I'm a noob at assembly and with RadAsm 1.97 as well. In my attempts to follow the The Art of Assembly (CHM) I ran into an apparent typo error, on line 16, as shown below.
1. Listing 2-7: Unsigned I/O
2. program UnsExample;
3. #include( "stdlib.hhf" )
4. static
5. UnsValue: uns16;
6. begin UnsExample;
7. stdout.put( "Enter an integer between 32,768 and 65,535: " );
8. stdin.getu16();
9. mov( ax, UnsValue );
10. stdout.put
11. (
12. "You entered ",
13. UnsValue,
14. ". If you treat this as a signed integer, it is "
15. );
16. stdout.put.geti16( UnsValue );
17. stdout.newln();
18. end UnsExample;
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D:\RadASM2211\hla\Projects\UnsExample>hla unsexample
Error in file "UnsExample.hla" at line 19 [errid:107619/hlaparse.c]:
syntax error, unexpected '.', expecting '('.
Near: << . >>
Error in file "UnsExample.hla" at line 19 [errid:61530/hlaparse.bsn]:
Expected ':', encountered '('
(Possible undefined ID 'geti16').
Near: << ( >>
UnsExample.hla [78]:
error: undefined symbol.
-------------------------------------------------------------------------
If I change line 16 to: stdout.put( ax, UnsValue );
I get:
• Enter an integer between 32,768 and 65,535: 1024
• You entered 1024. If you treat this as a signed integer, it is 04001024
If I change line 16 to: stdout.put( UnsValue );
I get:
• Enter an integer between 32,768 and 65,535: 1024
• You entered 1024. If you treat this as a signed integer, it is 1024
It is difficult enough learning this stuff without runnig into errors right at the start. In most instances I find the book extremely enlightening but errors throw off the ability to concentrate.
I can only assume that my corrections to the code were the intentions of the author.
Am I correct in this assumption? :eek
Thank you
I don't think they are intentional errors, however the online versions of AoA are no longer maintained/updated. Such errors are more rare in the published version of AoA.
That shouldn't cause too much trouble since there are these forums to sort out any problems you encounter.