From 3ef1ef33577b2616564ad52d41e0bb23ea869612 Mon Sep 17 00:00:00 2001
From: Christian Groessler <chris@groessler.org>
Date: Wed, 16 Oct 2013 17:55:45 +0200
Subject: [PATCH] comment and formatting fixes

---
 libsrc/atari/romswitch.inc        |  4 ++--
 libsrc/atari/shadow_ram_prepare.s | 10 ++++++----
 libsrc/atari/system_check.s       |  7 +++----
 3 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/libsrc/atari/romswitch.inc b/libsrc/atari/romswitch.inc
index 7169f2b39..ed4cd96d8 100644
--- a/libsrc/atari/romswitch.inc
+++ b/libsrc/atari/romswitch.inc
@@ -28,7 +28,7 @@
         sta     CHBASE
 .endmacro
 
-.else
+.else   ; above CHARGEN_RELOC, below not
 
 .macro  set_chbase val
 .endmacro
@@ -42,7 +42,7 @@
         sta     WSYNC
 .endmacro
 
-.else   ; above 
+.else   ; above USEWSYNC, below not
 
 .macro  wsync
 .endmacro
diff --git a/libsrc/atari/shadow_ram_prepare.s b/libsrc/atari/shadow_ram_prepare.s
index a08aa8cfe..76fae2f45 100644
--- a/libsrc/atari/shadow_ram_prepare.s
+++ b/libsrc/atari/shadow_ram_prepare.s
@@ -55,6 +55,8 @@ cont:   ldx     #0              ; channel 0
 
 .segment        "SRPREP"
 
+; ***** entry point *****
+
 sramprep:
 .ifdef DEBUG
         print_string "entering stage #2"
@@ -115,7 +117,7 @@ sramprep:
 iocbok:
 .endif
 
-        ; Reopen it in Graphics 0
+        ; reopen it in Graphics 0
         lda     #OPEN
         sta     ICCOM,x
         lda     #OPNIN | OPNOT
@@ -212,8 +214,8 @@ cg_addr_ok2:
 
 ; switch to temporary chargen
 
-        sta CHBASE
-        sta CHBAS
+        sta     CHBASE
+        sta     CHBAS
 
 ; copy shadow RAM contents to their destination (segment SHADOW_RAM)
 
@@ -245,7 +247,7 @@ no_copy:
         lda     #<__SHADOW_RAM2_SIZE__
         bne     do_copy2
         lda     #>__SHADOW_RAM2_SIZE__
-        beq     no_copy2                ; we have no shadow RAM contents
+        beq     no_copy2                ; we have no shadow RAM #2 contents
 
         ; ptr1 - src; ptr2 - dest; tmp1, tmp2 - len
 do_copy2:
diff --git a/libsrc/atari/system_check.s b/libsrc/atari/system_check.s
index 84573c84a..ef544ef6f 100644
--- a/libsrc/atari/system_check.s
+++ b/libsrc/atari/system_check.s
@@ -7,8 +7,8 @@
 ; and that enough memory is installed (which isn't the case for a 600XL).
 ; For the non-XL target it checks whether there is enough memory
 ; installed to run the program.
-; For both target it checks that the program won't load below MEMLO.
-; If one of the checks fails the loading of the main program
+; For both targets it checks that the program won't load below MEMLO.
+; If one of the checks fails, the loading of the main program
 ; is aborted by jumping to DOSVEC.
 ;
 ; Christian Groessler, chris@groessler.org, 2013
@@ -46,8 +46,8 @@ cont:   ldx     #0              ; channel 0
         sta     ICCOM,x
         jsr     CIOV_org
 .endmacro
-.macro print_string2 addr, len
 
+.macro print_string2 addr, len
         ldx     #0              ; channel 0
         lda     #<addr
         sta     ICBAL,x         ; address
@@ -60,7 +60,6 @@ cont:   ldx     #0              ; channel 0
         lda     #PUTCHR
         sta     ICCOM,x
         jsr     CIOV_org
-
 .endmacro