From 51dd0948df5ed53b11cab4e909e19ee7cee363c5 Mon Sep 17 00:00:00 2001
From: Leo C
Date: Sat, 8 Sep 2018 20:37:23 +0200
Subject: new debug command: xx test. get freq command from single step branch.

---
 avr/z80-if.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'avr/z80-if.c')

diff --git a/avr/z80-if.c b/avr/z80-if.c
index 9452ad1..5d88842 100644
--- a/avr/z80-if.c
+++ b/avr/z80-if.c
@@ -145,6 +145,15 @@ void z80_bus_request_or_exit(void)
 static zstate_t zstate;
 static volatile uint8_t timer;		/* used for bus timeout */
 
+#if 0
+static volatile uint16_t req_cycles_ovl;
+
+ISR(TIMER4_COMPB_vect)
+{
+	req_cycles_ovl++;
+}
+#endif
+
 /*---------------------------------------------------------*/
 /* 10Hz timer interrupt generated by OC5A                  */
 /*---------------------------------------------------------*/
@@ -352,6 +361,7 @@ zstate_t z80_bus_cmd(bus_cmd_t cmd)
 		z80_dbus_set_in();
 		z80_addrbus_set_in();
 		z80_reset_active();
+		_delay_us(10);
 		Z80_O_BUSREQ = 1;
 		timer = BUS_TO;
 		while (Z80_I_BUSACK == 0 && timer)
@@ -400,6 +410,7 @@ zstate_t z80_bus_cmd(bus_cmd_t cmd)
 			z80_dbus_set_in();
 			z80_addrbus_set_in();
 			z80_reset_active();
+			_delay_us(10);
 			Z80_O_BUSREQ = 1;
 			timer = BUS_TO;
 			while (Z80_I_BUSACK == 0 && timer)
-- 
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