Read Pixel; Write Character As Tty; Get Video State - Husky MP2500 Manual

Read pixel

Entry
Exit
Description

Write character as TTY

Entry
Exit
Description

Get video state

Entry
188
AL dictates the pixel colour as follows. If bit 7 is 0, bits
0 and 1 specify the foreground colour; if bit 7 is 1, the
colour specified by bits 0 and 1 is XORed with the
current pixel colour.
AH=0DH
CX=column
DX=row
AL=pixel colour
Reads the colour of the specified pixel, in graphics
modes.
Remember that MP2500 can only display two colours
(black and white), but supports the full range of pixel
colours. For example, if a pixel were written with the
colour blue, it would be displayed as black, but its
colour would be read back as blue.
AH=0EH
AL=character
BL=colour (graphics mode only)
BH=page
Returns nothing
Writes the character specified by AL, with the colour
specified by BL, advancing the cursor afterwards.
AH=0FH
H MP2500 System Developer's Guide
USKY