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Routines |
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Used by the routine at 96A2. Returns with the zero flag reset if ENTER, 0 or the fire button on the joystick is being pressed.
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| 96C9 | LD A,($85CE) | Collect the Kempston joystick indicator from 85CE | ||
| 96CC | OR A | Is the joystick connected? | ||
| 96CD | JR Z,$96D4 | Jump if not | ||
| 96CF | IN A,($1F) | Collect input from the joystick | ||
| 96D1 | BIT 4,A | Is the fire button being pressed? | ||
| 96D3 | RET NZ | Return (with the zero flag reset) if so | ||
| 96D4 | LD BC,$AFFE | Read keys H-J-K-L-ENTER and 6-7-8-9-0 | ||
| 96D7 | IN A,(C) | |||
| 96D9 | AND $01 | Keep only bit 0 of the result (ENTER, 0) | ||
| 96DB | CP $01 | Reset the zero flag if ENTER or 0 is being pressed | ||
| 96DD | RET | |||
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