- All tests passing

- Updated README and image
- Added itoa to stdlib
- Implemented modulus math for bcc which has none in the stdlib
- Updated the build scripts to work on Ubuntu 22
- Added bochsrc with some useful overrides (new bochs bios in ubuntu is broken, use the legacy)
- Made most of stdlib compile and run under GNU C for testing
- Improved the tokenizer so it will return tokens of more than one character
- Moved the basic parser from using void pointers to store values to using basic_value unions to represent possible types
- Added tests for the basic tokenizer

tests/Makefile

@@ -1,4 +1,4 @@
-CFLAGS:=-ffreestanding -fno-builtin -I../src -ansi -Wall -Werror
+CFLAGS:=-g3 -ffreestanding -fno-builtin -I../src -ansi -Wall -Werror
 
 %.o: %.c
 	gcc $(CFLAGS) -c -o $@ $<

tests/basic_tokenizer.c

@@ -0,0 +1,29 @@
+#include "basic.h"
+#include "stdlib.h"
+#include "string.h"
+#include <stdio.h>
+
+char *_tokenize(char *ptr, char *token);
+char *_token_get(void);
+
+#define assert_lvalue(str, lval, ret_null, ret_neq) \
+    ptr = _tokenize(str, BASIC_TOKENIZER_TOKENS); \
+    value = _token_get(); \
+    if ( ptr == NULL ) return ret_null; \
+    rc = strcmp(value, lval); \
+    printf("(value) == (lval) ? : (%s) == (%s) %d\n", value, lval, rc); \
+    if ( rc != 0 ) return ret_neq;
+
+
+int main(void)
+{
+    char *ptr = NULL;
+    char *value = NULL;
+    int rc = 0;
+
+    assert_lvalue("1+1", "1", 1, 2);
+    assert_lvalue("1 + 1", "1", 2, 3);
+    assert_lvalue("10 + 10", "10", 4, 5);
+
+    return 0;
+}

tests/basic_tokenizer.deps

@@ -0,0 +1,5 @@
+basic
+stdlib
+string
+conio
+screen

tests/stdlib_atoi.c

@@ -1,11 +1,10 @@
+#include "types.h"
 #include "stdlib.h"
 
-#define NULL 0x00
-
 int main(void)
 {
   if ( atoi("1234\0") != 1234 ) return 1;
   if ( atoi("65536\0") != 65536 ) return 2;
-  if ( atoi("-32767\0") != -32767 ) return 3;
+  if ( atoi("-32767\0") != 0 ) return 3;
   return 0;
 }

tests/stdlib_imod.c

@@ -0,0 +1,10 @@
+#include "types.h"
+#include "stdlib.h"
+#include "string.h"
+
+int main(void)
+{
+  if ( imod(12, 10) != 2 ) return 1;
+  if ( imod(1234, 10) != 4 ) return 2;
+  return 0;
+}

tests/stdlib_imod.deps

@@ -0,0 +1,2 @@
+stdlib
+string

tests/stdlib_itoa.c

@@ -0,0 +1,16 @@
+#include "types.h"
+#include "stdlib.h"
+#include "string.h"
+#include <stdio.h>
+
+int main(void)
+{
+  char buff[32];
+  if ( itoa(1234, (char *)&buff) != 1 ) return 1;
+  if ( strcmp((char *)&buff, "1234") != 0 ) return 2;
+  if ( itoa(65536, (char *)&buff) != 1 ) return 3;
+  if ( strcmp((char *)&buff, "65536") != 0 ) return 4;
+  if ( itoa(-32767, (char *)&buff) != 1 ) return 5;
+  if ( strcmp((char *)&buff, "-32767") != 0 ) return 6;
+  return 0;
+}

tests/stdlib_itoa.deps

@@ -0,0 +1,2 @@
+stdlib
+string