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Add support for multiple charmaps

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This adds two new directives: newcharmap and setcharmap.
newcharmap creates a new charmap and switches to it.
setcharmap switches to an existing charmap.
This commit is contained in:
dbrotz
2019-08-29 21:54:06 -07:00
parent 12d82eb768
commit e05199ca1e
17 changed files with 395 additions and 33 deletions
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16
src/asm/symbol.c
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@@ -22,6 +22,7 @@
#include "asm/main.h"
#include "asm/mymath.h"
#include "asm/output.h"
#include "asm/util.h"
#include "extern/err.h"
@@ -90,16 +91,11 @@ static int32_t getvaluefield(struct sSymbol *sym)
}
/*
* Calculate the hash value for a string
* Calculate the hash value for a symbol name
*/
uint32_t calchash(char *s)
uint32_t sym_CalcHash(const char *s)
{
uint32_t hash = 5381;
while (*s != 0)
hash = (hash * 33) ^ (*s++);
return hash % HASHSIZE;
return calchash(s) % HASHSIZE;
}
/*
@@ -123,7 +119,7 @@ struct sSymbol *createsymbol(char *s)
struct sSymbol **ppsym;
uint32_t hash;
hash = calchash(s);
hash = sym_CalcHash(s);
ppsym = &(tHashedSymbols[hash]);
while ((*ppsym) != NULL)
@@ -187,7 +183,7 @@ struct sSymbol **findpsymbol(char *s, struct sSymbol *scope)
s);
}
hash = calchash(s);
hash = sym_CalcHash(s);
ppsym = &(tHashedSymbols[hash]);
while ((*ppsym) != NULL) {