Chequered Flag v1 and v2

General software. From trouble with the Banyan Tree to OCP Art Studio, post any general software chat here. Could include game challenges...
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spider
Dynamite Dan
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Chequered Flag v1 and v2

Post by spider »

Curious. ;) :)

Game page here for convenience

Does anyone know if there's any (real) difference between the two variants of this ? The English releases anyway, the Spanish language version is based on V2

Aside from in V2 the "main loop" as it were is sort of a lot higher up in memory and the different initial execution addresses, the code blocks are also quite a different size although some of that could be junk.

Its not a 're-release' (which is V2) 128K fix as V2 will still crash on the +2A/B and +3 if loaded in 128K mode, just go 'off road' as it calls a rom routine (as I recall)

Interestingly I only just noted there's a vague "anti hack" check on attributes with a "reset your speccy" if it does not like what it sees for attribute data in the lower screen area:

Code: Select all

LD HL, (23294)
LD A, H
XOR L
CP 6
JP NZ, 0
I half wonder if the original was first intended to be a 16K game perhaps with one car and a few less tracks. :?:

Any thoughts ?
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