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Forum Index > Bugs and Fixes > error in return type of a function

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Emil_halim Ziron Beta Tester (send private message) Posts: 639 Topics: 104 Location: Alex, Egypt	[1803] error in return type of a function - posted: 2015-02-27 15:33:52 try this program Code: `program PE32_CUI 'test application'; #set bits 32; #include 'platform_def.zir'; #include 'console.zir'; function absf(single n) : single { return (n >= 0) ? n : -n; } edx = absf(-200.0f); print('Number: ', [single]edx ,'\r\n'); wait_key(); ExitProcess(0);` http://www.freewebs.com/ogremagic/index.htm
Admin Site Admin (send private message) Posts: 933 Topics: 55 Location: OverHertz Studio	[1804] - posted: 2015-02-27 15:39:40 Single is an FPU type and can only be used using FPU instructions... In the future I may add some basic support for high level FPU and SSE usage. Download Ziron Get free hosting for Ziron related fan-sites and Ziron projects, contact me in private message.
Emil_halim Ziron Beta Tester (send private message) Posts: 639 Topics: 104 Location: Alex, Egypt	[1806] - posted: 2015-02-27 15:45:01 ok thanks Colin; http://www.freewebs.com/ogremagic/index.htm
0CodErr Ziron Guru (send private message) Posts: 199 Topics: 37 Location:	[1808] - posted: 2015-02-27 17:01:56 Emil_halim To implement 'Abs' of float need to use 'fabs' FPU instruction. Something like: Code: `single X; fld @X; fabs;` Also to let you know it can be implemented by other way. Find 'Abs' of float means that we just need to reset sign bit. According to http://en.wikipedia.org/wiki/Single-precision_floating-point_format#IEEE_754_single-precision_binary_floating-point_format:_binary32 it need to reset 31-th bit. Like this: Code: `X &= 0x7FFFFFFF;` Also, Emil_halim, could you answer on my Private Message?
Emil_halim Ziron Beta Tester (send private message) Posts: 639 Topics: 104 Location: Alex, Egypt	[1810] - posted: 2015-02-27 18:41:15 thank you very much http://www.freewebs.com/ogremagic/index.htm

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