initial mips32 (r2000ish mips32r6) assembler

1 files changed, 49 insertions, 0 deletions

diff --git a/masm/strtbl.c b/masm/strtbl.c
new file mode 100644
index 0000000..b01bb92
--- /dev/null
+++ b/masm/strtbl.c
@@ -0,0 +1,49 @@
+#include <merror.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "asm.h"
+
+int strtbl_get_str(struct str_table *str_tbl, const char *str, size_t *res)
+{
+        for (size_t i = 0; i < str_tbl->size; i ++) {
+                if (strcmp(str_tbl->ptr + i, str) == 0) {
+                        if (res != NULL)
+                                *res = i;
+                        return M_SUCCESS;
+                }
+        }
+
+        return M_ERROR;
+}
+
+int strtbl_write_str(struct str_table *str_tbl, const char *str, size_t *res)
+{
+        if (strtbl_get_str(str_tbl, str, res) == M_SUCCESS)
+                return M_SUCCESS;
+
+        size_t len = strlen(str);
+        char *new = realloc(str_tbl->ptr, str_tbl->size + len + 1);
+        if (new == NULL)
+                return M_ERROR;
+        str_tbl->ptr = new;
+        memcpy(str_tbl->ptr + str_tbl->size, str, len + 1);
+
+        if (res != NULL)
+                *res = str_tbl->size;
+
+        str_tbl->size += len + 1;
+        return M_SUCCESS;
+}
+
+void strtbl_init(struct str_table *str_tbl)
+{
+        str_tbl->size = 1;
+        str_tbl->ptr = malloc(1);
+        *str_tbl->ptr = '\0';
+}
+
+void strtbl_free(struct str_table *str_tbl)
+{
+        free(str_tbl->ptr);
+}