about summary refs log blame commit diff stats
path: root/examples/ex2.subx
blob: e9738d9f564d46274a312aba763ac2f0087de96d (plain) (tree)
1
2
3
4
5
6
7
8
9
                                                      
 
         

                                                        


                  
 
                  
 
      
         
                       
               
                
                    
                            
                     
 

                  
                            
# Add 1 and 1, and return the result in the exit code.
#
# To run:
#   $ ./subx translate examples/ex2.subx -o examples/ex2
#   $ ./subx run examples/ex2
# Expected result:
#   $ echo $?
#   2

== code 0x09000000

Entry:
# EBX = 1
bb/copy-to-EBX  1/imm32
# increment EBX
43/increment-EBX
# syscall(exit, EBX)
b8/copy-to-EAX  1/imm32/exit
cd/syscall  0x80/imm8

== data 0x0a000000

# . . vim:nowrap:textwidth=0