LinkZ is a fast and powerful replacement linker for QP/M and CP/M systems from MICROCode Consulting.  Written in Z-80 assembler language for small size and quick execution, features of LinkZ include:

• one-pass operation runs 3X faster than Link-80
• generate executable file (.COM), hex file (.HEX), and/or SID/ZSID/DCON/DebugZ compatible symbol table (.SYM)
• RAM-based linkage with .COM file sizes 8k larger than Link-80
• accepts symbol tables for overlays
• number of COMMON areas only limited by available memory
• set global labels directly from the keyboard
• supports math operations on external symbols
• accepts drive and user designators on files using ":" or ";" aka QP/M
• extensions such as listing undefined symbols and immediate program execution

LinkZ was the first of what was intended to be a complete development package called Z.  Other intended tools were MacroZ and LibZ, but these latter tools were never completed.  (Not much chance they ever will be now.)

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Downloads

Package	Version	Date	Size (bytes)	Download time (28.8K baud)	Click to download
LinkZ software for QP/M and CP/M	1.2	Sep 1984	6016	3sec	lz.com
LinkZ documentation	1.2	Aug 1986	196k	1min 11sec	linkz.pdf
LinkZ software + documentation	1.2	Aug 1986	137k	49sec	linkz.zip

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Installation

Install the software package entails moving LZ.COM onto your CP/M or QP/M system to some drive/user area, likely drive A, user 0 as this is operating system area where you would want LinkZ located.

This is restricted for personal use software that is provided without any warranty whatsoever as described in the legacy Z-80 home page.
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¹SASI is a hardware and software standard that uses a bi-directional parallel interface and employs a pre-defined protocol for communication with mass storage devices (such as as hard drive controller).  SASI is the natural predecessor to the SCSI interface.