Morbidelli 1991 U26 Tria Post

I am having trouble just creating a basic post for the morbidelli u26. Its files are the .pgm I understand how to convert them problem is the post processor I use doesnt make the programs correctly. I have attached a simple 10 inch by 10 inch work piece with 5 inch circle cut in the middle as of how I would write it on the machine. Any one able to make a simple post that can do this exact same thing without adding all the other stuff to a program
H is the header
DX is max length DY is max width and DZ is max thickness
g0 starts router
g1 moves to next point
g2 clockwise arc
g3 counter-clockwise arc
uses an I and a J to calculate the arc
v is the feed rate
s is the spindle speed
t is the tool
AB is the field its ran on
DEF is the tool data stored on the machine
this machine has a set zero for x and y top left corner is always 0,0 or vice vs. for a mirror on other field DC (top right corner)
does not need any rapid traverse codes its built into the machine basically when a program comes to an end it stops and basically just moves the z back to a safe z but no special code for that doesnt need any special commands for safe z's

Any help would be awesome looks like it should be simple as compared to some of the other posts.

anyone have a program that will convert the xxl file or txt file to .pgm I keep getting unknown line 1

I am looking for the same... Please share, thanks.

https://www.youtube.com/watch?v=73vCldoRh1Q
Alphacam post processor - https://www.cnc.info.pl/alphacam-f118.html

For Tria 6000/4000 you cannot put "=" in code
and spindle speed "S" written as S16, not S16000
example

incorrect notation
H DX = 10.0000 DY = 10.0000 DZ = 0.7500 -AB /DEF
C1
G0 X = 5.0000 Y = 5.0000 Z = 0.7500 V2 S16000 T44
G1 Y = 2.5000 V2
G2 X = 5.0000 Y = 2.5000 I = 5.0000 J = 5.0000

correct notation

H DX10.0000 DY10.0000 DZ0.7500 -AB /DEF
C1
G0 X5.0000 Y5.0000 Z0.7500 V2 S16 T44
G1 Y2.5000 V2
G2 X5.0000 Y2.5000 I5.0000 J5.0000

otherwise, the conversion program "CNVRT.exe" will report an error