From: Alan Cox <alan@linux.intel.com>
Date: Wed, 16 May 2018 21:22:18 +0000 (+0100)
Subject: trs80: fix IRQ handling logic
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=bd58a55eb6a3f3930d7ac75e08fa005bc461eebe;p=FUZIX.git

trs80: fix IRQ handling logic
---

diff --git a/Kernel/platform-trs80/main.c b/Kernel/platform-trs80/main.c
index 013dd1d5..19799b8e 100644
--- a/Kernel/platform-trs80/main.c
+++ b/Kernel/platform-trs80/main.c
@@ -33,13 +33,15 @@ uint8_t platform_param(char *p)
 
 void platform_interrupt(void)
 {
-  uint8_t irq = irqstat;
+  uint8_t irq = ~irqstat;
+  uint8_t dummy;
   if (irq & 0x20)
     tty_interrupt();
-  if (!(irq & 0x80))
-    return;
-  kbd_interrupt();
-  timer_interrupt();
+  if (irq & 0x04) {
+    kbd_interrupt();
+    timer_interrupt();
+    dummy = irqack;
+  }
 }
 
 /*