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cpu mcf5307 ; MAC but no EMAC
page 0
proc macro name
section name
public name
name equ *
endm
endp macro
rts
endsection
endm
proc fft16
and.l #$ffff0000,d2
move.l d2,ACC
msacl.w d0.u,d4.u,<<,(a3),d5
msacl.w d0.l,d5.u,<<,(a1),d7
move.l ACC,d3
asr.l d1,d3
move.w d3,(a0)+
add.l d2,d2
asr.l d1,d2
sub.l d3,d2
move.w d2,(a2)+
and.l #$ffff0000,d7
move.l d7,ACC
macl.w d0.l,d4.u,<<,(a0),d2
msacl.w d0.u,d5.u,<<,(a2),d4
move.l ACC,d3
asr.l d1,d3
move.w d3,(a1)+
add.l d7,d7
asr.l d1,d7
sub.l d3,d7
move.w d7,(a3)+
endp
proc fft32
movem.l (a4),d0-d1
next_bf: move.l d2,ACC
msacl.l d0,d4,(a3),d5
msacl.l d1,d5,(a1),a6
move.l ACC,d3
move.l d3,(a0)+
add.l d2,d2
sub.l d3,d2
move.l d2,(a2)+
move.l a6,ACC
macl.l d1,d4,(a0),d2
msacl.l d0,d5,(a2),d4
move.l ACC,d3
move.l d3,(a1)+
adda.l a6,a6
suba.l d3,a6
move.l a6,(a3)+
adda.l d6,a4
addq.l #4,d7
cmp.l a5,d7
bcs.b next_bf
endp
proc fir16
.FORk3: cmp.l d0,d2
bcc .ENDFORk3
move.l -(a1),d3
mac.w d3.u,d4.l,<<
mac.w d3.l,d4.u,<<,(a3)+,d4
addq.l #2,d2
bra .FORk3
.ENDFORk3:
endp
proc fir32
.FORk3: move.l -(a1),d3
mac.w d3.u,d4.u,<<,(a3)+,d4,ACC0
addq.l #1,d2
cmp.l d0, d2
bcs .FORk3
endp
proc iir16
.FORk3: cmp.l d0,d2
bcc .ENDFORk3
move.l -(a1),d3
mac.w d3.l,d4.u,<<
move.l -(a5),d3 ; was mac.w in original?
mac.w d3.l,d4.l,<<,(a3)+,d4
addq.l #1,d2
bra .FORk3
.ENDFORk3:
endp
proc iir32
.FORk1: cmp.l d1,d2
bcc .ENDFORk1
move.l -(a1),d3
mac.w d3.u,d4.u,<<,(a3)+,d4,ACC0
move.l -(a5),d3 ; was mac.w in original?
mac.w d3.u,d4.u,<<,(a3)+,d4,ACC0
addq.l #1,d2
bra .FORk1
.ENDFORk1:
endp