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Turn on new cannon position Jump to nokey to continue get cannon hor. pos. check if at right edge and Jump to nokey if yes turn on new target position compare target and bullet turn on new cannon position Jump to nokey to continue get cannon hor. pos. check if at right edge and Jump to nokey if yes turn off old cannon position move cannon one pos. right turn on new cannon position Jump to nokey to oontinue check IT bullet already fired and Jump to nokey If yes turn on bullet fired flag starting...

Pb5

Line PBS sees a logic one 3lgnal when the switch is in the up position. PB7 Right Difficulty switch. Line PB7 sees a logic one signal when the switch is in the up position. 6.2.3 Keyboard Controller Connections Each button on a keyboard controller Is an electrical switch that is connected between one line from I O port A and one of the display controller registers. All the buttons in the same row (e.g. 1, 2, and 3) are connected to the same I O port line. All the...

3j37

Copyright 1981 by Coaputer Magic Inc. Computer Fundamentals Using Your MagiCard Description of 6502 Microprocessor MagiCard Keyboard Functions MagiCard Memory Map Details of Video Computer System Features MagiCard Monitor Subroutines Hexadecimal-Decimal Conversion Table MagiCard Character Set 6502 Instruction Summary Life a Sample Program Construction and Connecting a Cassette Interface Congratulations on purchasing our MagiCard 6502 computer adapter card for your video game I First some words...