[MPlayer-dev-eng] [PATCH] clarify useless //input regs comment in vf_fspp.c

[Reimar Döffinger]

Hello,
does attached patch look okay to you?

Greetings,
Reimar Döffinger
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diff --git a/libmpcodecs/vf_fspp.c b/libmpcodecs/vf_fspp.c
index 419817d..83d9e62 100644
--- a/libmpcodecs/vf_fspp.c
+++ b/libmpcodecs/vf_fspp.c
@@ -1589,7 +1589,8 @@ static void column_fidct_mmx(int16_t* thr_adr,  DCTELEM *data,  DCTELEM *output,
 	"jnz 1b                \n\t"
 	"5:                      \n\t"
 
-	: "+S"(data), "+D"(output), "+c"(cnt)// input regs
+// + constraints are inputs that are modified and thus cannot be in the input section
+	: "+S"(data), "+D"(output), "+c"(cnt)
 	: "d"(thr_adr)
 	: "%"REG_a
 	);
@@ -1857,7 +1858,8 @@ static void row_idct_mmx (DCTELEM* workspace,
 	"dec %%"REG_c"                   \n\t"
 	"jnz 1b                  \n\t"
 
-	: "+S"(workspace), "+D"(output_adr), "+c"(cnt) //input regs
+// + constraints are inputs that are modified and thus cannot be in the input section
+	: "+S"(workspace), "+D"(output_adr), "+c"(cnt)
 	: "a"(output_stride*sizeof(short))
 	: "%"REG_d
 	);
@@ -2100,8 +2102,9 @@ static void row_fdct_mmx(DCTELEM *data,  const uint8_t *pixels,  int line_size,
 	"add $"DCTSIZE_S"*2*4, %%"REG_D"      \n\t" //4 rows    
 	"dec %%"REG_c"                   \n\t"
 	"jnz 6b                  \n\t"
-
-	: "+S"(pixels), "+D"(data), "+c"(cnt) //input regs
+ 
+// + constraints are inputs that are modified and thus cannot be in the input section
+	: "+S"(pixels), "+D"(data), "+c"(cnt)
 	: "a"(line_size)
 	: "%"REG_d);
 }