INT E0 - ConcCP/M,DR Multiuser DOS - "Q_CWRITE" - CONDITIONALLY WRITE MSG QUEUE CL = 8Ch DS:DX -> queue parameter block (see INT E0/CL=87h) Return: AX = status 0000h success FFFFh failure CX = error code SeeAlso: INT E0/CL=8Ah,INT E0/CL=8Bh