Specify entry point in main

[mike632t]

It is probably simpler to simpler to specify the code entry point in main rather than 'mess about' with ASEG and /P directives (there are I suspect perfectly good reasons for using these directives it you want code to burn into a ROM but I've always let the linker just do its' thing).

main.asm

;------------------------------------------------------------------------
; 
;  CAL utility
;
;  main.asm 
;
;  Copyright (c)2021 Kevin Boone, GPL v3.0
;
;------------------------------------------------------------------------

        .Z80

;       ASEG
;       ORG    0100H

        include CONIO.INC
        include CLARGS.INC
        include INTMATH.INC
        include DATE.INC
        include STRING.INC
        include ROMWBW.INC

        .request conio
        .request clargs 
        .request intmath 
        .request date 
        .request string 
        .request romwbw 
        .request mem 

;       JP      main

rtcse:  ; sec
        db 0

end 	main

Makefile

$(TARGET): conio.rel main.rel intmath.rel string.rel mem.rel clargs.rel date.rel romwbw.rel
	$(CPM) $(LINK80) main,$(NAME)/n/e

The result should be an executable that starts with a jump to the entry point...

0100 C37C01C3 7C01E521 1A03CDE3 0321D502  .|..|..!.....!..
0110 CDE303E1 C9E52145 03CDE303 E1C9D5CD  ......!E........
0120 0308B7CA 73027BB7 CA7302FE 0DD27302  ....s.{..s....s.

I'm not sure if the month should be indented but it seems to work..

cpm cal 8 2023 /s
August 2023
Su Mo Tu We Th Fr Sa
       1  2  3  4  5 
 6  7  8  9 10 11 12 
13 14 15 16 17 18 19 
20 21 22 23 24 25 26 
27 28 29 30 31