IN: HL = 0, not allowed HL = 1, not allowed HL = 2, 3 byte internal time in ABC (A = high byte, C = low byte) HL > 255, HL points to 3 byte internal time (low byte first) E = least significant byte of assumed date OUT, if call successful: Fz = 0, if time is inconsistent with assumed date in E(in). Registers changed after return: ..BCDEHL/IXIY same AF....../.... different |
The time is used throughout the machine and should only be altered if the user of the machine is fully aware of the fact. Flow sequence:
Call probably crashes if HL points to segment 3.
GN_Gmt, get (read) machine time in internal format
GN_Gtm, convert an ASCII string to a time in internal format
GN_Msc, miscellaneous time operations
GN_Ptm, write internal time as ASCII string
GN_Pmd, Put (set) machine date
GN_Sdo, send date and time to standard output
OS_Dly, delay a given period