Mercurial > projects > ldc
annotate druntime/src/compiler/ldc/llmath.d @ 1458:e0b2d67cfe7c
Added druntime (this should be removed once it works).
author | Robert Clipsham <robert@octarineparrot.com> |
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date | Tue, 02 Jun 2009 17:43:06 +0100 |
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1458
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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1 /** |
e0b2d67cfe7c
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2 * Support for 64-bit longs. |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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3 * |
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4 * Copyright: Copyright Digital Mars 1993 - 2009. |
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5 * License: <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>. |
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6 * Authors: Walter Bright, Sean Kelly |
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parents:
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7 * |
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8 * Copyright Digital Mars 1993 - 2009. |
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9 * Distributed under the Boost Software License, Version 1.0. |
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10 * (See accompanying file LICENSE_1_0.txt or copy at |
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11 * http://www.boost.org/LICENSE_1_0.txt) |
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12 */ |
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13 module rt.llmath; |
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14 |
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15 extern (C): |
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16 |
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17 |
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18 /*************************************** |
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19 * Unsigned long divide. |
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20 * Input: |
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21 * [EDX,EAX],[ECX,EBX] |
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22 * Output: |
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23 * [EDX,EAX] = [EDX,EAX] / [ECX,EBX] |
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24 * [ECX,EBX] = [EDX,EAX] % [ECX,EBX] |
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25 */ |
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26 |
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27 void __ULDIV__() |
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28 { |
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29 asm |
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30 { |
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31 naked ; |
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32 test ECX,ECX ; |
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33 jz uldiv ; |
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34 |
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35 // if ECX > EDX, then quotient is 0 and remainder is [EDX,EAX] |
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36 cmp ECX,EDX ; |
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37 ja quo0 ; |
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38 |
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39 test ECX,ECX ; |
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40 js Lleft ; |
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41 |
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42 /* We have n>d, and know that n/d will fit in 32 bits. |
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43 * d will be left justified if we shift it left s bits. |
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44 * [d1,d0] <<= s |
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45 * [n2,n1,n0] = [n1,n0] << s |
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46 * |
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47 * Use one divide, by this reasoning: |
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48 * ([n2,n1]<<32 + n0)/(d1<<32 + d0) |
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49 * becomes: |
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50 * ([n2,n1]<<32)/(d1<<32 + d0) + n0/(d1<<32 + d0) |
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51 * The second divide is always 0. |
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52 * Ignore the d0 in the first divide, which will yield a quotient |
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53 * that might be too high by 1 (because d1 is left justified). |
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54 * We can tell if it's too big if: |
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55 * q*[d1,d0] > [n2,n1,n0] |
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56 * which is: |
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57 * q*[d1,d0] > [[q*[d1,0]+q%[d1,0],n1,n0] |
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58 * If we subtract q*[d1,0] from both sides, we get: |
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59 * q*d0 > [[n2,n1]%d1,n0] |
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60 * So if it is too big by one, reduce q by one to q'=q-one. |
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61 * Compute remainder as: |
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62 * r = ([n1,n0] - q'*[d1,d0]) >> s |
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63 * Again, we can subtract q*[d1,0]: |
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64 * r = ([n1,n0] - q*[d1,0] - (q'*[d1,d0] - q*[d1,0])) >> s |
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65 * r = ([[n2,n1]%d1,n0] + (q*[d1,0] - (q - one)*[d1,d0])) >> s |
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66 * r = ([[n2,n1]%d1,n0] + (q*[d1,0] - [d1 *(q-one),d0*(1-q)])) >> s |
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67 * r = ([[n2,n1]%d1,n0] + [d1 *one,d0*(one-q)])) >> s |
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68 */ |
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69 |
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70 push EBP ; |
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71 push ESI ; |
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72 push EDI ; |
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73 |
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74 mov ESI,EDX ; |
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75 mov EDI,EAX ; |
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76 mov EBP,ECX ; |
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77 |
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78 bsr EAX,ECX ; // EAX is now 30..0 |
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79 xor EAX,0x1F ; // EAX is now 1..31 |
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80 mov CH,AL ; |
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81 neg EAX ; |
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82 add EAX,32 ; |
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83 mov CL,AL ; |
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84 |
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85 mov EAX,EBX ; |
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86 shr EAX,CL ; |
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87 xchg CH,CL ; |
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88 shl EBP,CL ; |
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89 or EBP,EAX ; |
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90 shl EBX,CL ; |
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91 |
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92 mov EDX,ESI ; |
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93 xchg CH,CL ; |
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94 shr EDX,CL ; |
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95 |
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96 mov EAX,EDI ; |
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97 shr EAX,CL ; |
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98 xchg CH,CL ; |
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99 shl EDI,CL ; |
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100 shl ESI,CL ; |
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101 or EAX,ESI ; |
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102 |
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103 div EBP ; |
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104 push EBP ; |
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105 mov EBP,EAX ; |
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106 mov ESI,EDX ; |
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107 |
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108 mul EBX ; |
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109 cmp EDX,ESI ; |
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110 ja L1 ; |
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111 jb L2 ; |
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112 cmp EAX,EDI ; |
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113 jbe L2 ; |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
114 L1: dec EBP ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
115 sub EAX,EBX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
116 sbb EDX,0[ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
117 L2: |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
118 add ESP,4 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
119 sub EDI,EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
120 sbb ESI,EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
121 mov EAX,ESI ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
122 xchg CH,CL ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
123 shl EAX,CL ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
124 xchg CH,CL ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
125 shr EDI,CL ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
126 or EDI,EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
127 shr ESI,CL ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
128 mov EBX,EDI ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
129 mov ECX,ESI ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
130 mov EAX,EBP ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
131 xor EDX,EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
132 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
133 pop EDI ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
134 pop ESI ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
135 pop EBP ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
136 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
137 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
138 uldiv: test EDX,EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
139 jnz D3 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
140 // Both high words are 0, we can use the DIV instruction |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
141 div EBX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
142 mov EBX,EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
143 mov EDX,ECX ; // EDX = ECX = 0 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
144 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
145 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
146 even ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
147 D3: // Divide [EDX,EAX] by EBX |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
148 mov ECX,EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
149 mov EAX,EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
150 xor EDX,EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
151 div EBX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
152 xchg ECX,EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
153 div EBX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
154 // ECX,EAX = result |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
155 // EDX = remainder |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
156 mov EBX,EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
157 mov EDX,ECX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
158 xor ECX,ECX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
159 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
160 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
161 quo0: // Quotient is 0 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
162 // Remainder is [EDX,EAX] |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
163 mov EBX,EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
164 mov ECX,EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
165 xor EAX,EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
166 xor EDX,EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
167 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
168 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
169 Lleft: // The quotient is 0 or 1 and EDX >= ECX |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
170 cmp EDX,ECX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
171 ja quo1 ; // [EDX,EAX] > [ECX,EBX] |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
172 // EDX == ECX |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
173 cmp EAX,EBX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
174 jb quo0 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
175 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
176 quo1: // Quotient is 1 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
177 // Remainder is [EDX,EAX] - [ECX,EBX] |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
178 sub EAX,EBX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
179 sbb EDX,ECX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
180 mov EBX,EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
181 mov ECX,EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
182 mov EAX,1 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
183 xor EDX,EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
184 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
185 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
186 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
187 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
188 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
189 /*************************************** |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
190 * Signed long divide. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
191 * Input: |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
192 * [EDX,EAX],[ECX,EBX] |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
193 * Output: |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
194 * [EDX,EAX] = [EDX,EAX] / [ECX,EBX] |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
195 * [ECX,EBX] = [EDX,EAX] % [ECX,EBX] |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
196 * ESI,EDI destroyed |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
197 */ |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
198 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
199 void __LDIV__() |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
200 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
201 asm |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
202 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
203 naked ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
204 test EDX,EDX ; // [EDX,EAX] negative? |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
205 jns L10 ; // no |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
206 //neg64 EDX,EAX ; // [EDX,EAX] = -[EDX,EAX] |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
207 neg EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
208 neg EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
209 sbb EDX,0 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
210 test ECX,ECX ; // [ECX,EBX] negative? |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
211 jns L11 ; // no |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
212 //neg64 ECX,EBX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
213 neg ECX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
214 neg EBX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
215 sbb ECX,0 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
216 call __ULDIV__ ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
217 //neg64 ECX,EBX ; // remainder same sign as dividend |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
218 neg ECX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
219 neg EBX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
220 sbb ECX,0 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
221 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
222 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
223 L11: call __ULDIV__ ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
224 //neg64 ECX,EBX ; // remainder same sign as dividend |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
225 neg ECX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
226 neg EBX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
227 sbb ECX,0 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
228 //neg64 EDX,EAX ; // quotient is negative |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
229 neg EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
230 neg EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
231 sbb EDX,0 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
232 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
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changeset
|
233 |
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Added druntime (this should be removed once it works).
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|
234 L10: test ECX,ECX ; // [ECX,EBX] negative? |
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Added druntime (this should be removed once it works).
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|
235 jns L12 ; // no (all is positive) |
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Added druntime (this should be removed once it works).
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236 //neg64 ECX,EBX ; |
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Added druntime (this should be removed once it works).
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237 neg ECX ; |
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Added druntime (this should be removed once it works).
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|
238 neg EBX ; |
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Added druntime (this should be removed once it works).
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239 sbb ECX,0 ; |
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Added druntime (this should be removed once it works).
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|
240 call __ULDIV__ ; |
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Added druntime (this should be removed once it works).
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parents:
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|
241 //neg64 EDX,EAX ; // quotient is negative |
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Added druntime (this should be removed once it works).
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242 neg EDX ; |
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Added druntime (this should be removed once it works).
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243 neg EAX ; |
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Added druntime (this should be removed once it works).
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|
244 sbb EDX,0 ; |
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Added druntime (this should be removed once it works).
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|
245 ret ; |
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Added druntime (this should be removed once it works).
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|
246 |
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Added druntime (this should be removed once it works).
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|
247 L12: jmp __ULDIV__ ; |
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Added druntime (this should be removed once it works).
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|
248 } |
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Added druntime (this should be removed once it works).
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|
249 } |
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Added druntime (this should be removed once it works).
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|
250 |
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Added druntime (this should be removed once it works).
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|
251 |
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Added druntime (this should be removed once it works).
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|
252 /*************************************** |
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Added druntime (this should be removed once it works).
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|
253 * Compare [EDX,EAX] with [ECX,EBX] |
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Added druntime (this should be removed once it works).
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|
254 * Signed |
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255 * Returns result in flags |
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|
256 */ |
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257 |
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|
258 void __LCMP__() |
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259 { |
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Added druntime (this should be removed once it works).
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|
260 asm |
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Added druntime (this should be removed once it works).
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|
261 { |
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Added druntime (this should be removed once it works).
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|
262 naked ; |
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Added druntime (this should be removed once it works).
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|
263 cmp EDX,ECX ; |
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Added druntime (this should be removed once it works).
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|
264 jne C1 ; |
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Added druntime (this should be removed once it works).
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265 push EDX ; |
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Added druntime (this should be removed once it works).
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|
266 xor EDX,EDX ; |
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Added druntime (this should be removed once it works).
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|
267 cmp EAX,EBX ; |
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Added druntime (this should be removed once it works).
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268 jz C2 ; |
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Added druntime (this should be removed once it works).
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269 ja C3 ; |
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Added druntime (this should be removed once it works).
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270 dec EDX ; |
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Added druntime (this should be removed once it works).
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271 pop EDX ; |
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Added druntime (this should be removed once it works).
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|
272 ret ; |
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Added druntime (this should be removed once it works).
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|
273 |
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Added druntime (this should be removed once it works).
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|
274 C3: inc EDX ; |
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Added druntime (this should be removed once it works).
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275 C2: pop EDX ; |
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Added druntime (this should be removed once it works).
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276 C1: ret ; |
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Added druntime (this should be removed once it works).
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277 } |
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Added druntime (this should be removed once it works).
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|
278 } |
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Added druntime (this should be removed once it works).
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279 |
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Added druntime (this should be removed once it works).
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280 |
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Added druntime (this should be removed once it works).
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281 |
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282 |
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Added druntime (this should be removed once it works).
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|
283 // Convert ulong to real |
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Added druntime (this should be removed once it works).
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284 |
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Added druntime (this should be removed once it works).
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|
285 private __gshared real adjust = cast(real)0x800_0000_0000_0000 * 0x10; |
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Added druntime (this should be removed once it works).
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286 |
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Added druntime (this should be removed once it works).
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|
287 real __U64_LDBL() |
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Added druntime (this should be removed once it works).
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|
288 { |
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Added druntime (this should be removed once it works).
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|
289 version (OSX) |
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Added druntime (this should be removed once it works).
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|
290 { /* OSX version has to be concerned about 16 byte stack |
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Added druntime (this should be removed once it works).
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|
291 * alignment and the inability to reference the data segment |
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Added druntime (this should be removed once it works).
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292 * because of PIC. |
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Added druntime (this should be removed once it works).
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293 */ |
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Added druntime (this should be removed once it works).
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|
294 asm |
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Added druntime (this should be removed once it works).
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|
295 { naked ; |
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Added druntime (this should be removed once it works).
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296 push EDX ; |
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Added druntime (this should be removed once it works).
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297 push EAX ; |
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Added druntime (this should be removed once it works).
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298 and dword ptr 4[ESP], 0x7FFFFFFF ; |
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Added druntime (this should be removed once it works).
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299 fild qword ptr [ESP] ; |
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Added druntime (this should be removed once it works).
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300 test EDX,EDX ; |
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Added druntime (this should be removed once it works).
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301 jns L1 ; |
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Added druntime (this should be removed once it works).
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302 push 0x0000403e ; |
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Added druntime (this should be removed once it works).
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303 push 0x80000000 ; |
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Added druntime (this should be removed once it works).
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304 push 0 ; |
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Added druntime (this should be removed once it works).
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|
305 fld real ptr [ESP] ; // adjust |
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Added druntime (this should be removed once it works).
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|
306 add ESP,12 ; |
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Added druntime (this should be removed once it works).
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|
307 faddp ST(1), ST ; |
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Added druntime (this should be removed once it works).
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|
308 L1: ; |
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Added druntime (this should be removed once it works).
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|
309 add ESP, 8 ; |
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changeset
|
310 ret ; |
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Added druntime (this should be removed once it works).
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|
311 } |
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Added druntime (this should be removed once it works).
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|
312 } |
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Added druntime (this should be removed once it works).
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|
313 else |
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Added druntime (this should be removed once it works).
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parents:
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changeset
|
314 { |
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Added druntime (this should be removed once it works).
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changeset
|
315 asm |
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Added druntime (this should be removed once it works).
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|
316 { naked ; |
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Added druntime (this should be removed once it works).
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changeset
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317 push EDX ; |
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Added druntime (this should be removed once it works).
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changeset
|
318 push EAX ; |
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Added druntime (this should be removed once it works).
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changeset
|
319 and dword ptr 4[ESP], 0x7FFFFFFF ; |
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Added druntime (this should be removed once it works).
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changeset
|
320 fild qword ptr [ESP] ; |
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Added druntime (this should be removed once it works).
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parents:
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changeset
|
321 test EDX,EDX ; |
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Added druntime (this should be removed once it works).
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changeset
|
322 jns L1 ; |
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Added druntime (this should be removed once it works).
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changeset
|
323 fld real ptr adjust ; |
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Added druntime (this should be removed once it works).
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changeset
|
324 faddp ST(1), ST ; |
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Added druntime (this should be removed once it works).
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|
325 L1: ; |
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Added druntime (this should be removed once it works).
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changeset
|
326 add ESP, 8 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
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changeset
|
327 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
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changeset
|
328 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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|
329 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
diff
changeset
|
330 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
diff
changeset
|
331 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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changeset
|
332 // Same as __U64_LDBL, but return result as double in [EDX,EAX] |
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Added druntime (this should be removed once it works).
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parents:
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changeset
|
333 ulong __ULLNGDBL() |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
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changeset
|
334 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
diff
changeset
|
335 asm |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
diff
changeset
|
336 { naked ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
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changeset
|
337 call __U64_LDBL ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
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changeset
|
338 sub ESP,8 ; |
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Added druntime (this should be removed once it works).
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changeset
|
339 fstp double ptr [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
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changeset
|
340 pop EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
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changeset
|
341 pop EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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changeset
|
342 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
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changeset
|
343 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
diff
changeset
|
344 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
diff
changeset
|
345 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
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changeset
|
346 // Convert double to ulong |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
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changeset
|
347 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
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changeset
|
348 private __gshared short roundTo0 = 0xFBF; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
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changeset
|
349 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
diff
changeset
|
350 ulong __DBLULLNG() |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
diff
changeset
|
351 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
352 // BUG: should handle NAN's and overflows |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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changeset
|
353 version (OSX) |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
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parents:
diff
changeset
|
354 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
355 asm |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
356 { naked ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
357 push 0xFBF ; // roundTo0 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
358 push 0x0000403e ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
359 push 0x80000000 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
360 push 0 ; // adjust |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
361 push EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
362 push EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
363 fld double ptr [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
364 sub ESP,8 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
365 fld real ptr 16[ESP] ; // adjust |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
366 fcomp ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
367 fstsw AX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
368 fstcw 8[ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
369 fldcw 28[ESP] ; // roundTo0 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
370 sahf ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
371 jae L1 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
372 fld real ptr 16[ESP] ; // adjust |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
373 fsubp ST(1), ST ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
374 fistp qword ptr [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
375 pop EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
376 pop EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
377 fldcw [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
378 add ESP,24 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
379 add EDX,0x8000_0000 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
380 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
381 L1: ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
382 fistp qword ptr [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
383 pop EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
384 pop EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
385 fldcw [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
386 add ESP,24 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
387 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
388 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
389 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
390 else |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
391 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
392 asm |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
393 { naked ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
394 push EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
395 push EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
396 fld double ptr [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
397 sub ESP,8 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
398 fld real ptr adjust ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
399 fcomp ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
400 fstsw AX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
401 fstcw 8[ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
402 fldcw roundTo0 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
403 sahf ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
404 jae L1 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
405 fld real ptr adjust ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
406 fsubp ST(1), ST ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
407 fistp qword ptr [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
408 pop EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
409 pop EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
410 fldcw [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
411 add ESP,8 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
412 add EDX,0x8000_0000 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
413 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
414 L1: ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
415 fistp qword ptr [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
416 pop EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
417 pop EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
418 fldcw [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
419 add ESP,8 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
420 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
421 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
422 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
423 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
424 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
425 // Convert double in ST0 to uint |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
426 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
427 uint __DBLULNG() |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
428 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
429 // BUG: should handle NAN's and overflows |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
430 version (OSX) |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
431 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
432 asm |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
433 { naked ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
434 push 0xFBF ; // roundTo0 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
435 sub ESP,12 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
436 fstcw 8[ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
437 fldcw 12[ESP] ; // roundTo0 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
438 fistp qword ptr [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
439 fldcw 8[ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
440 pop EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
441 add ESP,12 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
442 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
443 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
444 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
445 else |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
446 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
447 asm |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
448 { naked ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
449 sub ESP,16 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
450 fstcw 8[ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
451 fldcw roundTo0 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
452 fistp qword ptr [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
453 fldcw 8[ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
454 pop EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
455 add ESP,12 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
456 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
457 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
458 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
459 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
460 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
461 // Convert real in ST0 to ulong |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
462 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
463 ulong __LDBLULLNG() |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
464 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
465 version (OSX) |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
466 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
467 asm |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
468 { naked ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
469 push 0xFBF ; // roundTo0 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
470 push 0x0000403e ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
471 push 0x80000000 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
472 push 0 ; // adjust |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
473 sub ESP,16 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
474 fld real ptr 16[ESP] ; // adjust |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
475 fcomp ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
476 fstsw AX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
477 fstcw 8[ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
478 fldcw 28[ESP] ; // roundTo0 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
479 sahf ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
480 jae L1 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
481 fld real ptr 16[ESP] ; // adjust |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
482 fsubp ST(1), ST ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
483 fistp qword ptr [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
484 pop EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
485 pop EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
486 fldcw [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
487 add ESP,24 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
488 add EDX,0x8000_0000 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
489 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
490 L1: ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
491 fistp qword ptr [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
492 pop EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
493 pop EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
494 fldcw [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
495 add ESP,24 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
496 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
497 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
498 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
499 else |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
500 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
501 asm |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
502 { naked ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
503 sub ESP,16 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
504 fld real ptr adjust ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
505 fcomp ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
506 fstsw AX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
507 fstcw 8[ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
508 fldcw roundTo0 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
509 sahf ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
510 jae L1 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
511 fld real ptr adjust ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
512 fsubp ST(1), ST ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
513 fistp qword ptr [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
514 pop EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
515 pop EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
516 fldcw [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
517 add ESP,8 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
518 add EDX,0x8000_0000 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
519 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
520 L1: ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
521 fistp qword ptr [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
522 pop EAX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
523 pop EDX ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
524 fldcw [ESP] ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
525 add ESP,8 ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
526 ret ; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
527 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
528 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
529 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
530 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
531 |