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30 lines
394 B
ArmAsm
30 lines
394 B
ArmAsm
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; Ullrich von Bassewitz, 23.09.1998
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;
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; unsigned readjoy (unsigned char joy);
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;
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.export _readjoy
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.include "plus4.inc"
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.proc _readjoy
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ldy #$FA ; Load index for joystick #1
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tax ; Test joystick number
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beq L1
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ldy #$FB ; Load index for joystick #2
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L1: sei
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sty TED_KBD
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lda TED_KBD
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cli
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ldx #$00 ; Clear high byte
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and #$1F
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eor #$1F
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rts
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.endproc
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