flat assembler
Message board for the users of flat assembler.
  
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| demerzel 03 Dec 2018, 18:51 when I talk about instruction I should maybe say mnemonic instead | |||
|  03 Dec 2018, 18:51 | 
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| ProMiNick 03 Dec 2018, 20:21 This instruction exist on fasm ? - all of existed instruction mnemonics (for x86? x86-64) are realized in fasm, so no one of them you havent to do via data definition directives, like it could be in other assemblers.
 All existed fasm instructions - are same as all existed intel(AMD) instructions. Fasm has no specifiic processor instructions. But everithing what not existed in fasm could be realized via macros - but macros are not instructions. macros could represent one instruction and be synonim of instruction. Or they could have numerous of instructions or even no one. | |||
|  03 Dec 2018, 20:21 | 
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| demerzel 03 Dec 2018, 20:35 Thanks you ProMiNick, this helps me lot    i found the mnemonics for x86 here : https://fr.wikipedia.org/wiki/Jeu_d%27instructions_x86 | |||
|  03 Dec 2018, 20:35 | 
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| bitRAKE 04 Dec 2018, 01:04 In the Intel manuals they are grouped in Jcc.
 http://www.felixcloutier.com/x86/Jcc.html Other's have had the same problem locating them. https://stackoverflow.com/questions/39567942/what-is-the-jcc-instruction-in-x86 | |||
|  04 Dec 2018, 01:04 | 
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| Tomasz Grysztar 04 Dec 2018, 07:56 The cc conditions for Jcc are also listed in the fasm's manual: https://flatassembler.net/docs.php?article=manual#_2.1
 In general, however, the Intel manuals should be the first source of information. Refer to fasm's manual only to find out if it uses syntax variants different from the Intel standard. | |||
|  04 Dec 2018, 07:56 | 
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| Mikl___ 04 Dec 2018, 12:00 Hi, demerzel!
 https://net.cs.uni-bonn.de/fileadmin/user_upload/plohmann/x86_opcode_structure_and_instruction_overview.pdf 
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|  04 Dec 2018, 12:00 | 
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| Picnic 05 Dec 2018, 09:12 Is there something similar for arm architecture? | |||
|  05 Dec 2018, 09:12 | 
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| Mikl___ 06 Dec 2018, 05:29 Hi! 
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|  06 Dec 2018, 05:29 | 
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| Tomasz Grysztar 06 Dec 2018, 09:43 Mikl___: thank you! This schematic is kind of beautiful when you know what's going on. | |||
|  06 Dec 2018, 09:43 | 
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| Mikl___ 06 Dec 2018, 12:11 To make it clearer, consider the command code jns == 79h
 Code: |opcode|condition code --------+------+-+-+-+----- mnemonic| jcc |a|b|c|invert --------+------+-+-+-+----- jns | 0111 |1|0|0| 1 | |||
|  06 Dec 2018, 12:11 | 
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