annotate playercode/resample.S @ 22:d9f79436e0af default tip

Makefile Add ranlib for the library
author darius
date Fri, 24 Apr 1998 08:05:26 +0000
parents d14fd386d182
children
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1 /* GCC port of mixing code by Barubary (barubary@dal.net)
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2 This should work on both Linux and DJGPP... I have confirmed that
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3 self-modifying code works just fine in Linux without causing signals.
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4 This may change in the future, so I recommend that the Linux MikMod
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5 developers look out for new kernel releases. The critical thing is that
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6 CS.base = DS.base in Linux, which makes DS an alias for CS, and that the
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7 code pages remain writable. */
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8
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9 .data /* self-modifying code... keep in data segment */
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10
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11 #define _AsmStereoNormal AsmStereoNormal
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12 #define _AsmStereoSurround AsmStereoSurround
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13 #define _AsmMonoNormal AsmMonoNormal
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14 #define _AsmMix32To16Surround AsmMix32To16Surround
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15 #define _AsmMix32To8Surround AsmMix32To8Surround
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16 #define _bitshift bitshift
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17 #define _lvoltab lvoltab
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18 #define _rvoltab rvoltab
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19
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20 .globl _AsmStereoNormal
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21 .globl _AsmStereoSurround
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22 .globl _AsmMonoNormal
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23 .globl _AsmMix32To16Surround
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24 .globl _AsmMix32To8Surround
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25
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26
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27 #define STUBSTART \
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28 pushl %eax; \
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29 pushl %ebx; \
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30 pushl %ecx; \
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31 pushl %edx; \
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32 pushl %esi; \
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33 pushl %edi; \
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34 pushl %ebp
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35
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36 #define STUBEND \
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37 popl %ebp; \
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38 popl %edi; \
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39 popl %esi; \
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40 popl %edx; \
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41 popl %ecx; \
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42 popl %ebx; \
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43 popl %eax
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44
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45 #define SS2F(index,lab1,lab2,lab3,lab4) \
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46 movb (%edx),%al; \
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47 .byte 0x081,0x0c3; \
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48 lab1: .int 0; \
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49 .byte 0x081,0x0d2; \
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50 lab2: .int 0; \
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51 movl index*8(%edi),%esi; \
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52 .byte 0x08b,0x0c,0x085; \
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53 lab3: .int 0; \
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54 movl index*8+4(%edi),%ebp; \
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55 addl %ecx,%esi; \
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56 .byte 0x08b,0x0c,0x085; \
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57 lab4: .int 0; \
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58 movl %esi,index*8(%edi); \
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59 addl %ecx,%ebp
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60
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61 #define SS2M(index,lab1,lab2,lab3,lab4) \
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62 movb (%edx),%al; \
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63 movl %ebp,index*8-4(%edi); \
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64 .byte 0x081,0x0c3; \
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65 lab1: .int 0; \
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66 .byte 0x081,0x0d2; \
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67 lab2: .int 0; \
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68 movl index*8(%edi),%esi; \
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69 .byte 0x08b,0x0c,0x085; \
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70 lab3: .int 0; \
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71 movl index*8+4(%edi),%ebp; \
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72 addl %ecx,%esi; \
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73 .byte 0x08b,0x0c,0x085; \
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74 lab4: .int 0; \
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75 movl %esi,index*8(%edi); \
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76 addl %ecx,%ebp
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77
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78 #define SS3F(index,lab1,lab2,lab3) \
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79 movb (%edx),%al; \
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80 .byte 0x081,0x0c3; \
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81 lab1: .int 0; \
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82 .byte 0x081,0x0d2; \
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83 lab2: .int 0; \
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84 movl index*8(%edi),%esi; \
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85 .byte 0x08b,0x0c,0x085; \
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86 lab3: .int 0; \
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87 movl index*8+4(%edi),%ebp; \
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88 addl %ecx,%esi; \
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89 subl %ecx,%ebp; \
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90 movl %esi,index*8(%edi); \
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91
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92 #define SS3M(index,lab1,lab2,lab3) \
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93 movb (%edx),%al; \
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94 movl %ebp,index*8-4(%edi); \
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95 .byte 0x081,0x0c3; \
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96 lab1: .int 0; \
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97 .byte 0x081,0x0d2; \
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98 lab2: .int 0; \
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99 movl index*8(%edi),%esi; \
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100 .byte 0x08b,0x0c,0x085; \
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101 lab3: .int 0; \
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102 movl index*8+4(%edi),%ebp; \
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103 addl %ecx,%esi; \
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104 subl %ecx,%ebp; \
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105 movl %esi,index*8(%edi); \
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106
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107 #define SS2L(index) \
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108 movl %ebp,index*8-4(%edi)
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109
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110 #define SM2F(index,lab1,lab2,lab3) \
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111 movb (%edx),%al; \
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112 .byte 0x081,0x0c3; \
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113 lab1: .int 0; \
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114 .byte 0x081,0x0d2; \
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115 lab2: .int 0; \
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116 movl index*4(%edi),%esi; \
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117 .byte 0x08b,0x0c,0x085; \
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118 lab3: .int 0
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119
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120 #define SM2M(index,lab1,lab2,lab3) \
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121 movb (%edx),%al; \
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122 addl %ecx,%esi; \
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123 .byte 0x081,0x0c3; \
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124 lab1: .int 0; \
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125 movl %esi,index*4-4(%edi); \
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126 .byte 0x081,0x0d2; \
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127 lab2: .int 0; \
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128 movl index*4(%edi),%esi; \
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129 .byte 0x08b,0x0c,0x085; \
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130 lab3: .int 0
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131
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132 #define SM2L(index) \
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133 addl %ecx,%esi; \
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134 movl %esi,index*4-4(%edi)
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135
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136 _AsmStereoNormal:
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137 STUBSTART
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138 movl 32(%esp),%esi /* get src */
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139 movl 36(%esp),%edi /* get dst */
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140 movl 40(%esp),%ebx /* get index */
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141 movl 44(%esp),%ecx /* get increment */
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142 movl 48(%esp),%ebp /* get todo */
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143 movl %ecx,%eax
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144 movl %ebx,%edx
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145 sarl $31,%eax
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146 sarl $31,%edx
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147 shldl $21,%ecx,%eax /* convert to 32:32 */
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148 shll $21,%ecx
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149 shldl $21,%ebx,%edx /* convert to 32:32 */
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150 shll $21,%ebx
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151 addl %esi,%edx
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152 movl %eax,shi1
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153 movl %eax,shi2
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154 movl %eax,shi3
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155 movl %eax,shi4
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156 movl %eax,shi5
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157 movl _lvoltab,%eax
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158 movl %ecx,slo1
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159 movl %ecx,slo2
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160 movl %ecx,slo3
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161 movl %ecx,slo4
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162 movl %ecx,slo5
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163 movl %eax,sltab1
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164 movl %eax,sltab2
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165 movl %eax,sltab3
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166 movl %eax,sltab4
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167 movl %eax,sltab5
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168 movl _rvoltab,%eax
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169 pushl %ebp
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170 movl %eax,srtab1
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171 movl %eax,srtab2
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172 movl %eax,srtab3
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173 movl %eax,srtab4
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174 movl %eax,srtab5
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175 xorl %eax,%eax
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176 jmp s1 /* flush code cache */
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diff changeset
177 s1:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
178 shrl $2,%ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
179 jz sskip16
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
180 pushl %ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
181 sagain16:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
182 SS2F(0,slo1,shi1,sltab1,srtab1)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
183 SS2M(1,slo2,shi2,sltab2,srtab2)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
184 SS2M(2,slo3,shi3,sltab3,srtab3)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
185 SS2M(3,slo4,shi4,sltab4,srtab4)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
186 SS2L(4)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
187 addl $32,%edi
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
188 decl (%esp)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
189 jnz sagain16
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
190 popl %ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
191 sskip16:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
192 popl %ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
193 andl $3,%ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
194 jz sskip1
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
195 pushl %ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
196 sagain1:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
197 SS2F(0,slo5,shi5,sltab5,srtab5)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
198 SS2L(1)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
199 addl $8,%edi
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
200 decl (%esp)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
201 jnz sagain1
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
202 popl %ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
203 sskip1:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
204 STUBEND
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
205 ret
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
206
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
207
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
208 _AsmStereoSurround:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
209 STUBSTART
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
210 movl 32(%esp),%esi /* get src */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
211 movl 36(%esp),%edi /* get dst */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
212 movl 40(%esp),%ebx /* get index */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
213 movl 44(%esp),%ecx /* get increment */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
214 movl 48(%esp),%ebp /* get todo */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
215 movl %ecx,%eax
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
216 movl %ebx,%edx
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
217 sarl $31,%eax
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
218 sarl $31,%edx
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
219 shldl $21,%ecx,%eax /* convert to 32:32 */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
220 shll $21,%ecx
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
221 shldl $21,%ebx,%edx /* convert to 32:32 */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
222 shll $21,%ebx
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
223 addl %esi,%edx
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
224 movl %eax,s2hi1
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
225 movl %eax,s2hi2
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
226 movl %eax,s2hi3
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
227 movl %eax,s2hi4
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
228 movl %eax,s2hi5
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
229 movl _lvoltab,%eax
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
230 movl %ecx,s2lo1
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
231 movl %ecx,s2lo2
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
232 movl %ecx,s2lo3
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
233 movl %ecx,s2lo4
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
234 movl %ecx,s2lo5
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
235 movl %eax,s2ltab1
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
236 movl %eax,s2ltab2
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
237 movl %eax,s2ltab3
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
238 movl %eax,s2ltab4
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
239 movl %eax,s2ltab5
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
240 pushl %ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
241 xorl %eax,%eax
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
242 jmp s3 /* flush code cache */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
243 s3:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
244 shrl $2,%ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
245 jz s2skip16
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
246 pushl %ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
247 s2again16:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
248 SS3F(0,s2lo1,s2hi1,s2ltab1)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
249 SS3M(1,s2lo2,s2hi2,s2ltab2)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
250 SS3M(2,s2lo3,s2hi3,s2ltab3)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
251 SS3M(3,s2lo4,s2hi4,s2ltab4)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
252 SS2L(4)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
253 addl $32,%edi
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
254 decl (%esp)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
255 jnz s2again16
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
256 popl %ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
257 s2skip16:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
258 popl %ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
259 andl $3,%ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
260 jz s2skip1
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
261 pushl %ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
262 s2again1:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
263 SS3F(0,s2lo5,s2hi5,s2ltab5)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
264 SS2L(1)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
265 addl $8,%edi
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
266 decl (%esp)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
267 jnz s2again1
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
268 popl %ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
269 s2skip1:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
270 STUBEND
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
271 ret
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
272
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
273
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
274 _AsmMonoNormal:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
275 STUBSTART
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
276 movl 32(%esp),%esi /* get src */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
277 movl 36(%esp),%edi /* get dst */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
278 movl 40(%esp),%ebx /* get index */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
279 movl 44(%esp),%ecx /* get increment */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
280 movl 48(%esp),%ebp /* get todo */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
281 movl %ecx,%eax
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
282 movl %ebx,%edx
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
283 sarl $31,%eax
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
284 sarl $31,%edx
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
285 shldl $21,%ecx,%eax /* convert to 32:32 */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
286 shll $21,%ecx
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
287 shldl $21,%ebx,%edx /* convert to 32:32 */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
288 shll $21,%ebx
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
289 addl %esi,%edx
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
290 movl %eax,mhi1
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
291 movl %eax,mhi2
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
292 movl %eax,mhi3
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
293 movl %eax,mhi4
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
294 movl %eax,mhi5
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
295 movl _lvoltab,%eax
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
296 movl %ecx,mlo1
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
297 movl %ecx,mlo2
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
298 movl %ecx,mlo3
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
299 movl %ecx,mlo4
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
300 movl %ecx,mlo5
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
301 movl %eax,mltab1
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
302 movl %eax,mltab2
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
303 movl %eax,mltab3
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
304 movl %eax,mltab4
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
305 movl %eax,mltab5
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
306 xorl %eax,%eax
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
307
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
308 jmp m1 /* flush code cache */
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
309 m1:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
310 pushl %ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
311 shrl $2,%ebp
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
312 jz mskip16
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
313 magain16:
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
314 SM2F(0,mlo1,mhi1,mltab1)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
315 SM2M(1,mlo2,mhi2,mltab2)
d14fd386d182 Initial entry of mikmod into the CVS tree.
darius
parents:
diff changeset
316