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Cecil Ward's user avatar
Cecil Ward's user avatar
Cecil Ward's user avatar
Cecil Ward
  • Member for 9 years, 11 months
  • Last seen more than a month ago
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About

Old assembler and C programmer (various assemblers). Now retired due to long-term illness. Worked at Psion for many years. Living in the Isle of Skye, off the west coast of Scotland. Currently a fan of the D programming language (DLang - see http://dlang.org), and writing x86-64 assembly language. Keep meaning to learn ARM64.

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Top posts

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8
In x86-64 asm: is there a way of optimising two adjacent 32-bit stores / writes to memory if the source operands are two immediate values?
Jul 19, 2020
6
How do I declare a const pointer to non-const / mutable data in D?
Jul 6, 2016
5
Instruction reordering in x86 / x64 asm - performance optimisation with latest CPUs
Aug 30, 2017
3
Preventing line breaks around CSS ::after image content
Jul 15, 2025
3
x86 rep prefix with a count of zero: what happens?
Jun 1, 2023
3
In inline asm within C, on x86/x86-64, is the value of the direction flag guaranteed to be cld?
May 30, 2023
3
assert()s, optimisation and an assume() directive in D
Feb 9, 2017
3
Is the exact layout of D structs defined?
Aug 19, 2016
2
For accessibility, do I need to use lang="" as well as xml:lang="" attributes in XML (XHTML5)?
Jan 27, 2025
2
How much does a mispredicted conditional branch cost?
Aug 4, 2023

Top network posts

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56
When did compilers start generating optimized code that runs faster than an average programmer's assembly code?
6
At the Massacre at Hardhome, in Game of Thrones, why did the slain immediately become wights?