From 740627b12dc33aec2753363a3f5bebf10db07cb5 Mon Sep 17 00:00:00 2001
From: Aryadev Chavali <aryadev@aryadevchavali.com>
Date: Wed, 1 Nov 2023 22:56:40 +0000
Subject: Implemented MALLOC_STACK and SUB in the assembler

---
 asm/lexer.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'asm/lexer.c')

diff --git a/asm/lexer.c b/asm/lexer.c
index dfc4976..0a8a97e 100644
--- a/asm/lexer.c
+++ b/asm/lexer.c
@@ -44,6 +44,8 @@ const char *token_type_as_cstr(token_type_t type)
     return "DUP";
   case TOKEN_MALLOC:
     return "MALLOC";
+  case TOKEN_MALLOC_STACK:
+    return "MALLOC_STACK";
   case TOKEN_MSET:
     return "MSET";
   case TOKEN_MSET_STACK:
@@ -76,6 +78,8 @@ const char *token_type_as_cstr(token_type_t type)
     return "GTE";
   case TOKEN_PLUS:
     return "PLUS";
+  case TOKEN_SUB:
+    return "SUB";
   case TOKEN_MULT:
     return "MULT";
   case TOKEN_PRINT:
@@ -131,7 +135,7 @@ bool is_valid_hex_char(char c)
 
 token_t tokenise_symbol(buffer_t *buffer, size_t *column)
 {
-  static_assert(NUMBER_OF_OPCODES == 90, "tokenise_buffer: Out of date!");
+  static_assert(NUMBER_OF_OPCODES == 96, "tokenise_buffer: Out of date!");
 
   size_t sym_size = 0;
   for (; sym_size < space_left(buffer) &&
@@ -182,6 +186,11 @@ token_t tokenise_symbol(buffer_t *buffer, size_t *column)
     offset = 3;
     type   = TOKEN_DUP;
   }
+  else if (sym_size >= 12 && strncmp(opcode, "MALLOC.STACK", 12) == 0)
+  {
+    offset = 12;
+    type   = TOKEN_MALLOC_STACK;
+  }
   else if (sym_size >= 6 && strncmp(opcode, "MALLOC", 6) == 0)
   {
     offset = 6;
@@ -262,6 +271,11 @@ token_t tokenise_symbol(buffer_t *buffer, size_t *column)
     offset = 2;
     type   = TOKEN_GT;
   }
+  else if (sym_size >= 3 && strncmp(opcode, "SUB", 3) == 0)
+  {
+    offset = 3;
+    type   = TOKEN_SUB;
+  }
   else if (sym_size >= 4 && strncmp(opcode, "PLUS", 4) == 0)
   {
     offset = 4;
-- 
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