Search by property

This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.

List of results

• Joystick I/O Mode  + (Joystick port I/O control)
• Kempston Joystick 2, Joystick I/O  + (Kempston interface second joystick variant and controls joystick I/O.)
• NMI Return Address LSB  + (LSB of NMI return address)
• Layer 2 Control Register  + (Layer 2 resolution, palette offset)
• Display Control 1 Register  + (Layer2, ULA shadow, Timex $FF port)
• LoRes Control Register  + (LoRes Radastan mode)
• Keymap Low Data Register  + (Low eight LSBs of PS/2 Keymap data.)
• NMI Return Address MSB  + (MSB of NMI return address)
• Expansion Bus I/O Propagate Register  + (Monitoring internal I/O or adding external keyboard)
• Peripheral 5 Register  + (Multiface type, Divmmc automap, Mouse buttons and DPI config)
• Sprite port-mirror Attribute 4 Register  + (Nextreg port-mirror to write directly into "byte 5" of [[:Sprite Attribute Upload|Sprite Attribute Upload]] ($xx57 / 87).)
• Sprite port-mirror Attribute 1 Register  + (Nextreg port-mirror to write directly into "byte 2" of [[:Sprite Attribute Upload|Sprite Attribute Upload]] ($xx57 / 87).)
• Sprite port-mirror Attribute 0 Register  + (Nextreg port-mirror to write directly into "byte 1" of [[:Sprite Attribute Upload|Sprite Attribute Upload]] ($xx57 / 87).)
• Sprite port-mirror Attribute 2 Register  + (Nextreg port-mirror to write directly into "byte 3" of [[:Sprite Attribute Upload|Sprite Attribute Upload]] ($xx57 / 87).)
• Sprite port-mirror Attribute 3 Register  + (Nextreg port-mirror to write directly into "byte 4" of [[:Sprite Attribute Upload|Sprite Attribute Upload]] ($xx57 / 87).)
• Vertical Video Line Offset Register  + (Offset numbering of raster lines in copper/interrupt/active register)
• SpecDrum DAC Output  + (Output to SpecDrum DAC.)
• Keymap Low Address Register  + (PS/2 Keymap address LSB.)
• Keymap High Address Register  + (PS/2 Keymap address MSB, read (pending) first byte of palette colour)
• Pentagon 1024 paging  + (Paging in Pentagon 1024K mode)
• Pi I2S Audio Control Register  + (Pi I2S controls)
• LoRes X Offset Register  + (Pixel X offset (0..255) to use when drawing LoRes Layer.)
• ULA X Offset Register  + (Pixel X offset (0..255) to use when drawing ULA Layer.)
• LoRes Y Offset Register  + (Pixel Y offset (0..191) to use when drawing LoRes Layer.)
• ULA Y Offset Register  + (Pixel Y offset (0..191) to use when drawing ULA Layer.)
• Next Memory Bank Select  + (Provides additional bank select bits for extended memory.)

• Extended Keys 0 Register  + (Read Next keyboard compound keys separately)
• Extended Keys 1 Register  + (Read Next keyboard compound keys separately)

• Extended MD Pad Buttons  + (Reading additional buttons on MD pads)
• TBBlue Register Access  + (Reads and/or writes the selected TBBlue control register.)
• Kempston Mouse Buttons  + (Reads buttons on Kempston Mouse.)
• UART RX  + (Reads data from serial port, write sets the baudrate)
• Kempston Joystick  + (Reads movement of joysticks using Kempston interface.)
• Sprite port-mirror Attribute 0 (with INC) Register  + (Same as [[:Sprite port-mirror Attribute 0 Register|Sprite port-mirror Attribute 0 Register]] ($35) (write first byte of sprite-attributes), plus increments [[:Sprite port-mirror Index Register|Sprite port-mirror Index Register]] ($34))
• Sprite port-mirror Attribute 3 (with INC) Register  + (Same as [[:Sprite port-mirror Attribute 3 Register|Sprite port-mirror Attribute 3 Register]] ($38) (write fourth byte of sprite-attributes), plus increments [[:Sprite port-mirror Index Register|Sprite port-mirror Index Register]] ($34))
• Sprite port-mirror Attribute 1 (with INC) Register  + (Same as [[:Sprite port-mirror Attribute 1 Register|Sprite port-mirror Attribute 1 Register]] ($36) (write second byte of sprite-attributes), plus increments [[:Sprite port-mirror Index Register|Sprite port-mirror Index Register]] ($34))
• Sprite port-mirror Attribute 2 (with INC) Register  + (Same as [[:Sprite port-mirror Attribute 2 Register|Sprite port-mirror Attribute 2 Register]] ($37) (write third byte of sprite-attributes), plus increments [[:Sprite port-mirror Index Register|Sprite port-mirror Index Register]] ($34))
• Memory Mapping Mode  + (Select memory mapping mode)
• Memory Paging Control  + (Selects active RAM, ROM, and displayed screen.)
• TBBlue Register Select  + (Selects active port for TBBlue/Next feature configuration.)
• Sprite port-mirror Index Register  + (Selects sprite index 0..127 to be affected by writes to other Sprite ports (and mirrors).)
• Memory management slot 0 bank  + (Selects the 8k-bank stored in 8k-slot 0 (see [[Memory map]]).)
• Memory management slot 1 bank  + (Selects the 8k-bank stored in 8k-slot 1 (see [[Memory map]]).)
• Memory management slot 2 bank  + (Selects the 8k-bank stored in 8k-slot 2 (see [[Memory map]]).)
• Memory management slot 3 bank  + (Selects the 8k-bank stored in 8k-slot 3 (see [[Memory map]]).)
• Memory management slot 4 bank  + (Selects the 8k-bank stored in 8k-slot 4 (see [[Memory map]]).)
• Memory management slot 5 bank  + (Selects the 8k-bank stored in 8k-slot 5 (see [[Memory map]]).)
• Memory management slot 6 bank  + (Selects the 8k-bank stored in 8k-slot 6 (see [[Memory map]]).)
• Memory management slot 7 bank  + (Selects the 8k-bank stored in 8k-slot 7 (see [[Memory map]]).)
• UART TX  + (Sends byte to serial port. If read, tells if data in RX buffer)
• Keyboard  + (Series of specific ports that read keyboard key presses.)
• CPU Speed Register  + (Sets [[CPU Speed control|CPU Speed]], reads actual speed.)