How to use align-data-move SSE in Delphi XE3 ?
Delphi XE3 compiles 64-bit fast floating point code based on SSE2 (Streaming SIMD Extensions). The SSE instruction data move for 4-byte singles such as movaps requires data address to be 16-byte …
Category: compiler
Copy Function in Delphi XE3
April 22, 2013
64 bit, assembly language, bug fixes, code, compiler, delphi, implementation, interpreter / compiler, optimization, programming languages, technical, tricks, windows
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I came across a very strange problem when I tried to use Copy function in Delphi XE3. The Copy function behaves differently for string when compiled into 32bit and 64bit using Delphi …
Access Violation Bug Migrating to 64-bit
April 12, 2013
bug fixes, compiler, data types, delphi, interpreter / compiler, programming languages, windows
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I have posted a question on stackoverflow.com and it got answered within a few minutes. Then I realized how stupid this bug was. I have a Delphi project that was …
Optimized ABS function in Assembly
In mathematics, the absolute function is defined as: This function is simple, and quite in popular usages. The absolute value is considered as one of the fundamental operations in …
Delphi XE3, {$EXCESSPRECISION OFF}
April 3, 2013
assembly language, code, compiler, delphi, floating point, programming languages, technical
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In , the performance comparison over floating point optimization regarding to different configurations for Delphi 2007 and XE3 is presented. We can see that Delphi 2007 produces quite nice …