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Annotation of 43BSD/contrib/X/man/Xvs100.8c, revision 1.1.1.1

1.1       root        1: .TH XVS100 8 "26 August 1985" "X Version 10"
                      2: .SH NAME
                      3: Xvs100 - X window system VS100 implementation notes
                      4: .SH DESCRIPTION
                      5: .PP
                      6: The VS100 implementation of X was the first, and is complete.
                      7: Many of the X output operations are in fact modeled on the interface provided
                      8: by the VS100 firmware.
                      9: The VS100 is a monochrome display, 864 bits high and 1088 bits wide.
                     10: The firmware we are currently using is version #235.
                     11: .PP
                     12: Cursors can be any size up to 64x64.
                     13: Tiles can only be 16x16 in size.
                     14: Brushes can be any size, but the current firmware draws wide lines about an
                     15: order of magnitude slower than 1x1 lines.
                     16: Off-screen storage is limited to that provided in the VS100 itself; no attempt
                     17: is made to use DMA access to VAX memory for fonts and such or to dynamically
                     18: shuffle data back and forth.
                     19: .PP
                     20: The keyboard is controlled by the VS100 firmware.  Unfortunately, with the
                     21: current firmware, the keyboard only gives up transitions for the Control,
                     22: Shift, Lock, and Meta keys, so chord applications won't work.
                     23: .PP
                     24: At system boot, for some reason the first three attempts to down load the
                     25: firmware fail.  Thus, a VS100 won't become active until about 45 seconds
                     26: after other terminal lines activate.
                     27: Power-cycling a VS100 will cause the X server to restart.  The down
                     28: problem doesn't occur in this case, but typically a
                     29: 3 minute TCP CLOSE_WAIT will occur.
                     30: .PP
                     31: .SH "SEE ALSO"
                     32: X(8c), X(1)
                     33: .br
                     34: `ddX - Device Dependent X Interface'
                     35: .SH AUTHOR
                     36: .br
                     37: Copyright (c) 1985, by Massachusetts Institute of Technology.

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