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Implement almost all functionality

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Add keywords and identifiers
Add comments
Add number literals
Add strings
Add a lot of new tokens
Add (and clean up) IF etc.
Improve reporting of unexpected chars / garbage bytes
Fix bug with and improved error messages when failing to open file
Add verbose-level messages about how files are opened
Enforce that files finish with a newline
Fix chars returned not being cast to unsigned char (may conflict w/ EOF)
Return null path when no file is open, rather than crash
Unify and improve error printing slightly

Known to be missing: macro expansion, REPT blocks, EQUS expansions
This commit is contained in:
ISSOtm
2020-07-28 22:06:03 +02:00
parent 71f8871702
commit 4c9a929a14
12 changed files with 1139 additions and 235 deletions
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7
include/asm/symbol.h
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@@ -44,8 +44,8 @@ struct Symbol {
int32_t (*callback)(void);
};
struct { /* For SYM_MACRO */
uint32_t macroSize;
char *macro;
size_t macroSize;
char const *macro;
};
};
@@ -114,9 +114,10 @@ void sym_Export(char const *symName);
struct Symbol *sym_AddEqu(char const *symName, int32_t value);
struct Symbol *sym_AddSet(char const *symName, int32_t value);
uint32_t sym_GetPCValue(void);
uint32_t sym_GetConstantSymValue(struct Symbol const *sym);
uint32_t sym_GetConstantValue(char const *s);
struct Symbol *sym_FindSymbol(char const *symName);
struct Symbol *sym_AddMacro(char const *symName, int32_t defLineNo);
struct Symbol *sym_AddMacro(char const *symName, int32_t defLineNo, char const *body, size_t size);
struct Symbol *sym_Ref(char const *symName);
struct Symbol *sym_AddString(char const *symName, char const *value);
uint32_t sym_GetDefinedValue(char const *s);