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Register parameters
RST 20H, DEFW $7E09
IN: - OUT, if call successful: Fc = 0 BHL = first alarm block in list OUT, if call failed: Fc = 1 A = error code: RC_Fail, no existing alarm list Registers changed after return: ...CDE../IXIY same AFB...HL/.... different |
GN_Aab, allocate alarm block
GN_Alp, process an expired alarm (internal OZ usage)
GN_Lab, link an alarm block into the alarm chain
GN_Uab, unlink an alarm block from the alarm chain
OS_Alm, alarm manipulation (internal OZ usage)