From: Lauri Kasanen <cand@gmx.com>
Date: Mon, 14 Jun 2021 12:25:12 +0000 (+0300)
Subject: mp3_0 initial sv
X-Git-Tag: xlen-bcd~470
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8421b4036196e4c00ba84a84d29398a38465017c;p=openpower-isa.git

mp3_0 initial sv
---

diff --git a/media/audio/mp3/mp3_0_apply_window_float_basicsv.s b/media/audio/mp3/mp3_0_apply_window_float_basicsv.s
index f41bbe72..f248e1b0 100644
--- a/media/audio/mp3/mp3_0_apply_window_float_basicsv.s
+++ b/media/audio/mp3/mp3_0_apply_window_float_basicsv.s
@@ -10,9 +10,19 @@
 .set i, 8
 .set out2, 10
 
+# SV ints, so we don't have to play with the stack
+.set win2, 32
+
+# SV floats
+.set fv0, 32
+.set fv1, 40
+.set fv2, 48
+
 # floats
 .set sum, 0
 .set sum2, 1
+.set tmpsum, 2
+.set tmpsum2, 2
 
 	.machine power9
 	.abiversion 2
@@ -34,12 +44,27 @@ ff_mpadsp_apply_window_float_sv:
 	mulli 0, incr, 31
 	add out2, out, 0
 
-	# w2 = window + 31; TODO
+	# sv.setvli 0, MVL=8, VL=8
+	# sv.addi win2, win, 124
+
 	lfiwax sum, 0, 9 # zero it
 	addi p, buf, 64
-	# SUM8(MACS, sum, w, p); TODO
+
+	# SUM8(MACS, sum, w, p)
+	# sv.lfs/els fv0.v, 256(win)
+	# sv.lfs/els fv1.v, 256(p)
+	# sv.fmuls/mr sum, fv0.v, fv1.v
+
+	lfiwax tmpsum, 0, 9 # zero it
 	addi p, buf, 192
-	# SUM8(MLSS, sum, w + 32, p); TODO
+	addi win, win, 128
+	# SUM8(MLSS, sum, w + 32, p)
+	# sv.lfs/els fv0.v, 256(win)
+	# sv.lfs/els fv1.v, 256(p)
+	# sv.fmuls/mr tmpsum, fv0.v, fv1.v
+	fsubs sum, sum, tmpsum
+	subi win, win, 128
+
 	stfs sum, 0(out)
 	add out, out, incr
 	addi win, win, 4
@@ -50,12 +75,36 @@ ff_mpadsp_apply_window_float_sv:
 	li i, 4
 .Lloop:
 		lfiwax sum, 0, 9 # zero it
+		lfiwax sum2, 0, 9 # zero it
 		addi p, buf, 64
 		add p, p, i
-		# SUM8P2(sum, MACS, sum2, MLSS, w, w2, p);TODO
+
+		# SUM8P2(sum, MACS, sum2, MLSS, w, w2, p)
+		# sv.lfs/els fv0.v, 256(p)
+		# sv.lfs/els fv1.v, 256(win)
+		# sv.lfs/els fv2.v, 256(win2)
+		# sv.fmuls/mr sum, fv0.v, fv1.v
+		# sv.fmuls/mr sum2, fv0.v, fv2.v
+		fneg sum2, sum2
+
 		addi p, buf, 192
 		subf p, i, p
-		# SUM8P2(sum, MLSS, sum2, MLSS, w + 32, w2 + 32, p); TODO
+		lfiwax tmpsum, 0, 9 # zero it
+		lfiwax tmpsum2, 0, 9 # zero it
+		addi win, win, 128
+		# sv.addi win2, win2, 128
+
+		# SUM8P2(sum, MLSS, sum2, MLSS, w + 32, w2 + 32, p)
+		# sv.lfs/els fv0.v, 256(p)
+		# sv.lfs/els fv1.v, 256(win)
+		# sv.lfs/els fv2.v, 256(win2)
+		# sv.fmuls/mr tmpsum, fv0.v, fv1.v
+		# sv.fmuls/mr tmpsum2, fv0.v, fv2.v
+		fsubs sum, sum, tmpsum
+		fsubs sum2, sum2, tmpsum2
+
+		subi win, win, 128
+		# sv.subi win2, win2, 128
 
 		stfs sum, 0(out)
 		add out, out, incr
@@ -64,11 +113,18 @@ ff_mpadsp_apply_window_float_sv:
 
 		addi i, i, 4
 		addi win, win, 4
-		subi win2, win2, 4
+		# sv.subi win2, win2, 4
 	bdnz .Lloop
 
 	addi p, buf, 128
-	# SUM8(MLSS, sum, w + 32, p); TODO
+	addi win, win, 128
+	lfiwax sum, 0, 9 # zero it
+	# SUM8(MLSS, sum, w + 32, p)
+	# sv.lfs/els fv0.v, 256(win)
+	# sv.lfs/els fv1.v, 256(p)
+	# sv.fmuls/mr sum, fv0.v, fv1.v
+	fneg sum, sum
+
 	stfs sum, 0(out)
 
 	blr