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changeset 3090:3ccef1f7f44b

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Describe the non-standard format of the module header. Cross-reference os9.d to explain the layout of the offsets at the start of this module. Correct a comment error on the first entry in the table. Add comments to the nested ENDC structure to show what each ENDC matches, for clarity. Bit of white-space/tab tidyup.
author Neal Crook <foofoobedoo@gmail.com>
date Tue, 13 Oct 2015 22:38:26 +0100
parents 3244c2e1b6ed
children 4bd97bf42856
files level1/modules/init.asm
diffstat 1 files changed, 33 insertions(+), 19 deletions(-) [+]
line wrap: on
line diff
--- a/level1/modules/init.asm	Tue Oct 13 22:27:06 2015 +0100
+++ b/level1/modules/init.asm	Tue Oct 13 22:38:26 2015 +0100
@@ -44,13 +44,26 @@
 rev      set   $00
 edition  set   1
 
+*
+* Usually, the last two words here would be the module entry
+* address and the dynamic data size requirement. Neither value is
+* needed for this module so they are pressed into service to show
+* MaxMem and PollCnt. For example:
+* $0FE0,$0015 means
+* MaxMem = $0FE000
+* PollCnt = $0015
+*
          mod   eom,name,tylg,atrv,$0FE0,$0015
 
 ***** USER MODIFIABLE DEFINITIONS HERE *****
 
-* Init table
+*
+* refer to
+* "Configuration Module Entry Offsets"
+* in os9.d
+*
 start    equ   *
-         fcb   $27        number of IRQ polling entires
+         fcb   $27        entries in device table
          fdb   DefProg    offset to program to fork
          fdb   DefDev     offset to default disk device
          fdb   DefCons    offset to default console device
@@ -68,7 +81,7 @@
          fcb   $00        feature byte #2
          fdb   OSStr
          fdb   InstStr
-         fcb   0,0,0,0  reserved
+         fcb   0,0,0,0    reserved
 
          IFGT  Level-1
 * CC3IO section
@@ -91,7 +104,7 @@
 * messages !
 *
 
-	     IFEQ	dalpha
+         IFEQ  dalpha
 OSStr    equ   *
          fcc   "NitrOS-9/"
          IFNE  H6309
@@ -138,22 +151,23 @@
          fcc    "Atari XL/XE"
          ELSE
          fcc    "Unknown Machine"
-         ENDC
-         ENDC
-         ENDC
-         ENDC
-         ENDC
-         ENDC
-         ENDC
-         ENDC
-         ENDC
-         fcb   0
-		 ELSE
+         ENDC                             match IFNE atari
+         ENDC                             match IFNE dalpha
+         ENDC                             match IFNE d64
+         ENDC                             match IFNE tano
+         ENDC                             match IFNE coco3
+         ENDC                             match IFNE coco2b
+         ENDC                             match IFNE coco2
+         ENDC                             match IFNE delux
+         ENDC                             match IFNE coco1
+         fcb   0     null-terminate the name string
+         ELSE
+* DragonAlpha
 OSStr    equ   *
 InstStr  equ   *
-		 fcb	0
-		 ENDC
+         fcb   0     null-length string
+         ENDC                             match IFEQ dalpha
 
-         emod  
+         emod
 eom      equ   *
-         end   
+         end