diff --git a/panel/Makefile b/panel/Makefile
new file mode 100644
index 0000000..e79c5ae
--- /dev/null
+++ b/panel/Makefile
@@ -0,0 +1,13 @@
+SRC=panel6.c
+# clang
+#CFLAGS= -Wno-shift-op-parentheses -Wno-logical-op-parentheses \
+#        -Wno-bitwise-op-parentheses
+CFLAGS=  -g -fno-diagnostics-show-caret \
+	`sdl-config --cflags` `pkg-config SDL_image --cflags`
+
+LIBS=	`sdl-config --libs` `pkg-config SDL_image --libs` -lpthread
+
+
+panel6: $(SRC)
+	$(CC) $(CFLAGS) $(SRC) $(LIBS) -o panel6
+
diff --git a/panel/coreread.c b/panel/coreread.c
new file mode 100644
index 0000000..3709e5c
--- /dev/null
+++ b/panel/coreread.c
@@ -0,0 +1,56 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <linux/i2c-dev.h>
+
+typedef uint64_t word;
+typedef unsigned char uchar;
+
+void
+err(char *fmt, ...)
+{
+        va_list ap;
+        va_start(ap, fmt);
+        fprintf(stderr, "error: ");
+        vfprintf(stderr, fmt, ap);
+        fprintf(stderr, "\n");
+        va_end(ap);
+        exit(1);
+}
+
+uchar*
+puthalfword(uchar *p, word w)
+{
+	p[2] = w & 077;
+	p[1] = (w >>  6) & 077;
+	p[0] = (w >> 12) & 077;
+	return p+3;
+}
+
+int
+main()
+{
+	int i;
+	uchar msg[3+8*6], *p;
+	int fd;
+	if(fd = open("/dev/i2c-1", O_RDWR), fd < 0)
+		err("couldn't open file");
+	if(ioctl(fd, I2C_SLAVE, 0x21) < 0)
+		err("couldn't select device");
+
+	puthalfword(msg, 0000000);
+	write(fd, msg, 3);
+
+	read(fd, msg, 48+2);
+
+	for(i = 0; i < 48; i++)
+		printf("%03o ", msg[i+2]);
+	printf("\n");
+
+	close(fd);
+	
+	return 0;
+}
diff --git a/panel/corewrite.c b/panel/corewrite.c
new file mode 100644
index 0000000..51665ba
--- /dev/null
+++ b/panel/corewrite.c
@@ -0,0 +1,76 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <linux/i2c-dev.h>
+
+typedef uint64_t word;
+typedef unsigned char uchar;
+
+void
+err(char *fmt, ...)
+{
+        va_list ap;
+        va_start(ap, fmt);
+        fprintf(stderr, "error: ");
+        vfprintf(stderr, fmt, ap);
+        fprintf(stderr, "\n");
+        va_end(ap);
+        exit(1);
+}
+
+uchar*
+puthalfword(uchar *p, word w)
+{
+	p[2] = w & 077;
+	p[1] = (w >>  6) & 077;
+	p[0] = (w >> 12) & 077;
+	return p+3;
+}
+
+uchar*
+putword(uchar *p, word w)
+{
+	p[5] = w & 077;
+	p[4] = (w >>  6) & 077;
+	p[3] = (w >> 12) & 077;
+	p[2] = (w >> 18) & 077;
+	p[1] = (w >> 24) & 077;
+	p[0] = (w >> 30) & 077;
+	return p+6;
+}
+
+int
+main()
+{
+	int i;
+	uchar msg[3+8*6], *p;
+	int fd;
+	if(fd = open("/dev/i2c-1", O_RDWR), fd < 0)
+		err("couldn't open file");
+	if(ioctl(fd, I2C_SLAVE, 0x21) < 0)
+		err("couldn't select device");
+
+	p = msg;
+	p = puthalfword(p, 0000000);
+	p = putword(p, 0111222333444);
+	p = putword(p, 0111111111111);
+	p = putword(p, 0222222222222);
+	p = putword(p, 0333333333333);
+	p = putword(p, 0444444444444);
+	p = putword(p, 0555555555555);
+	p = putword(p, 0666666666666);
+	p = putword(p, 0777777777777);
+printf("%d\n", p-msg);
+	write(fd, msg, p-msg);
+
+	for(i = 0; i < p-msg; i++)
+		printf("%03o ", msg[i]);
+	printf("\n");
+
+	close(fd);
+	
+	return 0;
+}
diff --git a/panel/elements.inc b/panel/elements.inc
new file mode 100644
index 0000000..62b3f76
--- /dev/null
+++ b/panel/elements.inc
@@ -0,0 +1,667 @@
+Element keys[] = {
+	/* keys */
+	{ keysurf, &opgrid2, { 0, 2 }, 0, 0 },
+	{ keysurf, &opgrid2, { 2.75, 2 }, 0, 0 },
+	{ keysurf, &opgrid2, { 5.5, 2 }, 0, 0 },
+	{ keysurf, &opgrid2, { 8.25, 2 }, 0, 0 },
+	{ keysurf, &opgrid2, { 11, 2 }, 0, 0 },
+	{ keysurf, &opgrid2, { 13.75, 2 }, 0, 0 },
+	{ keysurf, &opgrid2, { 16.5, 2 }, 0, 0 },
+	{ keysurf, &opgrid2, { 19.25, 2 }, 0, 0 },
+};
+
+Element switches[] = {
+	/* data switches */
+	{ switchsurf, &opgrid1, { 5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 6, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 7, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 8, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 9, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 10, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 11, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 12, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 13, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 14, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 15, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 16, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 17, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 18, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 19, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 20, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 21, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 22, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 23, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 24, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 25, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 26, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 27, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 28, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 29, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 30, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 31, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 32, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 33, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 34, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 35, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 36, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 37, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 38, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 39, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 40, 5 }, 0, 0 },
+
+	/* address switches */
+	{ switchsurf, &opgrid1, { 44.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 45.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 46.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 47.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 48.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 49.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 50.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 51.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 52.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 53.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 54.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 55.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 56.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 57.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 58.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 59.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 60.5, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 61.5, 5 }, 0, 0 },
+
+	/* repeat, addr stop, power, disable mem */
+	{ switchsurf, &opgrid1, { 78, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 78, 7 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 83, 5 }, 0, 0 },
+	{ switchsurf, &opgrid1, { 83, 7 }, 0, 0 },
+
+	/* maint. switches */
+	{ switchsurf, &extragrid, { 2, 10 }, 0, 0 },
+	{ switchsurf, &extragrid, { 2, 9 }, 0, 0 },
+	{ switchsurf, &extragrid, { 2, 8 }, 0, 0 },
+	{ switchsurf, &extragrid, { 2, 7 }, 0, 0 },
+	{ switchsurf, &extragrid, { 2, 6 }, 0, 0 },
+};
+
+Element lamps[] = {
+	/* memory indicator */
+	{ lampsurf, &opgrid1, { 5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 6, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 7, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 8, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 9, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 10, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 11, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 12, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 13, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 14, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 15, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 16, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 17, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 18, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 19, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 20, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 21, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 22, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 23, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 24, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 25, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 26, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 27, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 28, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 29, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 30, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 31, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 32, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 33, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 34, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 35, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 36, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 37, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 38, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 39, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 40, 7 }, 0, 0 },
+
+	/* IR */
+	{ lampsurf, &opgrid1, { 5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 6, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 7, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 8, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 9, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 10, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 11, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 12, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 13, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 14, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 15, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 16, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 17, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 18, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 19, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 20, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 21, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 22, 9 }, 0, 0 },
+
+	/* address indicator */
+	{ lampsurf, &opgrid1, { 44.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 45.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 46.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 47.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 48.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 49.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 50.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 51.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 52.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 53.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 54.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 55.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 56.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 57.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 58.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 59.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 60.5, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 61.5, 7 }, 0, 0 },
+
+	/* PC */
+	{ lampsurf, &opgrid1, { 44.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 45.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 46.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 47.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 48.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 49.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 50.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 51.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 52.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 53.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 54.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 55.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 56.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 57.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 58.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 59.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 60.5, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 61.5, 9 }, 0, 0 },
+
+	/* pi active */
+	{ lampsurf, &opgrid1, { 68, 5 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 69, 5 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 70, 5 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 71, 5 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 72, 5 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 73, 5 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 74, 5 }, 0, 0 },
+
+	/* pi request */
+	{ lampsurf, &opgrid1, { 68, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 69, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 70, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 71, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 72, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 73, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 74, 7 }, 0, 0 },
+
+	/* pi in progress */
+	{ lampsurf, &opgrid1, { 68, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 69, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 70, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 71, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 72, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 73, 9 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 74, 9 }, 0, 0 },
+
+	/* run, mem stop, pi on */
+	{ lampsurf, &opgrid1, { 66, 5 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 66, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 66, 9 }, 0, 0 },
+
+	/* repeat, addr stop, power, disable mem */
+	{ lampsurf, &opgrid1, { 79, 5 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 79, 7 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 84, 5 }, 0, 0 },
+	{ lampsurf, &opgrid1, { 84, 7 }, 0, 0 },
+
+	/* Flip flops */
+
+	/* MB */
+	{ lampsurf, &indgrid2, { 4, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 5, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 6, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 7, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 8, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 9, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 10, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 11, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 12, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 13, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 14, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 15, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 16, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 17, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 18, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 19, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 20, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 21, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 22, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 23, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 24, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 25, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 26, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 27, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 28, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 29, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 30, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 31, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 32, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 33, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 34, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 35, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 36, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 37, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 38, 8 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 39, 8 }, 0, 0 },
+
+	/* AR */
+	{ lampsurf, &indgrid2, { 4, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 5, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 6, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 7, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 8, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 9, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 10, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 11, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 12, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 13, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 14, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 15, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 16, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 17, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 18, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 19, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 20, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 21, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 22, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 23, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 24, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 25, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 26, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 27, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 28, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 29, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 30, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 31, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 32, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 33, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 34, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 35, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 36, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 37, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 38, 6 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 39, 6 }, 0, 0 },
+
+	/* MQ */
+	{ lampsurf, &indgrid2, { 4, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 5, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 6, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 7, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 8, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 9, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 10, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 11, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 12, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 13, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 14, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 15, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 16, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 17, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 18, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 19, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 20, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 21, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 22, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 23, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 24, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 25, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 26, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 27, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 28, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 29, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 30, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 31, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 32, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 33, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 34, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 35, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 36, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 37, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 38, 4 }, 0, 0 },
+	{ lampsurf, &indgrid2, { 39, 4 }, 0, 0 },
+
+	/* Flip flops */
+	/* column 1 */
+	{ lampsurf, &indgrid1, { 1, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 1, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 1, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 1, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 1, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 1, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 1, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 1, 3 }, 0, 0 },
+	/* column 2 */
+	{ lampsurf, &indgrid1, { 2, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 2, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 2, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 2, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 2, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 2, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 2, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 2, 3 }, 0, 0 },
+	/* column 3 */
+	{ lampsurf, &indgrid1, { 3, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 3, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 3, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 3, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 3, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 3, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 3, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 3, 3 }, 0, 0 },
+	/* column 4 */
+	{ lampsurf, &indgrid1, { 4, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 4, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 4, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 4, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 4, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 4, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 4, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 4, 3 }, 0, 0 },
+	/* column 5 */
+	{ lampsurf, &indgrid1, { 5, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 5, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 5, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 5, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 5, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 5, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 5, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 5, 3 }, 0, 0 },
+	/* column 6 */
+	{ lampsurf, &indgrid1, { 6, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 6, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 6, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 6, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 6, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 6, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 6, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 6, 3 }, 0, 0 },
+	/* column 7 */
+	{ lampsurf, &indgrid1, { 7, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 7, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 7, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 7, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 7, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 7, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 7, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 7, 3 }, 0, 0 },
+	/* column 8 */
+	{ lampsurf, &indgrid1, { 8, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 8, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 8, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 8, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 8, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 8, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 8, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 8, 3 }, 0, 0 },
+	/* column 9 */
+	{ lampsurf, &indgrid1, { 9, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 9, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 9, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 9, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 9, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 9, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 9, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 9, 3 }, 0, 0 },
+	/* column 10 */
+	{ lampsurf, &indgrid1, { 10, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 10, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 10, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 10, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 10, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 10, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 10, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 10, 3 }, 0, 0 },
+	/* column 11 */
+	{ lampsurf, &indgrid1, { 11, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 11, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 11, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 11, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 11, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 11, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 11, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 11, 3 }, 0, 0 },
+	/* column 12 */
+	{ lampsurf, &indgrid1, { 12, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 12, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 12, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 12, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 12, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 12, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 12, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 12, 3 }, 0, 0 },
+	/* column 13 */
+	{ lampsurf, &indgrid1, { 13, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 13, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 13, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 13, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 13, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 13, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 13, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 13, 3 }, 0, 0 },
+	/* column 14 */
+	{ lampsurf, &indgrid1, { 14, 10 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 14, 9 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 14, 8 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 14, 7 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 14, 6 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 14, 5 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 14, 4 }, 0, 0 },
+	{ lampsurf, &indgrid1, { 14, 3 }, 0, 0 },
+
+	/* IO bus */
+	{ lampsurf, &iogrid, { 4, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 5, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 6, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 7, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 8, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 9, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 10, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 11, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 12, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 13, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 14, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 15, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 16, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 17, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 18, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 19, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 20, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 21, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 22, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 23, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 24, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 25, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 26, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 27, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 28, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 29, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 30, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 31, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 32, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 33, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 34, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 35, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 36, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 37, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 38, 13 }, 0, 0 },
+	{ lampsurf, &iogrid, { 39, 13 }, 0, 0 },
+
+	/* card reader */
+	{ lampsurf, &iogrid, { 4, 15 }, 0, 0 },
+	{ lampsurf, &iogrid, { 5, 15 }, 0, 0 },
+	{ lampsurf, &iogrid, { 6, 15 }, 0, 0 },
+	{ lampsurf, &iogrid, { 7, 15 }, 0, 0 },
+	{ lampsurf, &iogrid, { 8, 15 }, 0, 0 },
+	{ lampsurf, &iogrid, { 9, 15 }, 0, 0 },
+	{ lampsurf, &iogrid, { 10, 15 }, 0, 0 },
+	{ lampsurf, &iogrid, { 11, 15 }, 0, 0 },
+	{ lampsurf, &iogrid, { 12, 15 }, 0, 0 },
+
+	/* card reader buffer */
+	{ lampsurf, &iogrid, { 4, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 5, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 6, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 7, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 8, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 9, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 10, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 11, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 12, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 13, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 14, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 15, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 16, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 17, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 18, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 19, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 20, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 21, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 22, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 23, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 24, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 25, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 26, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 27, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 28, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 29, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 30, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 31, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 32, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 33, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 34, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 35, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 36, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 37, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 38, 17 }, 0, 0 },
+	{ lampsurf, &iogrid, { 39, 17 }, 0, 0 },
+
+	/* paper tape reader */
+	{ lampsurf, &iogrid, { 4, 19 }, 0, 0 },
+	{ lampsurf, &iogrid, { 5, 19 }, 0, 0 },
+	{ lampsurf, &iogrid, { 6, 19 }, 0, 0 },
+	{ lampsurf, &iogrid, { 7, 19 }, 0, 0 },
+	{ lampsurf, &iogrid, { 8, 19 }, 0, 0 },
+	{ lampsurf, &iogrid, { 9, 19 }, 0, 0 },
+
+	/* paper tape reader buffer */
+	{ lampsurf, &iogrid, { 4, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 5, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 6, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 7, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 8, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 9, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 10, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 11, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 12, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 13, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 14, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 15, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 16, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 17, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 18, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 19, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 20, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 21, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 22, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 23, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 24, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 25, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 26, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 27, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 28, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 29, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 30, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 31, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 32, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 33, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 34, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 35, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 36, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 37, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 38, 21 }, 0, 0 },
+	{ lampsurf, &iogrid, { 39, 21 }, 0, 0 },
+
+	/* paper tape punch */
+	{ lampsurf, &iogrid, { 4, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 5, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 6, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 7, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 8, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 9, 23 }, 0, 0 },
+	/* data */
+	{ lampsurf, &iogrid, { 12, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 13, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 14, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 15, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 16, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 17, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 18, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 19, 23 }, 0, 0 },
+
+	/* teleprinter */
+	{ lampsurf, &iogrid, { 24, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 25, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 26, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 27, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 28, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 29, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 30, 23 }, 0, 0 },
+	/* tti data */
+	{ lampsurf, &iogrid, { 32, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 33, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 34, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 35, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 36, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 37, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 38, 23 }, 0, 0 },
+	{ lampsurf, &iogrid, { 39, 23 }, 0, 0 },
+
+	/* memory protection */
+	{ lampsurf, &iogrid, { 4, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 5, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 6, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 7, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 8, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 9, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 10, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 11, 25 }, 0, 0 },
+
+	/* memory relocation */
+	{ lampsurf, &iogrid, { 18, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 19, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 20, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 21, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 22, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 23, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 24, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 25, 25 }, 0, 0 },
+
+	/* relocated address */
+	{ lampsurf, &iogrid, { 32, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 33, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 34, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 35, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 36, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 37, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 38, 25 }, 0, 0 },
+	{ lampsurf, &iogrid, { 39, 25 }, 0, 0 },
+
+	/* extra lights */
+	{ lampsurf, &extragrid, { 4, 10 }, 0, 0 },
+};
diff --git a/panel/panel6.c b/panel/panel6.c
new file mode 100644
index 0000000..d36777b
--- /dev/null
+++ b/panel/panel6.c
@@ -0,0 +1,545 @@
+#include <stdarg.h>
+#include <fcntl.h>
+#include <SDL.h>
+#include <SDL_image.h>
+#include <pthread.h>
+#include <linux/i2c.h>
+#include <linux/i2c-dev.h>
+
+#define nelem(a) (sizeof(a)/sizeof(a[0]))
+#define nil NULL
+
+typedef uint64_t word;
+typedef uint32_t hword;
+typedef uint32_t u32;
+typedef uint16_t u16;
+typedef int8_t   i8;
+typedef uint8_t  u8;
+typedef unsigned char uchar;
+typedef uchar bool;
+
+typedef struct Point Point;
+struct Point
+{
+	float x, y;
+};
+
+typedef struct Panel Panel;
+struct Panel
+{
+	SDL_Surface *surf;
+	SDL_Rect pos;
+};
+
+typedef struct Grid Grid;
+struct Grid
+{
+	float xoff, yoff;
+	float xscl, yscl;
+	Panel *panel;
+};
+
+typedef struct Element Element;
+struct Element
+{
+	SDL_Surface **surf;
+	Grid *grid;
+	Point pos;
+	int state;
+	int active;
+};
+
+void
+err(char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	fprintf(stderr, "error: ");
+	vfprintf(stderr, fmt, ap);
+	fprintf(stderr, "\n");
+	va_end(ap);
+	exit(1);
+}
+
+SDL_Surface*
+mustloadimg(const char *path)
+{
+	SDL_Surface *s;
+	s = IMG_Load(path);
+	if(s == nil)
+		err("Couldn't load %s", path);
+	return s;
+}
+
+SDL_Surface *lampsurf[2];
+SDL_Surface *switchsurf[2];
+SDL_Surface *keysurf[3];
+
+Panel oppanel;
+Grid opgrid1;	/* the smaller base grid */
+Grid opgrid2;	/* the key grid */
+
+Panel iopanel;
+Grid iogrid;
+
+Panel indpanel1, indpanel2;
+Grid indgrid1;
+Grid indgrid2;
+
+Panel extrapanel;
+Grid extragrid;
+
+/* operator panel */
+Element *data_sw, *ma_sw, *misc_sw;
+Element *ir_l, *mi_l, *pc_l, *ma_l,
+        *pih_l, *pir_l, *pio_l, *misc_l;
+
+/* bay indicator panel */
+Element *mb_l, *ar_l, *mq_l;
+Element *ff_l;	/* flip flops */
+
+/* io panel */
+Element *iobus_l, *cr_l, *crbuf_l, *ptr_l, *ptrbuf_l,
+        *ptp_l, *ptpbuf_l, *tty_l, *ttibuf_l,
+	*pr_l, *rlr_l, *rla_l;
+
+/* extra panel */
+Element *extra_sw;
+Element *extra_l;
+
+#include "elements.inc"
+
+void
+setlights(uchar b, Element *l, int n)
+{
+	int i;
+	for(i = 0; i < n; i++)
+		l[i].state = !!(b & 1 << 7-i);
+}
+
+void
+set18lights(uchar *b, Element *l)
+{
+	setlights(b[0], l, 8);
+	setlights(b[1], l+8, 8);
+	setlights(b[2], l+16, 2);
+}
+
+void
+set36lights(uchar *b, Element *l)
+{
+	setlights(b[0], l, 8);
+	setlights(b[1], l+8, 8);
+	setlights(b[2], l+16, 8);
+	setlights(b[3], l+24, 8);
+	setlights(b[4], l+32, 4);
+}
+
+uchar
+getswitches(Element *sw, int n, int state)
+{
+	uchar b;
+	int i;
+	b = 0;
+	for(i = 0; i < n; i++)
+		b |= (uchar)(sw[i].state == state) << 7-i;
+	return b;
+}
+
+uchar
+get18switches(uchar *b, Element *sw)
+{
+	b[0] = getswitches(sw, 8, 1);
+	b[1] = getswitches(sw+8, 8, 1);
+	b[2] = getswitches(sw+16, 2, 1);
+}
+
+uchar
+get36switches(uchar *b, Element *sw)
+{
+	b[0] = getswitches(sw, 8, 1);
+	b[1] = getswitches(sw+8, 8, 1);
+	b[2] = getswitches(sw+16, 8, 1);
+	b[3] = getswitches(sw+24, 8, 1);
+	b[4] = getswitches(sw+32, 4, 1);
+}
+
+void
+putpixel(SDL_Surface *screen, int x, int y, Uint32 col)
+{
+	Uint32 *p = (Uint32*)screen->pixels;
+	if(x < 0 || x >= screen->w ||
+	   y < 0 || y >= screen->h)
+		return;
+	p += y*screen->w+x;
+	*p = SDL_MapRGBA(screen->format,
+		col&0xFF, (col>>8)&0xFF, (col>>16)&0xFF, (col>>24)&0xFF);
+}
+
+void
+drawhline(SDL_Surface *screen, int y, int x1, int x2, Uint32 col)
+{
+	for(; x1 < x2; x1++)
+		putpixel(screen, x1, y, col);
+}
+
+void
+drawvline(SDL_Surface *screen, int x, int y1, int y2, Uint32 col)
+{
+	for(; y1 < y2; y1++)
+		putpixel(screen, x, y1, col);
+}
+
+Point
+xform(Grid *g, Point p)
+{
+	p.x = g->panel->pos.x + g->xoff + p.x*g->xscl;
+	p.y = g->panel->pos.y + (g->panel->surf->h - (g->yoff + p.y*g->yscl));
+	return p;
+}
+
+int
+ismouseover(Element *e, int x, int y)
+{
+	Point p;
+
+	p = xform(e->grid, e->pos);
+	return x >= p.x && x <= p.x + e->surf[e->state]->w &&
+	       y >= p.y && y <= p.y + e->surf[e->state]->h;
+}
+
+void
+drawgrid(Grid *g, SDL_Surface *s, Uint32 col)
+{
+	SDL_Surface *ps;
+	int x, y;
+	int xmax, ymax;
+	Point p;
+
+	ps = g->panel->surf;
+	xmax = ps->w/g->xscl;
+	ymax = ps->h/g->yscl;
+	for(x = 0; x < xmax; x++){
+		p = xform(g, (Point){ x, 0 });
+		drawvline(s, p.x,
+		          p.y - ps->h, p.y, col);
+	}
+	for(y = 0; y < ymax; y++){
+		p = xform(g, (Point){ 0, y });
+		drawhline(s, p.y,
+		          p.x, p.x + ps->w, col);
+	}
+}
+
+void
+drawelement(SDL_Surface *screen, Element *elt, int power)
+{
+	SDL_Rect r;
+	Point p;
+	int s;
+
+	p = xform(elt->grid, elt->pos);
+	r.x = p.x+0.5;
+	r.y = p.y+0.5;
+	if(elt->surf == lampsurf)
+		s = elt->state && power;
+	else
+		s = elt->state;
+	SDL_BlitSurface(elt->surf[s], nil, screen, &r);
+}
+
+void
+mouse(int button, int state, int x, int y)
+{
+	static int buttonstate;
+	Element *e;
+	int i;
+
+	if(button){
+		if(state == 1)
+			buttonstate |= 1 << button-1;
+		else
+			buttonstate &= ~(1 << button-1);
+	}
+
+	/* keys */
+	for(i = 0; i < nelem(keys); i++){
+		e = &keys[i];
+		/* e->active means latched on/off for keys */
+		if(buttonstate == 0 || !ismouseover(e, x, y)){
+			if(!e->active)
+				e->state = 0;
+			continue;
+		}
+		if((buttonstate & 5) == 5)	/* left and right -> latched on/off */
+			e->active = !e->active;
+		else if(buttonstate & 1)	/* left button -> down */
+			e->state = 1;
+		else if(buttonstate & 4)	/* right button -> up */
+			e->state = 2;
+	}
+
+	/* switches */
+	for(i = 0; i < nelem(switches); i++){
+		e = &switches[i];
+		if(buttonstate == 0 || !ismouseover(e, x, y)){
+			e->active = 0;
+			continue;
+		}
+		if(!e->active){
+			e->active = 1;
+			if(buttonstate & 1)	/* left button, toggle */
+				e->state = !e->state;
+			else if(buttonstate & 2)	/* middle button, on */
+				e->state = 1;
+			else if(buttonstate & 4)	/* right button, off */
+				e->state = 0;
+		}
+	}
+}
+
+void
+findlayout(int *w, int *h)
+{
+	float gap;
+
+	gap = (oppanel.surf->w - indpanel1.surf->w - indpanel2.surf->w)/4.0f;
+
+	indpanel1.pos = (SDL_Rect){ 0, 0, 0, 0 };
+	indpanel1.pos.x += gap;
+
+	indpanel2.pos = indpanel1.pos;
+	indpanel2.pos.x += indpanel1.surf->w + 2*gap;
+
+	iopanel.pos = indpanel2.pos;
+	iopanel.pos.y += indpanel2.surf->h;
+
+	oppanel.pos = (SDL_Rect){ 0, 0, 0, 0 };
+	oppanel.pos.y += indpanel1.surf->h*2.7;
+
+	extrapanel.pos = indpanel1.pos;
+	extrapanel.pos.y = oppanel.pos.y - extrapanel.surf->h;
+
+	*w = oppanel.surf->w;
+	*h = oppanel.pos.y + oppanel.surf->h;
+}
+
+void*
+talki2c(void *x)
+{
+	int fd;
+	int i;
+	int n;
+	uchar msg[128], *p;
+
+	fd = open("/dev/i2c-1", O_RDWR);
+	if(fd < 0)
+		err("Couldn't open I2C connection");
+	if(ioctl(fd, I2C_SLAVE, 0x26) < 0)
+		err("Couldn't select device");
+
+	while(1){
+		n = 0;
+		msg[n++] = 0;	// address
+		get18switches(&msg[n], ma_sw); n += 3;
+		get36switches(&msg[n], data_sw); n += 5;
+		msg[n++] = getswitches(misc_sw, 4, 1);
+		msg[n++] = getswitches(extra_sw, 6, 1);
+		msg[n++] = getswitches(keys, 8, 1);
+		msg[n++] = getswitches(keys, 8, 2);
+		write(fd, msg, n);
+
+		p = msg;
+		*p++ = 0;
+		write(fd, msg, 1);
+		p = msg;
+		read(fd, p, 0x12);
+		p += 0x12;
+
+		read(fd, p, 0xF);
+		p += 0xF;
+
+		read(fd, p, 0xE);
+		p += 0xE;
+
+		n = 0;
+		set18lights(&msg[n], ir_l); n += 3;
+		set18lights(&msg[n], pc_l); n += 3;
+		set36lights(&msg[n], mi_l); n += 5;
+		set18lights(&msg[n], ma_l); n += 3;
+		setlights(msg[n+0]<<1, pih_l, 7);
+		setlights(msg[n+1]<<1, pir_l, 7);
+		setlights(msg[n+2]<<1, pio_l, 7);
+		misc_l[0].state = !!(msg[n+2] & 0x80);
+		misc_l[1].state = !!(msg[n+1] & 0x80);
+		misc_l[2].state = !!(msg[n+0] & 0x80);
+		misc_l[3].state = !!(msg[n+3] & 0x80);
+		misc_l[4].state = !!(msg[n+3] & 0x40);
+		misc_l[5].state = !!(msg[n+3] & 0x20);
+		misc_l[6].state = !!(msg[n+3] & 0x10);
+		n += 4;
+		set36lights(&msg[n], mb_l); n += 5;
+		set36lights(&msg[n], ar_l); n += 5;
+		set36lights(&msg[n], mq_l); n += 5;
+
+		setlights(msg[n++], &ff_l[0], 8);
+		setlights(msg[n++], &ff_l[8], 8);
+		setlights(msg[n++], &ff_l[16], 8);
+		setlights(msg[n++], &ff_l[24], 8);
+		setlights(msg[n++], &ff_l[32], 8);
+		setlights(msg[n++], &ff_l[40], 8);
+		setlights(msg[n++], &ff_l[48], 8);
+		setlights(msg[n++], &ff_l[56], 8);
+		setlights(msg[n++], &ff_l[64], 8);
+		setlights(msg[n++], &ff_l[72], 8);
+		setlights(msg[n++], &ff_l[80], 8);
+		setlights(msg[n++], &ff_l[88], 8);
+		setlights(msg[n++], &ff_l[96], 8);
+		setlights(msg[n++], &ff_l[104], 8);
+
+		for(i = 0; i < n; i++)
+			printf("%02X ", msg[i]);
+		printf("\n");
+	}
+
+	close(fd);
+}
+
+int
+main(int argc, char *argv[])
+{
+	SDL_Surface *screen;
+	SDL_Event ev;
+	SDL_MouseButtonEvent *mbev;
+	SDL_MouseMotionEvent *mmev;
+	Element *e;
+	int i;
+	int w, h;
+	pthread_t comthread;
+
+	if(SDL_Init(SDL_INIT_VIDEO) < 0)
+		err("%s", SDL_GetError());
+
+	lampsurf[0] = mustloadimg("../art/lamp_off.png");
+	lampsurf[1] = mustloadimg("../art/lamp_on.png");
+
+	switchsurf[0] = mustloadimg("../art/switch_d.png");
+	switchsurf[1] = mustloadimg("../art/switch_u.png");
+
+	keysurf[0] = mustloadimg("../art/key_n.png");
+	keysurf[1] = mustloadimg("../art/key_d.png");
+	keysurf[2] = mustloadimg("../art/key_u.png");
+
+	oppanel.surf = mustloadimg("../art/op_panel.png");
+
+	opgrid1.panel = &oppanel;
+	opgrid1.xscl = opgrid1.panel->surf->w/90.0f;
+	opgrid1.yscl = opgrid1.panel->surf->h/11.0f;
+	opgrid1.yoff = opgrid1.yscl/2.0f;
+
+	opgrid2.panel = &oppanel;
+	opgrid2.xscl = opgrid1.xscl*1.76f;
+	opgrid2.yscl = opgrid2.xscl;
+	opgrid2.xoff = opgrid1.xscl*44.5f;
+	opgrid2.yoff = opgrid1.panel->surf->h*2.4f/143.0f;
+
+	iopanel.surf = mustloadimg("../art/io_panel.png");
+	iogrid.panel = &iopanel;
+	iogrid.xscl = iogrid.panel->surf->w/44.0f;
+	iogrid.yscl = iogrid.panel->surf->h/28.0f;
+
+	indpanel1.surf = mustloadimg("../art/ind_panel1.png");
+	indgrid1.panel = &indpanel1;
+	indgrid1.xscl = indgrid1.panel->surf->w*5.0f/77.0f;
+	indgrid1.yscl = indgrid1.panel->surf->h/12.0f;
+
+	indpanel2.surf = mustloadimg("../art/ind_panel2.png");
+	indgrid2.panel = &indpanel2;
+	indgrid2.xscl = indgrid2.panel->surf->w/44.0f;
+	indgrid2.yscl = indgrid2.panel->surf->h/11.0f;
+
+	extrapanel.surf = mustloadimg("../art/extra_panel.png");
+	extragrid = indgrid1;
+	extragrid.panel = &extrapanel;
+
+	findlayout(&w, &h);
+
+	screen = SDL_SetVideoMode(w, h, 32, SDL_DOUBLEBUF);
+	if(screen == nil)
+		err("%s", SDL_GetError());
+
+	e = switches;
+	data_sw = e; e += 36;
+	ma_sw = e; e += 18;
+	misc_sw = e; e += 4;
+
+	extra_sw = e; e += 5;
+
+	e = lamps;
+	mi_l = e; e += 36;
+	ir_l = e; e += 18;
+	ma_l = e; e += 18;
+	pc_l = e; e += 18;
+	pio_l = e; e += 7;
+	pir_l = e; e += 7;
+	pih_l = e; e += 7;
+	misc_l = e; e += 7;
+
+	mb_l = e; e += 36;
+	ar_l = e; e += 36;
+	mq_l = e; e += 36;
+	ff_l = e; e += 14*8;
+
+	iobus_l = e; e += 36;
+	cr_l = e; e += 9;
+	crbuf_l = e; e += 36;
+	ptr_l = e; e += 6;
+	ptrbuf_l = e; e += 36;
+	ptp_l = e; e += 6;
+	ptpbuf_l = e; e += 8;
+	tty_l = e; e += 7;
+	ttibuf_l = e; e += 8;
+	pr_l = e; e += 8;
+	rlr_l = e; e += 8;
+	rla_l = e; e += 8;
+
+	extra_l = e; e += 1;
+
+	pthread_create(&comthread, nil, talki2c, nil);
+
+	for(;;){
+		while(SDL_PollEvent(&ev))
+			switch(ev.type){
+			case SDL_MOUSEMOTION:
+				mmev = (SDL_MouseMotionEvent*)&ev;
+				mouse(0, mmev->state, mmev->x, mmev->y);
+				break;
+			case SDL_MOUSEBUTTONDOWN:
+			case SDL_MOUSEBUTTONUP:
+				mbev = (SDL_MouseButtonEvent*)&ev;
+				mouse(mbev->button, mbev->state, mbev->x, mbev->y);
+				break;
+			case SDL_QUIT:
+				SDL_Quit();
+				return 0;
+			}
+
+		SDL_FillRect(screen, nil, SDL_MapRGBA(screen->format, 0xe6, 0xe6, 0xe6, 0xff));
+		SDL_BlitSurface(indpanel1.surf, nil, screen, &indpanel1.pos);
+		SDL_BlitSurface(indpanel2.surf, nil, screen, &indpanel2.pos);
+		SDL_BlitSurface(extrapanel.surf, nil, screen, &extrapanel.pos);
+		SDL_BlitSurface(iopanel.surf, nil, screen, &iopanel.pos);
+		SDL_BlitSurface(oppanel.surf, nil, screen, &oppanel.pos);
+
+		for(i = 0, e = lamps; i < nelem(lamps); i++, e++)
+			drawelement(screen, e, 1);
+		for(i = 0, e = keys; i < nelem(keys); i++, e++)
+			drawelement(screen, e, 1);
+		for(i = 0, e = switches; i < nelem(switches); i++, e++)
+			drawelement(screen, e, 1);
+
+
+		SDL_Flip(screen);
+	}
+	return 0;
+}