1 files changed, 35 insertions, 0 deletions
diff --git a/src/vm/wasm.zig b/src/vm/wasm.zig
new file mode 100644
index 0000000..579309b
--- /dev/null
+++ b/src/vm/wasm.zig
@@ -0,0 +1,35 @@
+const vm = @import("vm.zig");
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+
+pub const Type = enum(u8) {
+    i32 = 0x7f,
+    i64 = 0x7e,
+    f32 = 0x7d,
+    f64 = 0x7c,
+    v128 = 0x7b,
+};
+
+pub const GlobalRuntime = struct {
+    functions: std.StringHashMap(*const fn (stack: *std.ArrayList(vm.Value)) void),
+
+    pub fn init(allocator: Allocator) GlobalRuntime {
+        return GlobalRuntime{
+            .functions = std.StringHashMap(*const fn (stack: *std.ArrayList(vm.Value)) void).init(allocator),
+        };
+    }
+
+    pub fn deinit(self: *GlobalRuntime) void {
+        self.functions.deinit();
+    }
+
+    pub fn addFunction(self: *GlobalRuntime, name: []const u8, function: *const fn (stack: *std.ArrayList(vm.Value)) void) !void {
+        try self.functions.put(name, function);
+    }
+};
+
+pub fn debug(stack: *std.ArrayList(vm.Value)) void {
+    const a = stack.pop().?;
+
+    std.debug.print("{}\n", .{a.i32});
+}