fix some bug about double comma

Makefile

@@ -1,5 +1,5 @@
 CC = gcc
-CFLAGS = -Wall -Wextra -I.
+CFLAGS = -Wall -Wextra -I. -g
 SRC_ASSEMBLER = assembler.c
 SRC_ASM_PARSER = asm_parser.c
 OBJ_ASM_PARSER = asm_parser.o
@@ -15,6 +15,7 @@ asm_parser.o: $(SRC_ASM_PARSER)
 clean:
 	rm -f $(OBJ_ASM_PARSER)
 
+
 clobber: clean
 	rm -f $(TARGET)
 	rm -f *~

asm_parser.h

@@ -13,6 +13,7 @@
 #define ASM_PARSER_H
 
 #include <ctype.h>
+#include <stdint.h>
 
 #define ROWS 100
 #define COLS 255
@@ -27,10 +28,12 @@ int parse_div(char *instr, char *instr_bin_str);
 int parse_and(char *instr, char *instr_bin_str);
 int parse_or(char *instr, char *instr_bin_str);
 int parse_xor(char *instr, char *instr_bin_str);
-/* add additional helper functions to support other instructions */
+int parse_imm5(char *imm_str, int *imm_value);
 /* add additional helper functions to support other instructions */
 unsigned short int str_to_bin(char *instr_bin_str);
 int write_obj_file(char *filename, unsigned short int program_bin[ROWS], int instr_count);
 void int_to_bin_str(int num, int bits, char *bin_str);
 void to_uppercase(char *str);
+void trim(char *str);
+void write_uint16_big_endian(FILE *file, uint16_t value);
 #endif

assembler.c

@@ -37,13 +37,18 @@ int main(int argc, char **argv) {
       unsigned short int bin = str_to_bin(instr_bin_str);
       if (bin == 6) {  // Error code from str_to_bin
         printf("Error on line %d: %s\n", i + 1, line);
-        return i + 1;
+        return 6;
+      }
+      // if program_bin is full, return error
+      if (instr_count >= ROWS) {
+        printf("Error: Program too large\n");
+        return 0;
       }
       program_bin[instr_count] = bin;
       instr_count++;
     } else {
       printf("Error on line %d: %s\n", i + 1, line);
-      return i + 1;
+      return ret;
     }
     // ret == 0 means successful parsing
   }

test1.asm

@@ -1,7 +1 @@
-ADD R1, R0, R1
+ADD R1, R0 #5
-MUL R2, R1, R1
-SUB R3, R2, R1
-DIV R1, R3, R2
-AND R1, R2, R3
-OR R1, R3, R2
-XOR R1, R3, R2