Covox on PPU I/O Port A (2)

nzeemin · Feb 12, 2024 · 9393e08 · 9393e08
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diff --git a/README.md b/README.md
@@ -5,6 +5,8 @@ UKNCBTL — UKNC Back to Life! emulator, Win32 version.
 [![Build status](https://ci.appveyor.com/api/projects/status/xicur65lusd5c3ab?svg=true)](https://ci.appveyor.com/project/nzeemin/ukncbtl)
 [![CodeFactor](https://www.codefactor.io/repository/github/nzeemin/ukncbtl/badge)](https://www.codefactor.io/repository/github/nzeemin/ukncbtl)
 
+![GitHub all releases](https://img.shields.io/github/downloads/nzeemin/ukncbtl/total)
+
 ### На русском / In Russian
 UKNCBTL — UKNC Back to Life! — это эмулятор компьютера Электроника МС-0511 (УКНЦ).
 УКНЦ это советский домашний/учебный компьютер, построенный на двух процессорах КМ1801ВМ2, совместимых по системе команд с Электроника-60, ДВК и др.

diff --git a/emulator/emubase/Board.cpp b/emulator/emubase/Board.cpp
@@ -1534,8 +1534,8 @@ void CMotherboard::DoSound(void)
     {
         // Get byte from printer port output register, inverted, and merge it with the channel data
         CSecondMemoryController* pSecondMemCtl = dynamic_cast<CSecondMemoryController*>(m_pSecondMemCtl);
-        uint8_t valuecovox = pSecondMemCtl->m_Port177100 ^ 0xff;
-        value |= valuecovox << 7;
+        uint16_t valuecovox = (pSecondMemCtl->m_Port177100 ^ 0xff) << 7;
+        value ^= valuecovox;
     }
 
     if (m_SoundGenCallback != nullptr)