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17 lines
243 B
ArmAsm
17 lines
243 B
ArmAsm
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; Ullrich von Bassewitz, 06.08.1998
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; CC65 runtime: Scale the primary register
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;
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.export asrax1
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.importzp tmp1
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asrax1: stx tmp1
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cpx #$80 ; Put bit 7 into carry
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ror tmp1
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ror a
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ldx tmp1
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rts
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