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B2DC: Set Game Options
Used by the routine at GameMenu.
Sets the game option for the Sinclair Joystick controller.
Game_Options_Sinclair B2DC LD A,$02 Write 02 to Game_Options.
B2DE LD ($B2DB),A
B2E1 RET Return.
Sets the game option for the Kempston Joystick controller.
Game_Options_Kempston B2E2 LD A,$01 Write 01 to Game_Options.
B2E4 LD ($B2DB),A
B2E7 RET Return.
Sets the game option for keyboard controls.
Game_Options_Keyboard B2E8 XOR A Write 00 to Game_Options.
B2E9 LD ($B2DB),A
B2EC RET Return.
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