1 files changed, 67 insertions, 0 deletions
diff --git a/pkg/images/tv/iis/iism70/iisoffset.x b/pkg/images/tv/iis/iism70/iisoffset.x
new file mode 100644
index 00000000..d7f618dc
--- /dev/null
+++ b/pkg/images/tv/iis/iism70/iisoffset.x
@@ -0,0 +1,67 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include <mach.h>
+include "iis.h"
+include "../lib/ids.h"
+
+define	LEN_CONST	3
+
+# IISOFFSET -- Read and Write output bias registers
+
+procedure iisoffset (rw, color, n, data)
+
+short	rw			# read or write
+short	color[ARB]		# color
+short	n			# number of data values
+short	data[ARB]		# the data
+
+int	command,len,x
+short	const[3]
+int	i,j
+
+include "iis.com"
+
+begin
+	command = IREAD+VRETRACE
+	x = 8 + ADVXONTC
+	len = LEN_CONST
+	call iishdr(command, len, SUMPROC+COMMAND, x, 0, 0, 0)
+	call iisio (const, len * SZB_CHAR)
+	if ( rw == IDS_WRITE) {
+	    command = IWRITE+VRETRACE
+	    j = 1
+	    for ( i =1 ; color[i] != IDS_EOD ; i = i + 1) {
+		switch(color[i]) {
+		    case IDS_RED:
+			const[3] = data[j]
+
+		    case IDS_GREEN:
+			const[2] = data[j]
+
+		    case IDS_BLUE:
+			const[1] = data[j]
+		}
+		if ( j < n)
+		    j = j + 1
+	    }
+	    call iishdr (command, len, SUMPROC+COMMAND, x, 0, 0, 0)
+	    call iisio (const, len * SZB_CHAR)
+	} else {
+	    j = 1
+	    for ( i = 1 ; i <= n ; i = i + 1 ) {
+		switch(color[j]) {
+		    case IDS_RED:
+			data[i] = const[3]
+
+		    case IDS_GREEN:
+			data[i] = const[2]
+
+		    case IDS_BLUE:
+			data[i] = const[1]
+		}
+		j = j+1
+		if ( color[j] == IDS_EOD )
+		    j = j - 1
+	    }
+	}
+end