First stab at removing cruft.

[rmac] / expr.c

diff --git a/expr.c b/expr.c
index 1747c8441666c4d79815b9b11dd20609d027dbf8..23f6a14afcbb0c46561c101b6d0e43e382acbb56 100644 (file)
--- a/expr.c
+++ b/expr.c
@@ -328,12 +328,17 @@ int expr2(void)
 //
 int expr(TOKEN * otk, VALUE * a_value, WORD * a_attr, SYM ** a_esym)
 {
 //
 int expr(TOKEN * otk, VALUE * a_value, WORD * a_attr, SYM ** a_esym)
 {

+       // Passed in values (once derefenced, that is) can all be zero. They are
+       // there so that the expression analyzer can fill them in as needed. The
+       // expression analyzer gets its input from "tok", and not from anything
+       // passed in by the user.

        SYM * sy;
        char * p;
        int j;
 
        SYM * sy;
        char * p;
        int j;
 

-       tk = otk;                                                               // Set token pointer to 'exprbuf' (direct.c)
-//     symbolNum = 0;                                                  // Set symbol number in symbolPtr[] to 0
+       tk = otk;                       // Set token pointer to 'exprbuf' (direct.c)
+                                               // Also set in various other places too (risca.c, e.g.)
+//     symbolNum = 0;          // Set symbol number in symbolPtr[] to 0

 
        // Optimize for single constant or single symbol.
        if ((tok[1] == EOL)
 
        // Optimize for single constant or single symbol.
        if ((tok[1] == EOL)