Register parameters
RST 20H, DEFW $3009
IN:
A = character to classify
OUT:
F = flags indicate classification, as follows:
Fc = 0, Fz = 0: Neither alphabetic or numeric
Fc = 0, Fz = 1: Numeric ('0' ... '9')
Fc = 1, Fz = 0: Upper case letter ('A' ... 'Z')
Fc = 1, Fz = 1: Lower case letter ('a' ... 'z')
Registers changed after return:
A.BCDEHL/IXIY same
.F....../.... differentÂ
Related calls
GN_Skc, skip character
GN_Skd, skip delimiters
GN_Skt, skip to value