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BBC Micro Elite

Drawing pixels: PBZE (6502SP version)

       Name: PBZE                                              [View in context]
       Type: Subroutine
   Category: Drawing pixels
    Summary: Reset the pixel buffer



.PBZE

 LDA #2                 \ Set PBUP = 2 to reset the pixel buffer (as the size in
 STA PBUP               \ PBUP includes the two OSWORD size bytes)

 RTS                    \ Return from the subroutine