Routines
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9944: Routine at 9944
Used by the routine at GameEntry.
9944 LD A,$FE Read from the keyboard;
Port Number Bit
0 1 2 3 4
FE SHIFT Z X C V
9946 IN A,($FE)
9948 AND %00000100 Keep only bit 2.
994A JP NZ,TitleSelectInput If "X" hasn't been pressed, jump back to TitleSelectInput.
994D LD A,$FB Read from the keyboard;
Port Number Bit
0 1 2 3 4
FB Q W E R T
994F IN A,($FE)
9951 AND %00000100 Keep only bit 2.
9953 JP NZ,TitleSelectInput If "E" hasn't been pressed, jump back to TitleSelectInput.
9956 LD A,$04 Write 04 to BC4D.
9958 LD ($BC4D),A
995B LD HL,$01F4 HL=01F4 (loop delay).
995E LD DE,$004B DE=4B (passes).
9961 CALL $03B5 Call BEEPER.
9964 JP TitleSelectInput Jump to TitleSelectInput.
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