From c9b23b7b241fa4cb3aab1ca4436193c943ba46e9 Mon Sep 17 00:00:00 2001
From: Aryadev Chavali <aryadev@aryadevchavali.com>
Date: Sat, 21 Oct 2023 23:55:29 +0100
Subject: Implemented vm routines for OP_AND_*

---
 src/runtime.c | 30 ++++++++++++++++++++++++++++++
 src/runtime.h | 10 ++++++++++
 2 files changed, 40 insertions(+)

diff --git a/src/runtime.c b/src/runtime.c
index a57dc2f..d07f141 100644
--- a/src/runtime.c
+++ b/src/runtime.c
@@ -396,3 +396,33 @@ void vm_or_word(vm_t *vm)
   vm_push_word(vm, DWORD(a | b));
 }
 
+void vm_and_byte(vm_t *vm)
+{
+  if (vm->stack.ptr < 2)
+    // TODO: Error STACK_UNDERFLOW
+    return;
+  byte a = vm_pop_byte(vm).as_byte;
+  byte b = vm_pop_byte(vm).as_byte;
+  vm_push_byte(vm, DBYTE(a & b));
+}
+
+void vm_and_hword(vm_t *vm)
+{
+  if (vm->stack.ptr < (HWORD_SIZE * 2))
+    // TODO: Error STACK_UNDERFLOW
+    return;
+  hword a = vm_pop_hword(vm).as_hword;
+  hword b = vm_pop_hword(vm).as_hword;
+  vm_push_hword(vm, DHWORD(a & b));
+}
+
+void vm_and_word(vm_t *vm)
+{
+  if (vm->stack.ptr < (WORD_SIZE * 2))
+    // TODO: Error STACK_UNDERFLOW
+    return;
+  word a = vm_pop_word(vm).as_word;
+  word b = vm_pop_word(vm).as_word;
+  vm_push_word(vm, DWORD(a & b));
+}
+
diff --git a/src/runtime.h b/src/runtime.h
index d757e36..4ac475b 100644
--- a/src/runtime.h
+++ b/src/runtime.h
@@ -121,4 +121,14 @@ static const or_f OR_ROUTINES[] = {
     [OP_OR_WORD]  = vm_or_word,
 };
 
+void vm_and_byte(vm_t *);
+void vm_and_hword(vm_t *);
+void vm_and_word(vm_t *);
+typedef void (*and_f)(vm_t *);
+static const and_f AND_ROUTINES[] = {
+    [OP_AND_BYTE]  = vm_and_byte,
+    [OP_AND_HWORD] = vm_and_hword,
+    [OP_AND_WORD]  = vm_and_word,
+};
+
 #endif
-- 
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