AMX Mouse Guia do Utilizador descarregar pdf (Página 12)

As the Mouse is moved it generates hardware interrupts. These interrupts are used

by the ROM to update various counters. These counters are used in two modes:

1. The counters are used to hold x,y co-ordinates in the range (0-1279,0-1023

which are compatible with the graphics co-ordinate system, i.e. 0,0 is in the

bottom left corner. These co-ordinates are used by the POINTER routines, and

can be read using OSWORD 64.

Fig. 3: Example of *WINDOW and *ICON comman

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AMX Mouse Guia do Utilizador Página 12