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Implement unionized sections in RGBASM

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This touched a lot more code than initially expected, for two reasons.

First, this broke a big RGBASM assumption: that sections are always being
written to at their end. This plus other problems required touching
basically the entirety of `section.c`.

Second, I tried different solutions to solve the above problem, and along
the way I cleaned up many things around. (I believe that keeping this to
"cleanup" commits yields subpar results, and since it's boring they get
postponed anyways.)

RGBLINK support still needs to be added, but this will come next.
This commit is contained in:
ISSOtm
2020-03-20 21:02:32 +01:00
parent 46a402f7d7
commit cb52ae0f26
13 changed files with 314 additions and 162 deletions
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7
src/asm/main.c
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@@ -40,11 +40,13 @@ const size_t cldefine_entrysize = 2 * sizeof(void *);
char **cldefines;
clock_t nStartClock, nEndClock;
int32_t nLineNo;
uint32_t nTotalLines, nPC, nIFDepth, nUnionDepth;
uint32_t nTotalLines, nIFDepth, nUnionDepth;
bool skipElif;
uint32_t unionStart[128], unionSize[128];
int32_t nLineNo;
uint32_t curOffset;
#if defined(YYDEBUG) && YYDEBUG
extern int yydebug;
#endif
@@ -525,7 +527,6 @@ int main(int argc, char *argv[])
nIFDepth = 0;
skipElif = true;
nUnionDepth = 0;
nPC = 0;
sym_Init();
sym_SetExportAll(CurrentOptions.exportall);
fstk_Init(tzMainfile);