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Correct bug in the object file output code leading to stack corruption It turns out leaving a pointer to a stack allocated temporary in a persistent data structure is not conducive to correct program operation. Undo the export check setup in the object file output sequence so a pointer to stack allocated memory is not left hanging when the function returns. This seems to correct at least one mysterious crash bug, and possibly others. Thanks to Boisy Pitre for reporting the crash bug that led to this discovery, as well as a previous crash bug that likely has the same root cause. Additional thanks to Ciaran Anscomb whose debugger wielding wizardry revealed the exact location of this particular bit of unbrilliance.
author William Astle <lost@l-w.ca>
date Sat, 03 Aug 2024 14:30:06 -0600
parents b30091890d62
children
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>2.2. DECB Binaries</A
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>A DECB binary is compatible with the LOADM command in Disk Extended
Color Basic on the CoCo. They are also compatible with CLOADM from Extended
Color Basic. These binaries include the load address of the binary as well
as encoding an execution address. These binaries may contain multiple loadable
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>Each binary starts with a preamble. Each preamble is five bytes long. The
first byte is zero. The next two bytes specify the number of bytes to load
and the last two bytes specify the address to load the bytes at. Then, a
string of bytes follows. After this string of bytes, there may be another
preamble or a postamble. A postamble is also five bytes in length. The first
byte of the postamble is $FF, the next two are zero, and the last two are
the execution address for the binary.</P
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>Both LWASM and LWLINK can output this format.</P
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