Hi
I'm looking for the book
Assembler Routines for the 6502 (Best of Personal computer world)
ISBN 0-7126-0507-X
If someone has any information in abtaining this book, please post it here.
Thanks
Search found 2 matches
- Tue Mar 31, 2009 1:37 pm
- Forum: Programming
- Topic: Assembler Routines for the 6502
- Replies: 3
- Views: 3654
- Mon Jul 17, 2006 10:44 am
- Forum: General Discussions
- Topic: Page Crossing on Compare Absolute X
- Replies: 1
- Views: 2640
Page Crossing on Compare Absolute X
Hi
How does the Compare Absolute (DD) determine Page Crossing ?
FD07 CMP $8003,X
Where
Accumulator = $30
X Register = $05
Thus the Compared address will point to $8008 which = 0.
I've got a 6502 Simulator that adds an extra cycle because of a Page Crossing. Is this correct ? And if so why ...
How does the Compare Absolute (DD) determine Page Crossing ?
FD07 CMP $8003,X
Where
Accumulator = $30
X Register = $05
Thus the Compared address will point to $8008 which = 0.
I've got a 6502 Simulator that adds an extra cycle because of a Page Crossing. Is this correct ? And if so why ...