From: Leo C <erbl259-lmu@yahoo.de>
Date: Sat, 8 Sep 2018 18:31:49 +0000 (+0200)
Subject: bool reset_polarity --> Stat & S_RESET_POLARITY
X-Git-Url: http://cloudbase.mooo.com/gitweb/z180-stamp.git/commitdiff_plain/7dda03f3ce376f35d080325551ccdca6c7414061

bool reset_polarity --> Stat & S_RESET_POLARITY
---

diff --git a/avr/z80-if.c b/avr/z80-if.c
index 7a953f0..9452ad1 100644
--- a/avr/z80-if.c
+++ b/avr/z80-if.c
@@ -144,7 +144,6 @@ void z80_bus_request_or_exit(void)
 
 static zstate_t zstate;
 static volatile uint8_t timer;		/* used for bus timeout */
-static bool reset_polarity;
 
 /*---------------------------------------------------------*/
 /* 10Hz timer interrupt generated by OC5A                  */
@@ -207,7 +206,7 @@ static void z80_dbus_set_out(void)
 
 static void z80_reset_active(void)
 {
-	if (reset_polarity)
+	if (Stat & S_RESET_POLARITY)
 		Z80_O_RST = 1;
 	else
 		Z80_O_RST = 0;
@@ -215,7 +214,7 @@ static void z80_reset_active(void)
 
 static void z80_reset_inactive(void)
 {
-	if (reset_polarity)
+	if (Stat & S_RESET_POLARITY)
 		Z80_O_RST = 0;
 	else
 		Z80_O_RST = 1;
@@ -255,7 +254,10 @@ void z80_setup_bus(void)
 			DDR_SS = (DDR_SS & ~_BV(WAIT)) | _BV(RUN) | _BV(STEP);
 		}
 
-		reset_polarity = Z80_I_RST;
+		if (Z80_I_RST)
+			Stat |= S_RESET_POLARITY;
+		else
+			Stat &= ~S_RESET_POLARITY;
 		z80_reset_active();
 		DDR_RST |= _BV(RST);
 
diff --git a/include/common.h b/include/common.h
index 12d87c4..9bd3418 100644
--- a/include/common.h
+++ b/include/common.h
@@ -78,9 +78,10 @@ struct bits {
 extern volatile uint_least8_t Stat;
 #endif /* __AVR__ */
 
-#define S_10MS_TO		(1<<0)
-#define S_MSG_PENDING	(1<<1)
-#define S_CON_PENDING	(1<<2)
+#define S_10MS_TO			(1<<0)
+#define S_MSG_PENDING		(1<<1)
+#define S_CON_PENDING		(1<<2)
+#define S_RESET_POLARITY	(1<<3)
 
 static inline
 int my_puts(const char *s)