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Fix potential memory access after free in lw_expr_simplify_go() Thanks to Erik Gavriluk (erik@bombfactory.com) for spotting a missing "else" when attempting to resolve a "special" reference. This could have led to access to memory that had already been freed if a "special" resolved to an expression that also referenced the same special (a circular reference). Whether that can actually happen is questionable but the check must have been added for a reason so it follows that it should be done correctly. This also brings the code in line with similar code resolving symbol references which makes a similar check.
author William Astle <lost@l-w.ca>
date Sat, 14 Mar 2015 14:06:13 -0600
parents b30091890d62
children
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>2.3. ASCII Hexadecimal</A
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>This human-readable ASCII hexadecimal format consists of CR+LF terminated 
lines of ASCII text. Each line has the following structure: a zero-padded 
four-digit ASCII hex address, a colon separator, and one or more zero-padded
two-digit hex values separated by commas. ASCII Hexadecimal format favors 
paragraph-aligned addresses (i.e. a least significant address nybble value
of zero). During output, the number of hex values on each line are adjusted
to align the address of the next line on a paragraph boundary. The sequence 
of addresses in the ASCII Hexadecimal file directly follows that of the source
file; multiple ORG directives in the source code may result in out-of-sequence
addresses in the ASCII Hexadecimal output.</P
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>LWASM can output this format since version 4.10.</P
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