SFRpoke

assembling

use Waterbear assembler https://github.com/wtetzner/waterbear, and then making sure that SFR.i, SFRpoke.s and SFRpoke_DCicon.gif are all in the same folder type the following on your command line app of preference waterbear assemble SFRpoke.s -o SFRpoke.vms

controls

per-mode controls, you can tell what mode you're on if you can see a little dot cursor showing up

On SFR select mode (no cursor)

• Dpad right and left: adjust the indicated SFR's lower nibble
• Dpad up and down: adjust the indicated SFR's upper nibble
• SLEEP: go to Bit edit mode

On Bit edit mode (cursor showing up)

• Dpad right and left: toggle bit
• Dpad up and down: select bit
• SLEEP: go to SFR select mode

common controls - these do the same function regardless of whether you're selecting bits or selecting SFR

• A: Write 'W' column to the indicated SFR in the top right corner
• B: Read the indicated SFR in the top right corner and store the result into the 'R' column
• MODE: toggles between the app's own modes, see below

app modes

• SFR: pokes hardware registers
• XRAM: pokes the whole screen memory at the first 2 banks of XBNK (0 and 1)
• ICON: pokes the last 2 banks of XBNK (2 and 3)
• EXIT: goes back to the BIOS when pressing A

NOTICE

SFR.I is taken from https://github.com/jahan-addison/snake

Version log

• 1.0 - initial version
• 1.1 - reworked UI and rewrote the entire code from the ground up, now supports XRAM and ICON pokes
• 1.2 - fixed a bug where poking PSW and C broke the program, changed fonts and added an animated icon visible on your dreamcast file manager or Elysian VMU file manager
• 1.3 - fixed player inputs in general, keys now no longer re-trigger if you are holding another one and there is no bouncing errors when setting the system to 1MHz or 500KHz clock rates