AMX Mouse Guia do Utilizador descarregar pdf (Página 17)

or in assembly language—a simple example which plots points relative to the Mouse

position:

10 .forever LDA # 64

20 LDX # block MOD 256

30 LDY # block DIV 256

40 JSR osword

50 / PL0T 69,xcord,ycord

60 LDA # 25

70 JSR oswrch

80 LDA # 69

90 JSR oswrch

100 LDX # 0

110 .loop

LDA block,X

120 JSR oswrch

130 INX

140 CPX # 4

150 BNE loop

160

JMP forever

e.g. *BR.

The function of this command is to simulate the pressing of the BREAK key. It must

be used whenever a *POINTER ON or *POINTER OFF command are used. This is in order

to reserve workspace for storing the pointer icon and mask by altering the value of the

PAGE:

If a second processor is used, the workspace is ALWAYS reserved. Therefore when

the *BREAK command is used it will have no effect except for executing any *KEY 10

routines.

Whenever *BREAK is used the break key (*KEY 10 ) should be programmed to

chain your program. For example the !BOOT file on the disc is:

*KEY 10 CHAIN "!MENU"|M

*P0INTER 0N

*BREAK

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 35 36

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AMX Mouse Guia do Utilizador Página 17