Added lib folder for general stuff, introduced as target to Makefile

Makefile

@@ -10,29 +10,43 @@ TERM_GREEN:=$(shell echo -e "\e[0;32m")
 TERM_RESET:=$(shell echo -e "\e[0;0m")
 
 # Setup variables for source code, output, etc
+## Lib setup
+LIB_DIST=$(DIST)/lib
+LIB_SRC=lib
+LIB_CODE:=$(addprefix $(LIB_SRC)/, darr.c)
+LIB_OBJECTS:=$(LIB_CODE:$(LIB_SRC)/%.c=$(LIB_DIST)/%.o)
+LIB_DEPS:=$(LIB_OBJECTS:%.o=%.d)
+LIB_CFLAGS=$(CFLAGS)
+
+## VM setup
 VM_DIST=$(DIST)/vm
 VM_SRC=vm
-VM_CODE:=$(addprefix $(VM_SRC)/, darr.c inst.c runtime.c)
+VM_CODE:=$(addprefix $(VM_SRC)/, inst.c runtime.c)
 VM_OBJECTS:=$(VM_CODE:$(VM_SRC)/%.c=$(VM_DIST)/%.o)
 VM_DEPS:=$(VM_OBJECTS:%.o=%.d) $(VM_DIST)/fib.d $(VM_DIST)/main.d
 VM_VERBOSE=0
 VM_CFLAGS:=$(CFLAGS) -D VERBOSE=$(VM_VERBOSE)
+VM_OUT=$(DIST)/ovm.out
 
-VM_OUT=$(VM_DIST)/ovm.out
 
 # Things you want to build on `make`
-all: $(DIST) vm examples
+all: $(DIST) lib vm examples
+
+lib: $(LIB_DIST) $(LIB_OBJECTS)
 vm: $(VM_DIST) $(VM_OUT)
 examples: vm-examples
 vm-examples: $(VM_DIST) $(VM_DIST)/fib.out
 
 # Recipes
+## LIB Recipes
+-include $(LIB_DEPS)
 
-$(VM_OUT): $(VM_OBJECTS) $(VM_DIST)/main.o
+$(LIB_DIST)/%.o: $(LIB_SRC)/%.c
-	@$(CC) $(VM_CFLAGS) $^ -o $@ $(LIBS)
+	@$(CC) $(LIB_CFLAGS) -MMD -c $< -o $@ $(LIBS)
 	@echo -e "$(TERM_GREEN)$@$(TERM_RESET)"
 
-$(VM_DIST)/fib.out: $(VM_OBJECTS) $(VM_DIST)/fib.o
+## VM Recipes
+$(VM_OUT): $(LIB_OBJECTS) $(VM_OBJECTS) $(VM_DIST)/main.o
 	@$(CC) $(VM_CFLAGS) $^ -o $@ $(LIBS)
 	@echo -e "$(TERM_GREEN)$@$(TERM_RESET)"
 
@@ -56,5 +70,8 @@ clean:
 $(DIST):
 	mkdir -p $(DIST)
 
-$(VM_DIST): $(DIST)
+$(LIB_DIST):
+	mkdir -p $(LIB_DIST)
+
+$(VM_DIST):
 	mkdir -p $(VM_DIST)

vm/fib.c

@@ -1,79 +0,0 @@
-/* Copyright (C) 2023 Aryadev Chavali
-
- * You may distribute and modify this code under the terms of the GPLv2
- * license.  You should have received a copy of the GPLv2 license with
- * this file.  If not, please write to: aryadev@aryadevchavali.com.
-
- * Created: 2023-10-23
- * Author: Aryadev Chavali
- * Description: An example virtual machine program which computes and
- * prints fibonacci numbers.  Note that by default the virtual machine
- * just rolls overflows over, so this program will never terminate.
- */
-
-#include <assert.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "./inst.h"
-#include "./runtime.h"
-
-int main(void)
-{
-  inst_t instructions[] = {
-      // MOV the values 1 and 1 to REG[0] and REG[1] respectively
-      INST_PUSH(WORD, 1),
-      INST_MOV(WORD, 0),
-      INST_PUSH(WORD, 1),
-      INST_MOV(WORD, 1),
-
-      // Print value at register 0 with newline.
-      INST_PUSH_REG(WORD, 0), // <-- #
-      INST_PRINT(WORD),
-      INST_PUSH(BYTE, '\n'),
-      INST_PRINT(CHAR),
-
-      // Print value at register 1 with newline
-      INST_PUSH_REG(WORD, 1),
-      INST_PRINT(WORD),
-      INST_PUSH(BYTE, '\n'),
-      INST_PRINT(CHAR),
-
-      /* Compute the next pair of fibonacci numbers */
-      // REG[0] + REG[1]
-      INST_PUSH_REG(WORD, 0),
-      INST_PUSH_REG(WORD, 1),
-      INST_PLUS(WORD),
-
-      // Mov REG[0] + REG[1] to REG[0]
-      INST_MOV(WORD, 0),
-
-      // REG[0] + REG[1]
-      INST_PUSH_REG(WORD, 0),
-      INST_PUSH_REG(WORD, 1),
-      INST_PLUS(WORD),
-
-      // Mov REG[0] + REG[1] to REG[1]
-      INST_MOV(WORD, 1),
-
-      // Jump to the point #
-      INST_JUMP_ABS(4),
-      INST_HALT,
-  };
-
-  byte stack[256];
-  vm_t vm = {0};
-  vm_load_stack(&vm, stack, ARR_SIZE(stack));
-  vm_load_program(&vm, instructions, ARR_SIZE(instructions));
-  err_t err = vm_execute_all(&vm);
-
-  if (err)
-  {
-    const char *error_str = err_as_cstr(err);
-    fprintf(stderr, "[ERROR]: %s\n", error_str);
-    fprintf(stderr, "[ERROR]: VM Trace:\n");
-    vm_print_all(&vm, stderr);
-    return 255 - err;
-  }
-  return 0;
-}

vm/inst.h

@@ -16,8 +16,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "./base.h"
+#include "../lib/base.h"
-#include "./darr.h"
+#include "../lib/darr.h"
 
 typedef enum
 {

vm/runtime.h

@@ -16,7 +16,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "./base.h"
+#include "../lib/base.h"
 #include "./inst.h"
 
 typedef enum