From e04a151d498daf53b8e2d8159b36da5cf726702d Mon Sep 17 00:00:00 2001
From: Logan McNaughton <848146+loganmc10@users.noreply.github.com>
Date: Sat, 15 Feb 2025 08:29:37 +0100
Subject: [PATCH] set DPC_PIPEBUSY_REG (#253)

* set DPC_PIPEBUSY_REG

* revert hidden rdram change

* more
---
 parallel-rdp/interface.cpp | 2 +-
 src/device/rdp.rs          | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/parallel-rdp/interface.cpp b/parallel-rdp/interface.cpp
index a44c5a07..39eb6ff9 100644
--- a/parallel-rdp/interface.cpp
+++ b/parallel-rdp/interface.cpp
@@ -183,7 +183,7 @@ void rdp_new_processor(GFX_INFO _gfx_info, bool _upscale)
 		flags |= RDP::COMMAND_PROCESSOR_FLAG_UPSCALING_2X_BIT;
 		flags |= RDP::COMMAND_PROCESSOR_FLAG_SUPER_SAMPLED_DITHER_BIT;
 	}
-	processor = new RDP::CommandProcessor(wsi->get_device(), gfx_info.RDRAM, 0, gfx_info.RDRAM_SIZE, gfx_info.RDRAM_SIZE / 8, flags);
+	processor = new RDP::CommandProcessor(wsi->get_device(), gfx_info.RDRAM, 0, gfx_info.RDRAM_SIZE, gfx_info.RDRAM_SIZE / 2, flags);
 }
 
 void rdp_init(void *_window, GFX_INFO _gfx_info, bool _upscale, bool _integer_scaling, bool _fullscreen)
diff --git a/src/device/rdp.rs b/src/device/rdp.rs
index d9e76baf..20172ff7 100644
--- a/src/device/rdp.rs
+++ b/src/device/rdp.rs
@@ -118,6 +118,7 @@ fn run_rdp(device: &mut device::Device) {
     let timer = ui::video::process_rdp_list();
     device.rdp.regs_dpc[DPC_STATUS_REG as usize] |=
         DPC_STATUS_START_GCLK | DPC_STATUS_PIPE_BUSY | DPC_STATUS_CMD_BUSY;
+    device.rdp.regs_dpc[DPC_PIPEBUSY_REG as usize] = 0xFFFFFF;
 
     if timer != 0 {
         if device.save_state {
@@ -205,6 +206,7 @@ fn update_dpc_status(device: &mut device::Device, w: u32) {
 pub fn init(device: &mut device::Device) {
     device.rdp.regs_dpc[DPC_STATUS_REG as usize] |=
         DPC_STATUS_START_GCLK | DPC_STATUS_PIPE_BUSY | DPC_STATUS_CBUF_READY;
+    device.rdp.regs_dpc[DPC_PIPEBUSY_REG as usize] = 0xFFFFFF;
 }
 
 pub fn rdp_interrupt_event(device: &mut device::Device) {