Register parameters
RST 20H, DEFB $72
IN:
-
OUT:
A = last error code
B = resumption cycle
C = dynamic id
IX = reserved
Fc = 0, always
Registers changed after return:
....DEHL/..IY same
AFBC..../IX.. different
Notes
Internal operating system usage. BC, IX are reserved for future use.
Related system calls
GN_Err, display an interactive error box
GN_Esp, return an extended pointer to a system error message
OS_Erh, set error handler
OS_Esc, examine special condition