view lib/alib/is_alpha.a @ 2772:0a3f4d8ea6d5

Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected. Moved the native 6309 code in dwread.asm and dwwrite.asm into the H6309 labeled area and changed IFEQ H6309 to IFNE H6309. Also moved the 57600bps 6809 code to the default location. This change had been done in the old dwread.asm and dwwrite.asm files to make it easier to follow. Though these two files were overwritten from the HDBDOS project dwread.asm and dwwrite.asm files. So this conversion needed to be done again so it made the source easier to follow.
author drencor-xeen
date Wed, 23 Jan 2013 12:36:55 -0600
parents 7d70b7e1cb21
children aaba193af04f
line wrap: on
line source

*****************************************

* See if character in "B" is a alpha letter a..z or A..Z

* OTHER MODULES NEEDED: IS_LOWER, IS_UPPER

* ENTRY: B=character to test

* EXIT: CC zero=1 if alpha, 0 if not

 nam Is Char Alphabetic?
 ttl Assembler Library Module


 psect IS_ALPHA,0,0,0,0,0


IS_ALPHA:
 lbsr IS_UPPER
 BEQ yes uppercase letters are alpha
 lbsr IS_LOWER last chance to set flags.

yes
 rts


 endsect