From dacb9c71e87f9c0900de72af11ad887293decebf Mon Sep 17 00:00:00 2001
From: Rekai Musuka <rekai@musuka.dev>
Date: Thu, 29 Jun 2023 23:12:08 -0500
Subject: [PATCH] feat: implement debug i/o in Bus Interface

---
 src/lib.zig | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/src/lib.zig b/src/lib.zig
index cd73a37..f5ce9c7 100644
--- a/src/lib.zig
+++ b/src/lib.zig
@@ -45,6 +45,14 @@ pub const Bus = struct {
         write16: *const fn (ptr: *anyopaque, address: u32, value: u16) void,
         write32: *const fn (ptr: *anyopaque, address: u32, value: u32) void,
 
+        dbg_read8: *const fn (ptr: *anyopaque, address: u32) u8,
+        dbg_read16: *const fn (ptr: *anyopaque, address: u32) u16,
+        dbg_read32: *const fn (ptr: *anyopaque, address: u32) u32,
+
+        dbg_write8: *const fn (ptr: *anyopaque, address: u32, value: u8) void,
+        dbg_write16: *const fn (ptr: *anyopaque, address: u32, value: u16) void,
+        dbg_write32: *const fn (ptr: *anyopaque, address: u32, value: u32) void,
+
         reset: *const fn (ptr: *anyopaque) void,
     };
 
@@ -89,6 +97,36 @@ pub const Bus = struct {
                 self.write(u32, address, value);
             }
 
+            fn dbgRead8(ptr: *anyopaque, address: u32) u8 {
+                const self = @ptrCast(P, @alignCast(alignment, ptr));
+                return self.dbgRead(u8, address);
+            }
+
+            fn dbgRead16(ptr: *anyopaque, address: u32) u16 {
+                const self = @ptrCast(P, @alignCast(alignment, ptr));
+                return self.dbgRead(u16, address);
+            }
+
+            fn dbgRead32(ptr: *anyopaque, address: u32) u32 {
+                const self = @ptrCast(P, @alignCast(alignment, ptr));
+                return self.dbgRead(u32, address);
+            }
+
+            fn dbgWrite8(ptr: *anyopaque, address: u32, value: u8) void {
+                const self = @ptrCast(P, @alignCast(alignment, ptr));
+                self.dbgWrite(u8, address, value);
+            }
+
+            fn dbgWrite16(ptr: *anyopaque, address: u32, value: u16) void {
+                const self = @ptrCast(P, @alignCast(alignment, ptr));
+                self.dbgWrite(u16, address, value);
+            }
+
+            fn dbgWrite32(ptr: *anyopaque, address: u32, value: u32) void {
+                const self = @ptrCast(P, @alignCast(alignment, ptr));
+                self.dbgWrite(u32, address, value);
+            }
+
             fn reset(ptr: *anyopaque) void {
                 const self = @ptrCast(P, @alignCast(alignment, ptr));
                 self.reset();
@@ -106,6 +144,14 @@ pub const Bus = struct {
                 .write16 = impl.write16,
                 .write32 = impl.write32,
 
+                .dbg_read8 = impl.dbgRead8,
+                .dbg_read16 = impl.dbgRead16,
+                .dbg_read32 = impl.dbgRead32,
+
+                .dbg_write8 = impl.dbgWrite8,
+                .dbg_write16 = impl.dbgWrite16,
+                .dbg_write32 = impl.dbgWrite32,
+
                 .reset = impl.reset,
             },
         };