CBM510 update

git-svn-id: svn://svn.cc65.org/cc65/trunk@955 b7a2c559-68d2-44c3-8de9-860c34a00d81

diff --git a/doc/internal.txt b/doc/internal.txt
index a5f69b08670e4aa75758873171c1d167560568fe..9cfb40450faa27fefefd7b036a1d99a64ae7faca 100644 (file)
--- a/doc/internal.txt
+++ b/doc/internal.txt
@@ -110,8 +110,8 @@ compiling them into assembler.  Therefore if you have a C function named
 Systems:
 --------
 
-Supported systems at this time are: C64, C128, Plus/4, CBM 500, CBM 600/700, 
-the newer PET machines (not 2001), Atari 8bit, and the Apple ][ (thanks to 
+Supported systems at this time are: C64, C128, Plus/4, CBM 500, CBM 600/700,
+the newer PET machines (not 2001), Atari 8bit, and the Apple ][ (thanks to
 Kevin Ruland, who did the port).
 
 C64:   The program runs in a memory configuration, where only the kernal ROM
@@ -128,10 +128,10 @@ Plus/4:   Unfortunately, the Plus/4 is not able to disable only part of it's
        free memory is reduced to 12K).
 
 CBM 500:
-       The C program runs in bank #0 and has about 61K memory available. The
-       memory available on the CBM5x0 is slightly less than that available
-       on its bigger brothers (CBM 600/700) because the video ram is also
-       placed into bank #0 to allow sprites.
+       The C program runs in bank #0 and has a total of 48K memory available. 
+       This is less than what is available on its bigger brothers (CBM 
+       600/700) because the character data and video RAM is placed in the
+       execution bank (#0) to allow the use of sprites.
 
 CBM 600/700:
        The C program runs in a separate segment and has almost full 64K of