🚀 go-pugleaf

i got so terrible problems last half of year i was like unable to concentrate on coding, still not feeling well to be honest but i think maybe i can back for a while 

the idea is to maybe upbuild (build it up) my assembler (so called organic assembler) so maybe i will show that project and maybe some more specific questions/topics will appear 

vurrent version to download: 

http://minddetonator.htw.pl/org-asm.zip 

(for windows32, i mean it runs as win32 console tool and assembles win32 executables) 

i added some example pice of asm code in it 
as sorta example how to use it 



main: 

 call test_1M_loop 
 call test_1M_loop 
 call test_1M_loop 
 call test_1M_loop 
 call test_1M_loop 
 call test_1M_loop 
 call test_1M_loop 
 call test_1M_loop 
 call test_1M_loop 
 call test_1M_loop 
 call test_1M_loop 
 call test_1M_loop 
 call test_1M_loop 
 call test_1M_loop 


 ret 

//////////////////////// 



test_1M_loop: 
  nop 
  nop 
  mov esi 1000000 
  rdtsc 
  push edx 
  push eax 
 loop: 
//================== 

  nop 
  nop 
  nop 
//  mov ebx esi 
//  add ebx 19 
//  mov edx 1000 
//  mov eax 1000 
//  div edax ebx 

//================= 
  dec esi 
  jne loop 
  rdtsc 
  pop ebx 
  pop ecx 
  sub eax ebx 
  sbb edx ecx 
  call print_eax 
  ret 

//////////////////////////// 


inner_test: 

  ret 

////////////////////////////// 

  @ note_eax: "\x0d\x0a rdtsc eax = %d \x00" 

print_eax: 
  push eax 
  push note_eax 
  call msvcrt.printf 
  pop eax 
  pop eax 
  ret 



this pice of asm makes loop of 1M rolls and 
measures how many cycles it takes by rtdsc command 

this itself may be interesting for someone who would like to toy a bit and measure what amount of cycles given assembly comands and routines take on your cpu 

for example gien loop with 3 nops gives that result (here on my old cpu) 



 rdtsc eax = 2000103 

 rdtsc eax = 2000117 

 rdtsc eax = 2000082 

 rdtsc eax = 2000082 

 rdtsc eax = 2000082 

 rdtsc eax = 2000082 

 rdtsc eax = 2000082 

 rdtsc eax = 2000082 

 rdtsc eax = 2000082 

 rdtsc eax = 2000082 

 rdtsc eax = 2000082 

 rdtsc eax = 2042404 

 rdtsc eax = 2415266 

 rdtsc eax = 2266271 

if i delete that 3 nops it gives 



 rdtsc eax = 1000125 

 rdtsc eax = 1000111 

 rdtsc eax = 1000083 

 rdtsc eax = 1000076 

 rdtsc eax = 1000076 

 rdtsc eax = 1000083 

 rdtsc eax = 1000083 

 rdtsc eax = 1000076 

 rdtsc eax = 1000076 

 rdtsc eax = 1000076 

 rdtsc eax = 1000076 

 rdtsc eax = 1000076 

 rdtsc eax = 1000076 

 rdtsc eax = 1000076 

so it shows that 1 nop takes only like 0.33 cycle, and that dec esi and jne jump itself take only one cycle 

if someone is interested how fast things execute that kind of tests may be usefull 
(it could be done in more popular assemblers but the entry level of my own may be easier, for me its easier for sure) 

things can be tested easily, for example if i want to test rand() i just put a line 

  call msvcrt.rand 

instead of that 3 nops and i get the result 



 rdtsc eax = 28016989 

 rdtsc eax = 28000112 

 rdtsc eax = 28043897 

 rdtsc eax = 28001589 

 rdtsc eax = 28001498 

 rdtsc eax = 28105077 

 rdtsc eax = 28000161 

 rdtsc eax = 28001904 

 rdtsc eax = 28016415 

 rdtsc eax = 28024360 

 rdtsc eax = 28000084 

 rdtsc eax = 28012999 

 rdtsc eax = 28026061 

 rdtsc eax = 28002849 

so its 27 cycles..and so on 


if someone would like to toy with my assembler i could improve it (i not typed all possiblemnemonic register combinations yet as it seems to be posiibly thousands of them) 

i need yet also make some improve,ments in syntax of that asm... im quite satisfied as to cyntax of code (which i a bit refreshed if compared to intel by rejecting periods and turning square brackets into round brackets but i quess i still need to work on  data format and also repair some holes here