From db422fab7e38e769a164a67221634c9bfc77ee60 Mon Sep 17 00:00:00 2001
From: Uri Shaked
Date: Fri, 29 May 2020 11:23:49 +0300
Subject: fix(gpio): port state not updated on DDR write

Calling `pinState()` inside a GPIO port listener returns incorrect values after changing DDR

close #47
---
 src/peripherals/gpio.ts | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/peripherals/gpio.ts')

diff --git a/src/peripherals/gpio.ts b/src/peripherals/gpio.ts
index cb21669..e0861d7 100644
--- a/src/peripherals/gpio.ts
+++ b/src/peripherals/gpio.ts
@@ -110,8 +110,10 @@ export class AVRIOPort {
   constructor(private cpu: CPU, private portConfig: AVRPortConfig) {
     cpu.writeHooks[portConfig.DDR] = (value: u8) => {
       const portValue = cpu.data[portConfig.PORT];
+      cpu.data[portConfig.DDR] = value;
       this.updatePinRegister(portValue, value);
       this.writeGpio(portValue, value);
+      return true;
     };
     cpu.writeHooks[portConfig.PORT] = (value: u8) => {
       const ddrMask = cpu.data[portConfig.DDR];
-- 
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