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comparison run/a/asm_pavgb_01_A.d @ 1285:229e630d4b1a

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partuial inline asm review
author thomask
date Tue, 26 Dec 2006 14:21:37 +0000
parents f9084d3862e8
children
comparison
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1284:96e7be832c35 1285:229e630d4b1a
14 import addon.cpuinfo; 14 import addon.cpuinfo;
15 15
16 int main(){ 16 int main(){
17 haveSSE!()(); 17 haveSSE!()();
18 18
19 byte[] a = new byte[8]; 19 byte* a = (new byte[8]).ptr;
20 a[0] = 1; 20 a[0] = 1;
21 a[1] = 2; 21 a[1] = 2;
22 a[2] = 3; 22 a[2] = 3;
23 a[3] = 4; 23 a[3] = 4;
24 a[4] = 5; 24 a[4] = 5;
25 a[5] = 6; 25 a[5] = 6;
26 a[6] = 7; 26 a[6] = 7;
27 a[7] = 8; 27 a[7] = 8;
28 28
29 byte[] b = new byte[8]; 29 byte* b = (new byte[8]).ptr;
30 b[0] = 5; 30 b[0] = 5;
31 b[1] = 2; 31 b[1] = 2;
32 b[2] = 1; 32 b[2] = 1;
33 b[3] = 8; 33 b[3] = 8;
34 b[4] = 15; 34 b[4] = 15;
44 c[4] = 10; 44 c[4] = 10;
45 c[5] = 5; 45 c[5] = 5;
46 c[6] = 4; 46 c[6] = 4;
47 c[7] = 6; 47 c[7] = 6;
48 48
49 byte[] d = new byte[8]; 49 byte* d = (new byte[8]).ptr;
50 50
51 asm{ 51 static if(size_t.sizeof == 4){
52 movq MM0, a; 52 asm{
53 movq MM1, b; 53 mov EAX, a;
54 pavgb MM0, MM1; 54 movq MM0, [EAX];
55 movq d, MM0; 55 mov EAX, b;
56 emms; 56 movq MM1, [EAX];
57 pavgb MM0, MM1;
58 mov EAX, d;
59 movq [EAX], MM0;
60 emms;
61 }
62 }else static if(size_t.sizeof == 8){
63 asm{
64 mov RAX, a;
65 movq MM0, [RAX];
66 mov RAX, b;
67 movq MM1, [RAX];
68 pavgb MM0, MM1;
69 mov RAX, d;
70 movq [RAX], MM0;
71 emms;
72 }
73 }else{
74 static assert(0, "unhandled pointer size");
57 } 75 }
58 76
59 for(size_t i = 0; i < c.length; i++){ 77 for(size_t i = 0; i < c.length; i++){
60 if(d[i] != c[i]){ 78 if(d[i] != c[i]){
61 assert(0); 79 assert(0);