X-Git-Url: http://git.joshuawise.com/firearm.git/blobdiff_plain/3a57f3e5cbccf519c546eebed9fa9db7c328d72c..1ce42adaa6034197934f1636dbb9aa435df12776:/testbench.cpp

diff --git a/testbench.cpp b/testbench.cpp
index 4188d71..da3d75e 100644
--- a/testbench.cpp
+++ b/testbench.cpp
@@ -1,8 +1,55 @@
 #include "Vsystem.h"
 #include <stdio.h>
+#define _XOPEN_SOURCE
+#include <stdlib.h>
+#include <fcntl.h>
+#include <termios.h>
 
 Vsystem *top;
 
+int ptyfd = -1;
+
+void openpty()
+{
+	int fd = posix_openpt(O_RDWR);
+	char b[128];
+	struct termios kbdios;
+	
+	grantpt(fd);  
+	fcntl(fd, F_SETFD, 0);	/* clear close-on-exec */
+	tcgetattr(fd, &kbdios);
+	kbdios.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
+	tcsetattr(fd, TCSANOW, &kbdios);
+	sprintf(b, "rxvt -pty-fd %d -bg black -fg white -title \"Output terminal\" &", fd);
+	system(b);
+	unlockpt(fd);
+	ptyfd = open(ptsname(fd), O_RDWR | O_NONBLOCK);
+	close(fd);
+}
+
+unsigned int term_input()
+{
+	int rv;
+	unsigned char c;
+	if (ptyfd == -1)
+		openpty();
+	rv = read(ptyfd, &c, 1);
+	if (rv < 0)
+		return 0;
+	return 0x100 | c;
+}
+
+void term_output(unsigned char d)
+{
+	int fd = posix_openpt(O_RDWR);
+	static int fd2 = -1;
+	char b[128];
+
+	if (ptyfd == -1)
+		openpty();
+	write(ptyfd, &d, 1);
+}
+
 unsigned int main_time = 0;
 
 double sc_time_stamp ()
@@ -18,7 +65,7 @@ int main()
 	while (!Verilated::gotFinish())
 	{
 		top->clk = !top->clk;
-		
+		top->rst = 0;
 		top->eval();
 //		if (top->clk == 1)
 //			printf("%d: Bubble: %d. PC: %08x. Ins'n: %08x\n", main_time/2, top->bubbleshield, top->pc, top->insn);