Version analysis of swine - Elite on the BBC Micro and NES

This code appears in the following versions (click to see it in the source code):

Cassette and Electron

Code variations between these versions are shown below.

       Name: swine
       Type: Subroutine
   Category: Copy protection
    Summary: Resets the machine if the copy protection detects a problem


.swine

Code variation 1 of 1Specific to an individual platform

This variation is blank in the Electron version.

Cassette
 LDA #%01111111         \ Set 6522 System VIA interrupt enable register IER
 STA &FE4E              \ (SHEILA &4E) bits 0-6 (i.e. disable all hardware
                        \ interrupts from the System VIA)

 JMP (&FFFC)            \ Jump to the address in &FFFC to reset the machine