TirNaNog | Routines |
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Used by the routines at Vector_Main and UpdateKeyboardInput.
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KeyboardScan | 76F8 | LD HL,KeyStatesLast | Scan through all key states and store in memory as bit flags. | |
76FB | LD E,$80 | |||
76FD | LD BC,$7FFE | |||
KeyboardScan_0 | 7700 | IN D,(C) | ||
7702 | LD (HL),D | |||
7703 | AND A | |||
7704 | RR E | |||
7706 | RET Z | |||
7707 | DEC HL | |||
7708 | LD A,B | |||
7709 | ADD A,E | |||
770A | LD B,A | |||
770B | JR KeyboardScan_0 |
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