Question

Why do we set the least significant bit as part of converting a 64-bit unsigned integer to a 32-bit float on x86?

score 323 · Answer 1 · 2024-02-23T12:41:48.190000

323

Views

Why do we set the least significant bit as part of converting a 64-bit unsigned integer to a 32-bit float on x86?

Published on 23 February 2024 at 12:41

score 93 · Answer 2 · 2023-12-22T12:27:49.463000

93

Views

What is causing floating-point-to-unsigned conversion discrepancies here?

Published on 22 December 2023 at 12:27

score 133 · Answer 3 · 2023-07-30T03:54:00.393000

133

Views

6502 Wozniak and Rankin's Floating Point Routines

Published on 30 July 2023 at 03:54

score 189 · Answer 4 · 2023-03-28T17:08:15.127000

189

Views

Out-of-range floating point to integer conversion breaks in VS2022 executable when linking VS2017 or VS2019 libraries

Published on 28 March 2023 at 17:08

score 1.3k · Answer 5 · 2023-03-08T07:46:51.403000

1.3k

Views

Will int to double conversion round up, down or to nearest double?

Published on 08 March 2023 at 07:46

score 206 · Answer 6 · 2023-02-13T17:32:52.183000

206

Views

When converting from decimal to binary floating point values, is rounding used, or truncation?

Published on 13 February 2023 at 17:32

score 86 · Answer 7 · 2022-11-26T05:36:09.087000

86

Views

How can I convert a list of float values to a string of hex?

Published on 26 November 2022 at 05:36

score 195 · Answer 8 · 2022-09-29T08:29:24.620000

195

Views

Mysterious Step in a Float-to-Int Algorithm

Published on 29 September 2022 at 08:29

score 271 · Answer 9 · 2022-08-16T11:24:22.060000

271

Views

How to express float constants precisely in source code

Published on 16 August 2022 at 11:24

score 286 · Answer 10 · 2022-08-10T20:44:59.770000

286

Views

How to efficiently perform double/int128 conversions with AVX2?

Published on 10 August 2022 at 20:44

score 299 · Answer 11 · 2022-07-05T07:59:45.680000

299

Views

On uint64 to double conversion: Why is the code simpler after a shift right by 1?

Published on 05 July 2022 at 07:59

score 258 · Answer 12 · 2022-06-27T07:10:16.943000

258

Views

What happens on ARM when double to int64_t conversion overflows?

Published on 27 June 2022 at 07:10

score 440 · Answer 13 · 2022-04-19T17:09:34.587000

440

Views

Cortex-M7: What's the most efficient way to convert a 64-bit unsigned integer to a single-precision floating point number in assembler?

Published on 19 April 2022 at 17:09

score 148 · Answer 14 · 2022-02-19T08:29:34.217000

148

Views

How to find the mean and the variance in assembly from an unsigned integer into a floating-point number/decimal

Published on 19 February 2022 at 08:29

score 78 · Answer 15 · 2022-02-18T15:12:53.917000

78

Views

Why is there a difference in calculation results between literals and variables?

Published on 18 February 2022 at 15:12

score 665 · Answer 16 · 2021-12-07T10:47:32.760000

665

Views

Different behavior of double and int64_t conversion on new Apple silicon (arm64) vs. x86_64

Published on 07 December 2021 at 10:47

score 861 · Answer 17 · 2021-11-07T19:19:58.170000

861

Views

CVTTSD2SI - a truncating instruction - uses rounding with "inexact" results?

Published on 07 November 2021 at 19:19

score 409 · Answer 18 · 2021-10-09T08:29:39.283000

409

Views

Converting unsigned 64-bit integer to double gives strange assembly code

Published on 09 October 2021 at 08:29

score 277 · Answer 19 · 2021-10-04T21:07:19.297000

277

Views

Parsing fixed width numbers with boost spirit

Published on 04 October 2021 at 21:07

score 310 · Answer 20 · 2021-09-18T06:46:28.433000

310

Views

Why does GCC use "mov edi, edi" for this unsigned integer to double conversion but not for signed?

Published on 18 September 2021 at 06:46

List Question

Why do we set the least significant bit as part of converting a 64-bit unsigned integer to a 32-bit float on x86?

What is causing floating-point-to-unsigned conversion discrepancies here?

6502 Wozniak and Rankin's Floating Point Routines

Out-of-range floating point to integer conversion breaks in VS2022 executable when linking VS2017 or VS2019 libraries

Will int to double conversion round up, down or to nearest double?

When converting from decimal to binary floating point values, is rounding used, or truncation?

How can I convert a list of float values to a string of hex?

Mysterious Step in a Float-to-Int Algorithm

How to express float constants precisely in source code

How to efficiently perform double/int128 conversions with AVX2?

On uint64 to double conversion: Why is the code simpler after a shift right by 1?

What happens on ARM when double to int64_t conversion overflows?

Cortex-M7: What's the most efficient way to convert a 64-bit unsigned integer to a single-precision floating point number in assembler?

How to find the mean and the variance in assembly from an unsigned integer into a floating-point number/decimal

Why is there a difference in calculation results between literals and variables?

Different behavior of double and int64_t conversion on new Apple silicon (arm64) vs. x86_64

CVTTSD2SI - a truncating instruction - uses rounding with "inexact" results?

Converting unsigned 64-bit integer to double gives strange assembly code

Parsing fixed width numbers with boost spirit

Why does GCC use "mov edi, edi" for this unsigned integer to double conversion but not for signed?

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