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-rw-r--r--opl/opl_win32.c31
1 files changed, 29 insertions, 2 deletions
diff --git a/opl/opl_win32.c b/opl/opl_win32.c
index 29df3643..277ce76c 100644
--- a/opl/opl_win32.c
+++ b/opl/opl_win32.c
@@ -72,8 +72,35 @@ static void OPL_Win32_PortWrite(opl_port_t port, unsigned int value)
);
}
-// TODO: MSVC version
-// #elif defined(_MSC_VER) && defined(_M_IX6) ...
+// haleyjd 20110417: MSVC version
+#elif defined(_MSC_VER) && defined(_M_IX86)
+
+static unsigned int OPL_Win32_PortRead(opl_port_t port)
+{
+ unsigned char result;
+ opl_port_t dst_port = opl_port_base + port;
+
+ __asm
+ {
+ mov edx, dword ptr [dst_port]
+ in al, dx
+ mov byte ptr [result], al
+ }
+
+ return result;
+}
+
+static void OPL_Win32_PortWrite(opl_port_t port, unsigned int value)
+{
+ opl_port_t dst_port = opl_port_base + port;
+
+ __asm
+ {
+ mov edx, dword ptr [dst_port]
+ mov al, byte ptr [value]
+ out dx, al
+ }
+}
#else