?? rlr16.dsp
字號:
.module do_RLR16;
.entry RLR16;
RLR16:
i0=h#0407; { h#0407 = bitrev(^tmp+8) when ^tmp=h#3800 }
i1=i0;
m0=2048; { bitrev modifier = 16384/N = 2048 }
ena bit_rev;
ay0=dm(i0,m0);
si=dm(i0,m0);
sr=ashift si (hi), dm(i1,m0)=ay0;
ar=sr1-ay0, si=dm(i0,m0);
af=-ar, dm(i1,m0)=ar;
cntr=5;
do rlrx16 until ce;
sr=ashift si (hi);
ar=sr1+af, si=dm(i0,m0);
rlrx16: af=-ar, dm(i1,m0)=ar;
sr=ashift si (hi);
ar=sr1+af;
dm(i1,m0)=ar;
dis bit_rev;
rts;
.endmod;
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