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Routines |
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Used by the routine at 54942.
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| 55030 | LD C,254 | IN 63486 reads the half row 1 to 5 | ||||||
| 55032 | LD B,247 | ... | ||||||
| 55034 | IN A,(C) | Read keyboard/joystick | ||||||
| 55036 | BIT 4,A | If joystick moved left ("5" key pressed)... | ||||||
| 55038 | CALL Z,55100 | ...store a LEFT input from control device | ||||||
| 55041 | LD B,239 | IN 61438 reads the half row O to 6 | ||||||
| 55043 | IN A,(C) | Read keyboard/joystick | ||||||
| 55045 | BIT 2,A | If joystick moved right ("8" key pressed)... | ||||||
| 55047 | CALL Z,55103 | ...store a RIGHT input from control device | ||||||
| 55050 | BIT 4,A | If joystick moved down ("6" key pressed)... | ||||||
| 55052 | CALL Z,55109 | ...store a DOWN input from control device | ||||||
| 55055 | BIT 3,A | If joystick moved up ("7" key pressed)... | ||||||
| 55057 | CALL Z,55106 | ...store an UP input from control device | ||||||
| 55060 | BIT 0,A | If fire button pressed ("0" key pressed)... | ||||||
| 55062 | CALL Z,55112 | ...store a FIRE input from control device | ||||||
| 55065 | LD A,(HL) | Return stored joystick movement in A | ||||||
| 55066 | RET | Return | ||||||
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