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| author | David Phillips <david@sighup.nz> | 2019-04-14 19:27:09 +1200 |
|---|---|---|
| committer | David Phillips <david@sighup.nz> | 2019-08-03 12:43:46 +1200 |
| commit | e5eeded02a4abe2729e675203437c79d9ee71a7a (patch) | |
| tree | c4d5ce737a70b89a0ec33e7a1524d899765dcb0f /util.c | |
| parent | 36566268c9ead4a3d53730e66460a38a92820f3d (diff) | |
| download | toy-cpu-assembler-e5eeded02a4abe2729e675203437c79d9ee71a7a.tar.xz | |
emit_error -> emit, factor keywords out
Diffstat (limited to 'util.c')
| -rw-r--r-- | util.c | 20 |
1 files changed, 19 insertions, 1 deletions
@@ -5,6 +5,22 @@ #include "lex.h" /** + * Keywords + */ +static struct { + int look; + const char *str; +} keywords[] = { + { .look = 0, .str = "declare" }, + { .look = 0, .str = "byte" }, + { .look = 0, .str = "bytes" }, + { .look = 0, .str = "word" }, + { .look = 0, .str = "words" }, + { .look = 0, .str = "base" }, + { .str = NULL }, +}; + +/** * Human-readable descriptions for tokens */ static struct { @@ -117,7 +133,8 @@ int name(const char *x, type *res) { \ size_t i = 0; \ for (i = 0; lookup[i].str; i++) \ if (strcmp(lookup[i].str, x) == 0) { \ - *res = lookup[i].look; \ + if (res) \ + *res = lookup[i].look; \ return 0; \ } \ return 1; \ @@ -129,6 +146,7 @@ GENERATE_STR_LOOKUP_FUNC(get_asm_from_b, b_to_asm, enum JCOND); GENERATE_STR_LOOKUP_FUNC(get_asm_from_reg, reg_to_asm, enum REG); GENERATE_STR_LOOKUP_FUNC(get_token_description, token_to_desc, enum TOKEN_TYPE); +GENERATE_NUM_LOOKUP_FUNC(get_keyword, keywords, int); GENERATE_NUM_LOOKUP_FUNC(get_oper_from_asm, oper_to_asm, enum OPER); GENERATE_NUM_LOOKUP_FUNC(get_j_from_asm, j_to_asm, enum JCOND); GENERATE_NUM_LOOKUP_FUNC(get_b_from_asm, b_to_asm, enum JCOND); |