From a041469ff8b2fd302d49815e6cbb1600848e51d1 Mon Sep 17 00:00:00 2001
From: Ompronce <88358700+Ompronce@users.noreply.github.com>
Date: Sun, 17 Oct 2021 23:37:10 -0400
Subject: [PATCH 1/2] Added alternate Tandy PSSJ I/O port at 1E0h (used in
 Tandy 1000 RSX)

---
 src/sound/snd_pssj.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/src/sound/snd_pssj.c b/src/sound/snd_pssj.c
index bdf013e2e..4eab5c856 100644
--- a/src/sound/snd_pssj.c
+++ b/src/sound/snd_pssj.c
@@ -201,6 +201,20 @@ void *pssj_init(const device_t *info)
         return pssj;
 }
 
+void *pssj_1e0_init(const device_t *info)
+{
+        pssj_t *pssj = malloc(sizeof(pssj_t));
+        memset(pssj, 0, sizeof(pssj_t));
+
+        sn76489_init(&pssj->sn76489, 0x01e0, 0x0004, PSSJ, 3579545);
+
+        io_sethandler(0x01E4, 0x0004, pssj_read, NULL, NULL, pssj_write, NULL, NULL, pssj);
+		timer_add(&pssj->timer_count, pssj_callback, pssj, pssj->enable);
+        sound_add_handler(pssj_get_buffer, pssj);
+        
+        return pssj;
+}
+
 void pssj_close(void *p)
 {
         pssj_t *pssj = (pssj_t *)p;
@@ -219,3 +233,15 @@ const device_t pssj_device =
         NULL,
         NULL
 };
+
+const device_t pssj_1e0_device =
+{
+        "Tandy PSSJ (port 1e0h)",
+        0, 0,
+        pssj_1e0_init,
+        pssj_close,
+	NULL,
+        { NULL },
+        NULL,
+        NULL
+};

From 549a477d19c92aa71c560066181f490181293b52 Mon Sep 17 00:00:00 2001
From: Ompronce <88358700+Ompronce@users.noreply.github.com>
Date: Mon, 18 Oct 2021 00:32:21 -0400
Subject: [PATCH 2/2] Restored SN76489 back to IBM PCjr, as SN76496 and SN76489
 are identical.

---
 src/machine/m_pcjr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/machine/m_pcjr.c b/src/machine/m_pcjr.c
index c54c7f0c7..35ddfe6da 100644
--- a/src/machine/m_pcjr.c
+++ b/src/machine/m_pcjr.c
@@ -859,8 +859,8 @@ machine_pcjr_init(const machine_t *model)
     keyboard_set_table(scancode_xt);
     keyboard_send = kbd_adddata_ex;
 
-    /* Technically it's the SN76496N, but the NCR 8496 is a drop-in replacement for it. */
-    device_add(&ncr8496_device);
+    /* Technically it's the SN76496N, but the SN76489 is identical to the SN76496N. */
+    device_add(&sn76489_device);
 
     nmi_mask = 0x80;