Devpac

• Get the 3.18 ADF from TOSEC or here
• Mount the ADF
• Copy the Devpac directory to your hard drive
• Edit S:User-Startup:

; BEGIN Devpac
ASSIGN DevPac: <where you installed devpac>
ASSIGN C: DevPac: ADD 
; END Devpac

• https://archive.org/details/DevPacV3.00.Manual

• One source file to Amiga binary: genam src.asm ⇒ src

If you have more than one file, you'll probably want to use sc link with an smakefile:

snippet.asm

; main.asm
  XDEF _main
 
_main:
  MOVEQ #0,D0
  RTS

# smakefile
MAIN_OBJS = $(main.o)

.asm.o:
  genam -l $*.asm
  
main: $(MAIN_OBJS)
  sc link to main $(MAIN_OBJS)

Though this seems to make programs undebuggable in MonAm now? PhxAss seems better, but it's likely best if you just use GenAm on a single asm file.

• Remember INCDIR!