From b2713b5bbc6b018f48c8f4954568c5e8dbc0a20e Mon Sep 17 00:00:00 2001
From: Shem Sedrick <ssedrick1@gmail.com>
Date: Tue, 21 May 2024 13:03:49 -0500
Subject: [PATCH] Debugging issue with mem_grow call missing

---
 build.zig        | 2 +-
 src/vm_stack.zig | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/build.zig b/build.zig
index bac76db..9fcd83f 100644
--- a/build.zig
+++ b/build.zig
@@ -98,7 +98,7 @@ pub fn build(b: *Build) void {
         compile_memtest.addArg("-Wl,--export-dynamic");
         compile_memtest.addArg("-o");
         compile_memtest.addArg("test/mem64/memtest.wasm");
-        compile_memtest.addFileArg(.{ .path = "test/mem64/memtest.c" });
+        compile_memtest.addFileArg(b.path("test/mem64/memtest.c"));
         compile_memtest.has_side_effects = true;
 
         b.getInstallStep().dependOn(&compile_memtest.step);
diff --git a/src/vm_stack.zig b/src/vm_stack.zig
index 9c957d8..154cea6 100644
--- a/src/vm_stack.zig
+++ b/src/vm_stack.zig
@@ -854,6 +854,7 @@ const InstructionFuncs = struct {
     };
 
     fn run(pc: u32, code: [*]const Instruction, stack: *Stack) anyerror!void {
+        std.debug.print("Running code {any}\n", .{code[pc]});
         try @call(.always_tail, InstructionFuncs.lookup(code[pc].opcode), .{ pc, code, stack });
     }
 
@@ -2101,6 +2102,8 @@ const InstructionFuncs = struct {
             else => unreachable,
         };
 
+        std.debug.print("Growing from {} to {}", .{ old_num_pages, num_pages });
+
         if (num_pages >= 0 and memory_instance.grow(@as(usize, @intCast(num_pages)))) {
             stack.pushI32(old_num_pages);
             try @call(.always_tail, InstructionFuncs.lookup(code[pc + 1].opcode), .{ pc + 1, code, stack });