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generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2025-01-03 23:42:26 +0000

lass="LineNr"> 98 var <a href='405screen.mu.html#L9'>screen</a>/esi: (addr <a href='405screen.mu.html#L9'>screen</a>) <- address screen-on-stack 99 <a href='405screen.mu.html#L30'>initialize-screen</a> <a href='405screen.mu.html#L9'>screen</a>, 5, 0x20 # 32 columns should be more than enough 100 var n: int 101 copy-to n, 0xff800000 102 var negative-infinity/xmm0: float <- reinterpret n 103 <a href='409print-float-hex.mu.html#L118'>print-float-hex</a> <a href='405screen.mu.html#L9'>screen</a>, negative-infinity 104 <a href='405screen.mu.html#L623'>check-screen-row</a> <a href='405screen.mu.html#L9'>screen</a>, 1, "-Inf ", "F - test-print-float-hex-negative-infinity" 105 } 106 107 fn <a href='409print-float-hex.mu.html#L107'>test-print-float-hex-not-a-number</a> { 108 var screen-on-stack: <a href='405screen.mu.html#L9'>screen</a> 109 var <a href='405screen.mu.html#L9'>screen</a>/esi: (addr <a href='405screen.mu.html#L9'>screen</a>) <- address screen-on-stack 110 <a href='405screen.mu.html#L30'>initialize-screen</a> <a href='405screen.mu.html#L9'>screen</a>, 5, 0x20 # 32 columns should be more than enough 111 var n: int 112 copy-to n, 0xffffffff # exponent must be all 1's, and mantissa must be non-zero 113 var negative-infinity/xmm0: float <- reinterpret n 114 <a href='409print-float-hex.mu.html#L118'>print-float-hex</a> <a href='405screen.mu.html#L9'>screen</a>, negative-infinity 115 <a href='405screen.mu.html#L623'>check-screen-row</a> <a href='405screen.mu.html#L9'>screen</a>, 1, "NaN ", "F - test-print-float-hex-not-a-number" 116 } 117 118 fn <a href='409print-float-hex.mu.html#L118'>print-float-hex</a> <a href='405screen.mu.html#L9'>screen</a>: (addr <a href='405screen.mu.html#L9'>screen</a>), n: float { 119 # - special names 120 var bits/eax: int <- reinterpret n 121 compare bits, 0 122 { 123 break-if-!= 124 <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, "0" 125 return 126 } 127 compare bits, 0x80000000 128 { 129 break-if-!= 130 <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, "-0" 131 return 132 } 133 compare bits, 0x7f800000 134 { 135 break-if-!= 136 <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, "Inf" 137 return 138 } 139 compare bits, 0xff800000 140 { 141 break-if-!= 142 <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, "-Inf" 143 return 144 } 145 var exponent/ecx: int <- copy bits 146 exponent <- shift-right 0x17 # 23 bits of mantissa 147 exponent <- and 0xff 148 exponent <- subtract 0x7f 149 compare exponent, 0x80 150 { 151 break-if-!= 152 <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, "NaN" 153 return 154 } 155 # - regular numbers 156 var sign/edx: int <- copy bits 157 sign <- shift-right 0x1f 158 { 159 compare sign, 1 160 break-if-!= 161 <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, "-" 162 } 163 $print-float-hex:leading-digit: { 164 # check for subnormal numbers 165 compare exponent, -0x7f 166 { 167 break-if-!= 168 <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, "0." 169 exponent <- increment 170 break $print-float-hex:leading-digit 171 } 172 # normal numbers 173 <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, "1." 174 } 175 var mantissa/ebx: int <- copy bits 176 mantissa <- and 0x7fffff 177 mantissa <- shift-left 1 # pad to whole nibbles 178 <a href='405screen.mu.html#L458'>print-int32-hex-bits</a> <a href='405screen.mu.html#L9'>screen</a>, mantissa, 0x18 179 # print exponent 180 <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, "P" 181 compare exponent, 0 182 { 183 break-if->= 184 <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, "-" 185 } 186 var exp-magnitude/eax: int <- <a href='406int32.mu.html#L31'>abs</a> exponent 187 <a href='405screen.mu.html#L458'>print-int32-hex-bits</a> <a href='405screen.mu.html#L9'>screen</a>, exp-magnitude, 8 188 } 189 190 #? fn main -> _/ebx: int { 191 #? run-tests 192 #? #? test-print-float-hex-negative-zero 193 #? #? print-int32-hex 0, 0 194 #? #? test-print-float-hex-normal 195 #? return 0 196 #? } </pre> </body> </html>