Editing File Formats (section)

== PGZ (more details) ==

(More Complete Explanation ) - To be Re-Edited to form only one clear explanation of what the PGZ file format does. (This is the explanation coming from wiki.c256foenix.com)

PGZ is a multi-segment file format that can load data into multiple areas in memory. The format is derived from binary format used by Western Design Center's C compiler.

* The first byte of the PGZ format is the ASCII code for "Z". This serves as the file type signature.
<span style="color:red">* Big "Z" = 24bits Addresse Pointers and Sizes. Small "z" = 32bits Addresse Pointers and Sizes.</span>
* Next comes any number of segments, each following right after the previous segment with no separator. Each segment has the following format:
** Three bytes of address, in little endian format. This is the starting address for writing the data of the segment.
** Three bytes indicating the size of the segment, in little endian format.
** The bytes of data in the segment (same number of bytes as specified in the size).
* If final segment has a size of $000000 and no data bytes, then address specifies the starting address of the executable.

{| class="wikitable"
! Segment !! Offset !! Count !! Example !! Purpose
|-
| N/A || 0 || 1 || "Z" || Signature
|-
|rowspan="3"| 1 || 1 || 3 || $010000 || Address of segment #1
|-
| 4 || 3 || $000009 || Size of segment #1
|-
| 7 || ... || ... || Data of Segment #1
|-
|rowspan="3"| 2 || 16 || 3 || $020000 || Address of segment #2
|-
| 19 || 3 || $000008 || Size of segment #2
|-
| 22 || ... || ... || Data of Segment #2
|-
|rowspan="2"| 3 || 30 || 3 || $010000 || Starting address
|-
| 33 || 3 || $000000 || 0 to indicate start address
|}