Mercurial > projects > dstress
diff run/a/asm_pfrcpit2_01_A.d @ 1288:61d7e32e70a8
partial inline asm review
author | thomask |
---|---|
date | Wed, 27 Dec 2006 11:59:19 +0000 |
parents | 03c97933de98 |
children | 7a397590d6e0 |
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--- a/run/a/asm_pfrcpit2_01_A.d Wed Dec 27 11:59:05 2006 +0000 +++ b/run/a/asm_pfrcpit2_01_A.d Wed Dec 27 11:59:19 2006 +0000 @@ -16,15 +16,34 @@ int main(){ have3DNow!()(); - const float[2] A = [2.0f, -0.5f]; - float[2] c; + float* a = (new float[2]).ptr; + a[0] = 2.0f; + a[1] = -0.5f; + + float* c = (new float[2]).ptr; - asm{ - pfrcp MM0, A; - pfrcpit1 MM0, A; - pfrcpit2 MM0, A; - movq c, MM0; - emms; + static if(size_t.sizeof == 4){ + asm{ + mov EAX, a; + pfrcp MM0, [EAX]; + pfrcpit1 MM0, [EAX]; + pfrcpit2 MM0, [EAX]; + mov EAX, c; + movq [EAX], MM0; + emms; + } + }else static if(size_t.sizeof == 8){ + asm{ + mov RAX, a; + pfrcp MM0, [RAX]; + pfrcpit1 MM0, [RAX]; + pfrcpit2 MM0, [RAX]; + mov RAX, c; + movq [RAX], MM0; + emms; + } + }else{ + static assert(0, "unhandled pointer size"); } c[0] -= 2.000061f;