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Akujin



Joined: 11 Oct 2011
Posts: 26
Location: Exile
Akujin
FasmScript?

Open file _sample.asc (any text editor)
study/modify the script, save and run fasmscript.exe.

Test & Feedback please!


Description:
Download
Filename: fasmscript.rar
Filesize: 56.24 KB
Downloaded: 164 Time(s)


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Last edited by Akujin on 14 Oct 2011, 16:04; edited 1 time in total
Post 14 Oct 2011, 04:59
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wht36



Joined: 18 Sep 2005
Posts: 106
wht36
Hi, the program ran, asked for & displayed input, and closed fine....
Post 14 Oct 2011, 09:48
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AsmGuru62



Joined: 28 Jan 2004
Posts: 1419
Location: Toronto, Canada
AsmGuru62
What this program does?
Post 14 Oct 2011, 14:22
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Akujin



Joined: 11 Oct 2011
Posts: 26
Location: Exile
Akujin
AsmGuru62 wrote:
What this program does?


almost everything...

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Post 14 Oct 2011, 16:10
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Akujin



Joined: 11 Oct 2011
Posts: 26
Location: Exile
Akujin
Pseudo Ops:
Console Display:
PINT ; Print INT value in eax 32bit signed
PUNS ; Print UNSigned value in eax 32bit
PSTR ; Print STRing pointed by eax
PFLT ; Print FLoaT in eax 32bit single
Console Prompt:
ASKI ; Promp for a number (INT), prompt string address in eax, on exit eax=value entered
hex display todo!
force unsigned check removed!
skip header import table removed!

Pseudo Functions:
WinAPI:
MSGB ; Same as Windows API MessageBox
LDLL ; Same as Windows API LoadLibrary
GPRA ; Same as Windows API GetProcAddress
FDLL ; Same as Windows API FreeLibrary

Extension Vars:
hwnd ; Console Window Handle

Execution of script code start at start: label
Execution end on End Of File or RET opcode

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Post 14 Oct 2011, 22:09
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AsmGuru62



Joined: 28 Jan 2004
Posts: 1419
Location: Toronto, Canada
AsmGuru62
Cool!
Post 14 Oct 2011, 22:49
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Madis731



Joined: 25 Sep 2003
Posts: 2140
Location: Estonia
Madis731
Yes, a start of something cool. I don't know what ... yet Smile
Post 17 Oct 2011, 07:37
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Akujin



Joined: 11 Oct 2011
Posts: 26
Location: Exile
Akujin
Twisted Evil Qbasic code stolen from me239:
http://board.flatassembler.net/topic.php?t=13515

Code:
; Original code (c) me239
ALIGN 4      ;!
alert1    db 13,10,"ALERT! Tank spotted ",0
alert2   db "meters away",0  
alert3        db 13,10,"You have 3 shell types: ",13,10,\
  " Short range: 50 m/s and 255 meter max",13,10,\
     " Medium range: 100 m/s 1,020 meter max",13,10,\
     " Long range: 200 m/s 4,081 meter max",13,10,0 
input1  db "Short range(1), Medium range(2), Long range(3): ",0
input2        db "Launch angle (Integer degree only): ",0 
hitT      db 13,10,"HIT! Enemy tank has been destroyed!",0
missT     db 13,10,"MISS! The enemy tank has shot AND killed you ",0
distT   db 13,10,"Distance: ",0
timeT  db 13,10,"Time: ",0 
return    db 13,10,0

ALIGN 4
rdist      dd 0
veloc   dd 0
angle   dd 0
t       dd 0
d       dd 0
vtable  dd 50.0,100.0,200.0
d2r      dd 0.017453292519943295769236907685
cn2      dd 0.204081632653061224489795918366
hsize    dd 10.0

ALIGN 16
start:
       rdtsc
       shr eax,21
  mov [rdist],eax
;mov [rdist],109
;mov [rdist],1698

        mov eax,alert1
      PSTR 
       mov eax,[rdist]
     PINT
        mov eax,alert2
      PSTR 
       mov eax,alert3
      PSTR 
       mov eax,return
      PSTR

askRange:
   mov eax,input1
      ASKI
        test eax,eax
        jz askRange
 cmp eax,3
   ja askRange
 mov eax,[vtable+eax*4-4]
    mov [veloc],eax
     mov eax,return
      PSTR

askAngle:
   mov eax,input2
      ASKI            ;need ASKF
  test eax,eax
        jz askAngle
 cmp eax,180
 ja askAngle
 mov [angle],eax
;mov [angle],24
;mov [angle],12           

lazyFPUcoder:
   fild [angle]
        fmul [d2r]
  fsincos         ;RTFIM
      mov eax,missT
       fxch
        fmul [veloc]
        fmul [cn2]
  fst [t] ;!
  fmul [veloc]
        fmulp; [t]      ;!
  fstp [d]

        fild [rdist]    ;jxx safe
   fsub [hsize]
        fld [d] 
    fcomip st,st1
       fstp st
     jb miss

 fild [rdist]    ;jxx safe
   fadd [hsize]
        fld [d] 
    fcomip st,st1
       fstp st
     ja miss
hit:
 mov eax,hitT
miss:
   PSTR
        mov eax,distT
       PSTR
        mov eax,[d]
 PFLT
        mov eax,timeT
       PSTR
        mov eax,[t]
 PFLT
        mov eax,return
      PSTR
ret
;cli
;hlt
    


Usage:
Copy and paste this code over the _sample.asc file included in the .rar of the first post, save and run fasmscript.exe, for info about the game please refer to the link above

Random number not fully tested.
Sadly my program only accept Integers as input Sad
so testing the second picture in the original thread fails!

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Post 17 Oct 2011, 10:30
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TmX



Joined: 02 Mar 2006
Posts: 822
Location: Jakarta, Indonesia
TmX
Cool. A kind of interpreter..
BTW is the source code available?
Post 18 Oct 2011, 09:48
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Akujin



Joined: 11 Oct 2011
Posts: 26
Location: Exile
Akujin
Source code for fasm.dll at http://board.flatassembler.net/topic.php?t=6239

The fasmscript.exe its just an host for fasm.dll with some function to display data.

The Trick
At run time the file _sample.asc is loaded in memory...
A VirtualAlloc call prepare a Buffer to store the assembled code...
A Prologue file is made in memory...
Code:
format binary
use32
org 00000000h
jmp start
    

org directive is filled with the address of the VirtualAlloc Buffer...
An Epilogue file is made in memory...
Code:
ret ;  Shocked 
    

Prologue+ _sample.asc+Epilogue are send to fasm.dll for assembly
and the resulting bytecode! stored in the VirtualAlloc Buffer....
Host app call Buffer and execution start...

Easy! Twisted Evil

In fasmscript.exe a bug allow to see my Prologue code Cool ...

Regards.

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Post 18 Oct 2011, 18:19
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