Differences

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--- inline_basic_assembler [2025/06/19 21:15] – [Writing a Program] reggie
+++ inline_basic_assembler [2025/06/20 10:17] (current) – [Dragon Basic Inline Assembler] reggie
@@ Line 1: / Line 1: @@
 ====== Dragon Basic Inline Assembler ======
-This utility (GTAsm) is intended for developing small 6809 machine language routines that enhance programs written mostly in Dragon Basic, for example a routine to scroll the graphics screen. The assembly source code is written in Basic comment statements.
+This utility (GTAsm) is intended for developing small 6809 machine language routines that enhance programs written mostly in Dragon Basic, for example a routine to scroll the graphics screen. The assembly source code is written in Basic comment statements. This documentation assumes a good working knowledge of the 6809 and the Dragon 32.
 [[https://6809.uk/cas/GTAsm.cas|Download GTAsm Inline Basic Assembler]] (as a .cas file for the Dragon 32 - get the [[https://www.6809.org.uk/xroar/|XRoar Emulator]])
@@ Line 59: / Line 59: @@
   LDA (CURSPOS)     load A from the address stored at CURSPOS
   LDB >$0034        load B from $0034 using extended mode rather than direct
-  CLR <LINELEN,Y    clr the byte at Y+LINELEN, forcing 8 bit offset mode
+  CLR <LINELEN,Y    clear the byte at Y+LINELEN, forcing 8 bit offset mode (doesn't work!)
 === Directives ===