LISTING2.TXT
****************************************************************** * * * ASSEMBLER COURSE 68000 ON ATARI ST * * * * by The Ferocious Rabbit (from 44E) * * * * Second series * * * * Listing number 2 * * * ****************************************************************** INCLUDE "D:\START.S" MOVE.L #MESSAGE,-(SP) introductory message MOVE.W #9,-(SP) TRAP #1 ADDQ.L #6,SP TOUCHE MOVE.W #7,-(SP) waiting for a key press TRAP #1 ADDQ.L #2,SP SWAP D0 to get the scan code CMP.W #1,D0 escape? BEQ END yes so bye bye CMP.W #$3B,D0 compared to F1 BCS TOUCHE below so not valid CMP.W #$44,D0 compared to F10 BHI TOUCHE above so not valid * The key is valid ADD.W #6,D0 to get ASCII of A,B,C... MOVE.W D0,-(SP) display MOVE.W #2,-(SP) TRAP #1 ADDQ.L #4,SP BRA TOUCHE and we start over END CLR.W -(SP) TRAP #1 *--------------------------------------------------* SECTION DATA MESSAGE DC.B 27,"E","PRESS A FUNCTION KEY",13,10 DC.B "ESCAPE TO EXIT",13,10,0 SECTION BSS DS.L 256 STACK DS.L 1 END
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