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annotate run/a/asm_pfrcpit1_01_B.d @ 1288:61d7e32e70a8

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partial inline asm review
author thomask
date Wed, 27 Dec 2006 11:59:19 +0000
parents 03c97933de98
children 7a397590d6e0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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9acd7becc753 added 3DNow! tests - all of them are broken, see http://d.puremagic.com/bugzilla/show_bug.cgi?id=115
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1 // $HeadURL$
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2 // $Date$
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3 // $Author$
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4
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5 module dstress.run.a.asm_pfrcpit1_01_B;
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6
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7 version(D_InlineAsm_X86){
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8 version = runTest;
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9 }else version(D_InlineAsm_X86_64){
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10 version = runTest;
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11 }
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12
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13 version(runTest){
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14 import addon.cpuinfo;
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15
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16 int main(){
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17 haveMMX!()();
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18 have3DNow!()();
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19
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20 float* a = (new float[2]).ptr;
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21 a[0] = 2.0f;
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22 a[1] = -0.5f;
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23
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24 float* c = (new float[2]).ptr;
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25
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26 static if(size_t.sizeof == 4){
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27 asm{
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28 mov EAX, a;
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29 movq MM1, [EAX];
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30 pfrcp MM0, MM1;
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31 pfrcpit1 MM0, MM1;
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32 mov EAX, c;
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33 movq [EAX], MM0;
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34 emms;
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35 }
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36 }else static if(size_t.sizeof == 8){
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37 asm{
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38 mov RAX, a;
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39 movq MM1, [RAX];
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40 pfrcp MM0, MM1;
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41 pfrcpit1 MM0, MM1;
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42 mov RAX, c;
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43 movq [RAX], MM0;
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44 emms;
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45 }
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46 }else{
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47 static assert(0, "unhandled pointer size");
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48 }
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49
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50 c[0] -= 1.007812f;
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51 if(c[0] < 0.0f){
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52 c[0] = -c[0];
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53 }
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54 if(c[0] > float.epsilon * (1 << 8)){
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55 assert(0);
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56 }
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57
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58 c[1] -= 1.007812;
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59 if(c[1] < 0.0f){
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60 c[1] = -c[1];
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61 }
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62 if(c[1] > float.epsilon * (1 << 8)){
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63 assert(0);
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64 }
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65
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66 return 0;
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67 }
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68 }else{
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69 pragma(msg, "DSTRESS{XPASS}: no inline ASM support");
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70 static assert(0);
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71 }