mirror of https://github.com/cc65/cc65.git
22 lines
512 B
ArmAsm
22 lines
512 B
ArmAsm
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; Miloslaw Smyk, 2024
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; CC65 runtime: Scale the primary register by 128, unsigned
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.export shlax7, aslax7
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aslax7:
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shlax7: ; XXXXXXXL AAAAAAAl
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tay
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txa
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lsr ; XXXXXXXL -> 0XXXXXXX, L->C
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tya
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ror ; AAAAAAAl -> LAAAAAAA, l->C
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tax
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lda #$00 ; LAAAAAAA 00000000
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ror ; LAAAAAAA l0000000
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rts
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; 10 bytes, 16 cycles + rts
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