Routines
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37980: Routine at 945C
Used by the routines at 36102, 37798, 41208, 41386, 41765, 41921, 41983, 42215, 46828, 46981 and 47036.
37980 LD A,126 Read from the keyboard;
Port Number Bit
0 1 2 3 4
126 SPACE FULL-STOP M N B
Shift Z X C V
37982 OUT (253),A
37984 IN A,(254)
37986 CPL Flip the bits.
37987 AND %00000010 Keep only bit 1.
37989 RET Return.
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