From 50ce1b35cd1ce5e93f90c43b0657dced380d89fa Mon Sep 17 00:00:00 2001
From: Aryadev Chavali <aryadev@aryadevchavali.com>
Date: Sat, 21 Oct 2023 23:55:41 +0100
Subject: Implemented vm routines for OP_XOR_*
---
src/runtime.c | 30 ++++++++++++++++++++++++++++++
src/runtime.h | 10 ++++++++++
2 files changed, 40 insertions(+)
diff --git a/src/runtime.c b/src/runtime.c
index d07f141..19115b6 100644
--- a/src/runtime.c
+++ b/src/runtime.c
@@ -426,3 +426,33 @@ void vm_and_word(vm_t *vm)
vm_push_word(vm, DWORD(a & b));
}
+void vm_xor_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_xor_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_xor_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 4ac475b..ea4edb9 100644
--- a/src/runtime.h
+++ b/src/runtime.h
@@ -131,4 +131,14 @@ static const and_f AND_ROUTINES[] = {
[OP_AND_WORD] = vm_and_word,
};
+void vm_xor_byte(vm_t *);
+void vm_xor_hword(vm_t *);
+void vm_xor_word(vm_t *);
+typedef void (*xor_f)(vm_t *);
+static const xor_f XOR_ROUTINES[] = {
+ [OP_XOR_BYTE] = vm_xor_byte,
+ [OP_XOR_HWORD] = vm_xor_hword,
+ [OP_XOR_WORD] = vm_xor_word,
+};
+
#endif
--
cgit v1.2.3-13-gbd6f