Apple IIe - Page 258

258 Apple lie Users Handbook
To replicate AA BB CC DD from 1000 to 103F, enter the
following:
*1004< 1000.103BM
*1000.103F
1000-AA
BB
cc
DD AA BB cc DD
1008-AA
BB cc DD AA BB cc DD
1010- AA
BB cc DD AA BB cc DD
1018- AA BB cc
DD AA BB
cc DD
1020- AA
BB cc DD AA BB cc DD
1028- AA BB cc
DD AA BB
cc
DD
1030- AA
BB cc DD AA BB
cc
DD
1038- AA
BB
cc
DD AA BB cc DD
Verify can be used in a similar manner to determine whether a
pattern repeats itself in memory. For example , to determine if
the pattern in the preceding example does indeed exist in
memory, type the following .
*1004< 1000.103BV
This
command is useful in evaluating whether an area of memory
has been set to a certain value. First clear page-20.
*2000:0
*
2001 < 2000 . 20F EM
Next , change the following two locations.
*2040:
47
*2080: FF
Finally, check page-20.
*2001 < 2000.20FEV
203F- 00 (47)
2040- 47 (00)
207F-
00 (FF)
2080- FF (00)