INT 68 - APPC/PCIBM PC - SET TRACE DESTINATION AH = FEh AL = trace destinations (see #03708) DS:DX -> trace stats record if AL bit 0 set (see #03709) SeeAlso: AH=FCh,AH=FDh Bitfields for trace destinations: Bit(s) Description (Table 03708) 0 storage (DS:DX -> trace stats record) 1 display 2 file (trace written to file OUTPUT.PCIBM PC) 3 printer Format of APPC/PCIBM PC Trace Statistics Record: Offset Size Description (Table 03709) 00h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. pointer to storage trace buffer 04h WORD max number of 80-byte records in trace 06h WORD (high-order byte first!) current record number (must init to 0) 08h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. (high-order byte first!) number of records written (init to 0) 0Ch DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. reserved Note: do not move record while trace is active