From 05006805224615eba45c7e1491915f64e23bf18a Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Mon, 25 Mar 2024 01:50:25 +0200
Subject: [PATCH] spu: more status bits

notaz/pcsx_rearmed#338
---
 plugins/dfsound/registers.c | 2 +-
 plugins/dfsound/registers.h | 5 ++++-
 plugins/dfsound/spu.c       | 1 +
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/plugins/dfsound/registers.c b/plugins/dfsound/registers.c
index 1e79c0e6..6d72d3ca 100644
--- a/plugins/dfsound/registers.c
+++ b/plugins/dfsound/registers.c
@@ -144,7 +144,7 @@ void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val,
       break;
     //-------------------------------------------------//
     case H_SPUctrl:
-      spu.spuStat = (spu.spuStat & ~0x3f) | (val & 0x3f);
+      spu.spuStat = (spu.spuStat & ~0xbf) | (val & 0x3f) | ((val << 2) & 0x80);
       spu.spuStat &= ~STAT_IRQ | val;
       if (!(spu.spuCtrl & CTRL_IRQ)) {
         if (val & CTRL_IRQ)
diff --git a/plugins/dfsound/registers.h b/plugins/dfsound/registers.h
index a296431f..4acfe6f2 100644
--- a/plugins/dfsound/registers.h
+++ b/plugins/dfsound/registers.h
@@ -153,7 +153,10 @@
 #define CTRL_MUTE               0x4000
 #define CTRL_ON                 0x8000
 
-#define STAT_IRQ                0x40
+#define STAT_IRQ                0x0040
+#define STAT_DMA_W              0x0100
+#define STAT_DMA_R              0x0200
+#define STAT_DMA_BUSY           0x0400
 
 ///////////////////////////////////////////////////////////
 
diff --git a/plugins/dfsound/spu.c b/plugins/dfsound/spu.c
index 9d43e438..022a1e3d 100644
--- a/plugins/dfsound/spu.c
+++ b/plugins/dfsound/spu.c
@@ -1245,6 +1245,7 @@ void do_samples(unsigned int cycles_to, int force_no_thread)
 
   spu.cycles_played += ns_to * 768;
   spu.decode_pos = (spu.decode_pos + ns_to) & 0x1ff;
+  spu.spuStat = (spu.spuStat & ~0x800) | ((spu.decode_pos << 3) & 0x800);
 #if 0
   static int ccount; static time_t ctime; ccount++;
   if (time(NULL) != ctime)
-- 
2.39.5