more assembler stuff

src/assembler/assemble.h

@@ -1,3 +1,17 @@
 #pragma once
 
+#include "../instruction.h"
+
+typedef struct {
+    Instruction* at;
+    size_t len;
+    size_t capacity;
+} Program;
+
+Program newProgram(void);
+void addInstructionToProgram(Program* program, Instruction inst);
+void freeProgram(Program* program);
+
+Program createProgramFromText(const char* input);
+
 void assemble(const char* input, const char* outputFileName);