MicroTESK

Getting Started with x86 » History » Revision 23

Revision 22 (Alexander Kamkin, 04/06/2017 04:32 PM) → Revision 23/87 (Alexander Kamkin, 04/06/2017 04:33 PM)

h1. Getting Started with x86 

 {{toc}} 

 h2. Prerequisite 

 MicroTESK should be installed (see [[Installation Guide]]). 

 h2. Demo Specifications 

 Specifications of the x86 (8086) instruction set architecture (ISA) can be found in @$MICROTESK_HOME/arch/demo/x86/model@. 

 Each instruction is described in nML (see [[nML Language Reference]]) by means of the following constructs (register move instruction is taken as an example): 

 ## the signature 
 <pre>op mov_r1616 (dst: GPR16, src: GPR16)</pre> 
 ## the assembly format 
 <pre>syntax = format("mov %s, %s", dst.syntax, src.syntax)</pre> 
 ## the binary encoding 
 <pre>image = format("1000101111%s%s", dst.image, src.image)</pre> 
 ## the semantics 
 <pre> 
   action = { 
     dst = src; 
     ... 
   } 
 </pre> 

 To compile the ISA model, run the following command: 
 <pre>$MICROTESK_HOME/bin/compile.sh x86.nml</pre> 

 h2. Demo Templates 

 Test templates for the x86 ISA can be found in @$MICROTESK_HOME/arch/demo/x86/templates@. 

 By now, the directory contains six demo templates: 

 {background:#f6fcff}. | @block.rb@              | shows usage of test generation the instruction blocks | 
                       | @block_random.rb@       | shows creation of the randomized instruction sequences using block constructs | 
 {background:#f6fcff}. | @euclid.rb@             | shows simulation of a test program to predict the resulting state of the CPU under test | 
                       | @random.rb@             | shows generation of the randomized test cases by using biased values, intervals, arrays and distributions | 
 {background:#f6fcff}. | @random_immediate.rb@ | shows randomization of immediate values | 
                       | @random_registers.rb@ | shows dependent instructions with random registers | 

 To run template processing use the following command: 
 <pre>$MICROTESK_HOME/bin/generate.sh x86 block.rb --code-file-prefix block --code-file-extension -v</pre> 
 When the processing is finished, files with the resulting assembly code can be found in @$MICROTESK_HOME@ 

 For more information, see MicroTESK wiki: http://forge.ispras.ru/projects/microtesk/wiki/Template_Description_Language