars (64-row buffer via mid-frame ACCCON switch)
crtc
single-rasterline
parallax
mode-1
shadow-ram
acccon
dither
16 May 2026
Raster Splits (overview)
raster
crtc
video-ula
palette
mode-split
vertical-rupture
single-rasterline
16 May 2026
RVI (per-line C9 selection via R0=1 micro-cycles)
crtc
rupture
rvi
r0
c9
single-scanline
last-line
hsync
16 May 2026
Single-Rasterline Vertical Rupture
crtc
vertical-rupture
raster
single-scanline
beam-race
demo
16 May 2026
Smooth Vertical Scrolling (1-scanline granularity)
crtc
scrolling
raster
vertical-rupture
mode-2
smooth-scroll
16 May 2026
Triggered VSync (R7=C4 mid-line)
crtc
vsync
r7
raster
mid-line
blocked-vsync
16 May 2026
Twister (narrow-screen via R1 + 128 prerendered rotations)
crtc
single-rasterline
mode-1
twister
sine
r1
r2
narrow-screen
dither
16 May 2026
Vertical Blinds (double-buffered 160-byte mini-frame)
crtc
single-rasterline
vertical-rupture
mode-2
double-buffer
sine
stipple
16 May 2026
Vertical Rupture (CRTC split-screen)
crtc
raster
split-screen
scrolling
mode-2
14 May 2026
BeebWiki: Address translation
memory
dram
address-translation
crtc
video
scrolling
14 May 2026
BeebWiki: CRTC
video
crtc
6845
14 May 2026
Hitachi HD6845R/HD6845S Datasheet
crtc
6845
hitachi
datasheet
video
13 May 2026
NAUG Ch13 — Video/Graphics System
video
crtc
6845
video-ula
palette
scrolling
modes
13 May 2026
"MODE 8" — 16-colour low-frequency mode
custom-mode
mode-8
16-colour
low-frequency
crtc
video-ula
13 May 2026
Custom Screen Modes
crtc
video-ula
modes
screen-memory
13 May 2026
Hardware Scrolling
scrolling
crtc
raster
vsync