At 03:41 PM 8/19/01 -0700, Glenn Saunders wrote:
Team1Score ds 1
What does this syntax mean?
This is syntax supported by DASM for setting aside memory for
variables. Rather than explicitly giving an address for Team1Score, it is
just given an address beyond the end of the previous one.
So, given the following declarations, the comments give the memory
locations equivalent to the variable names:
org $80
Team1Score ds 1 ; $80
Team2Score ds 1 ; $80 + 1 = $81
Team1Tricks ds 1 ; $81 + 1 = $82
Team2Tricks ds 1 ; $82 + 1 = $83
SouthHand ds 5 ; $83 + 1 = $84
WestHand ds 5 ; $84 + 5 = $89
NorthHand ds 5 ; $89 + 5 = $8e
EastHand ds 5 ; $8e + 5 = $93
SouthCard ds 1 ; $93 + 5 = $98
I did this so I could shuffle around the order of variables without having
to manually assign new addresses. It's already come in handy once, as all
the north variables used to be first in the order rather than south's. It
will also help in implementing a variable overlay.
"ds" stands for "declare space".
. . \_ +\_ + o_-/ . O
. \-_o -=/- . .
. . \=// .
---------\_______ ||O ___.______
/* Erik Eid */ \____||L/\_____/
/* eeid@xxxxxxxxx */_______________________
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