Indirect indexed addressing error

[mjwurtz]

instruction LDA [-1,X] (hex code A698FF) is translated by LDA [$FF,X], which is interpreted (at least by a09) as a 16 bits positive number and produce A69900FF :

0003 A69900FF LDA [$FF,X] ;0003: A6 98 FF '...'

The correct translation should be either LDA [-1,X] either LDA [<$99,X]
This is the case for all instruction with this addressing mode (JMP [-1,Y], etc.)

[mjwurtz]

I had a quick look at the code. Maybe this change is enough to correct the problem ?

diff --git a/f9dasm.c b/f9dasm.c
index 0700d60..a115be5 100644
--- a/f9dasm.c
+++ b/f9dasm.c
@@ -2155,7 +2155,7 @@ if (T & 0x80)
     case 0x18:
       T = ARGBYTE(PC);
       PC++;
-      sprintf(buf,"[%s,%c]",
+      sprintf(buf,"[<%s,%c]",
               number_string(T, 2, (word)(PC - 1)),
               R);
       break;

[Arakula]

I'll add the following change to the next version instead:

    case 0x18:
      {
      signed char c = (signed char)ARGBYTE(PC);
      PC++;
      sprintf(buf,"[%s,%c]",
              signed_string(c, 2, (word)(PC - 1)),
              R);
      }
      break;

That should do it nicely, as it's always a signed value.
The "signed char" might be an overspecification, but who knows what compiler options are used ...
Sorry that it took so long, I'm just too busy with other tasks at the moment.

[Arakula]

OK, V1.83 is online now that should fix this.