163 lines
11 KiB
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163 lines
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Int 10/AX=0580h - VIDEO - PCjr, Tandy 1000 - GET CRT/CPU PAGE REGISTERS -
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AX = 0580h
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Return: BH = CRT page register
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BL = CPU page register
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Notes: the CPU page determines which 16K block of the first 128K of physical
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memory will be mapped at B800h by the hardware
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the CRT page determines the start address of the memory used by the
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video controller
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SeeAlso: AH=05hSET CRT/CPU
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<h2>Int 10/AX=0580h
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<h3><font color=#C00040>VIDEO - PCjr, Tandy 1000 - GET CRT/CPU PAGE REGISTERS</font></h3>
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<PRE>
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AX = 0580h<br>
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<p><b>Return:</b><br>BH = CRT page register
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BL = CPU page register
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</PRE>
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<p><b>Notes:</b>
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The CPU page determines which 16K block of the first 128K of physical
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memory will be mapped at B800h by the hardware.
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The CRT page determines the start address of the memory used by the
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video controller
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<p><b>See Also:</b>
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<a href="rb-0095.htm" tppabs="http://www.ctyme.com/intr/rb-0095.htm">AH=05h"SET CRT/CPU"</a>
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