Question

C - Seemingly unsigned int being sign extended when right shift?

score 647 · Answer 1 · 2014-11-29 04:23:08

647

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C - Seemingly unsigned int being sign extended when right shift?

Published on 29 November 2014 at 04:23

score 779 · Answer 2 · 2017-09-09 23:07:05

779

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Published on 09 September 2017 at 23:07

score 3.1k · Answer 3 · 2020-10-11 06:07:01

3.1k

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Why does 2's complement sign extension work by adding copies of the sign bit?

Published on 11 October 2020 at 06:07

score 65 · Answer 4 · 2023-10-24 10:09:02

65

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Published on 24 October 2023 at 10:09

score 12.7k · Answer 5 · 2011-11-01 01:51:48

12.7k

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score 295 · Answer 6 · 2020-11-30 16:57:50

295

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score 2.3k · Answer 7 · 2020-12-09 17:26:23

2.3k

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Published on 09 December 2020 at 17:26

score 1.8k · Answer 8 · 2022-04-28 09:36:16

1.8k

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Published on 28 April 2022 at 09:36

score 1.6k · Answer 9 · 2020-08-30 06:04:39

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Published on 30 August 2020 at 06:04

score 2.4k · Answer 10 · 2018-10-04 12:02:22

2.4k

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Zero/sign-extend are no-op, why then instructions for each size type?

Published on 04 October 2018 at 12:02

score 421 · Answer 11 · 2014-01-12 16:32:43

421

Views

what is most efficient code to sign-extend large integers?

Published on 12 January 2014 at 16:32

score 437 · Answer 12 · 2014-05-28 00:45:08

437

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Shifting, types and sign extensions in C

Published on 28 May 2014 at 00:45

score 102 · Answer 13 · 2022-11-09 15:49:58

102

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MOVSXD operation when operand sizes are equal

Published on 09 November 2022 at 15:49

score 68 · Answer 14 · 2018-05-28 13:58:52

68

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score 2.3k · Answer 15 · 2014-07-31 10:31:02

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Published on 31 July 2014 at 10:31

score 1.6k · Answer 16 · 2019-10-25 16:28:30

1.6k

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Published on 25 October 2019 at 16:28

score 854 · Answer 17 · 2019-10-30 00:50:47

854

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Published on 30 October 2019 at 00:50

score 250 · Answer 18 · 2021-10-07 13:02:35

250

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Assembly movsbq instruction

Published on 07 October 2021 at 13:02

score 154 · Answer 19 · 2018-01-04 16:26:08

154

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Convert from base 10 to an arbitrary radix with proper sign extend

Published on 04 January 2018 at 16:26

score 891 · Answer 20 · 2021-06-30 22:06:44

891

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Sign extend a register to 64-bit (set all bits = sign bit) in Thumb mode

Published on 30 June 2021 at 22:06

List Question

C - Seemingly unsigned int being sign extended when right shift?

Sign Extension Implementation in C

Why does 2's complement sign extension work by adding copies of the sign bit?

Wasm instruction ambiguity for sign-extension?

Assembly Language: cbw

How to convert int8 to int16 in avr

Confusion about MIPS I-type instruction sign extend

What do the `uxtx` and `sxtx` extensions mean for 32-bit AArch64 `adds` instruction?

x86 assembly - mov and movzx from dword to qword?

Zero/sign-extend are no-op, why then instructions for each size type?

what is most efficient code to sign-extend large integers?

Shifting, types and sign extensions in C

MOVSXD operation when operand sizes are equal

A compilation problems in VS2015

Which real use cases exist for arithmetic right bit shifting?

What does movsbq and this add line do?

How to isolate byte and word array elements in a 64-bit register

Assembly movsbq instruction

Convert from base 10 to an arbitrary radix with proper sign extend

Sign extend a register to 64-bit (set all bits = sign bit) in Thumb mode

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