frranck / asm2c Goto Github PK

...set to /Users/franck/dev/mrboom_pi/tasm2cpp/asm2c.xcodeproj when obtained through master as of 2017-09-25.

I would like to have some program on my 64 bit Windows 7 that takes the current C Runtime Library files that has ASM implementations and get a version in C so I can understand them more (I dont fully get ASM).

Here is an example ASM Code from the CRT that is some stack checking that I need in C:

        page    ,132
        title   chkstk - C stack checking routine

.xlist
        include vcruntime.inc
.list

; size of a page of memory

_PAGESIZE_      equ     1000h


        CODESEG

page

public  _alloca_probe

_chkstk proc

_alloca_probe    =  _chkstk

        push    ecx

; Calculate new TOS.

        lea     ecx, [esp] + 8 - 4      ; TOS before entering function + size for ret value
        sub     ecx, eax                ; new TOS

; Handle allocation size that results in wraparound.
; Wraparound will result in StackOverflow exception.

        sbb     eax, eax                ; 0 if CF==0, ~0 if CF==1
        not     eax                     ; ~0 if TOS did not wrapped around, 0 otherwise
        and     ecx, eax                ; set to 0 if wraparound

        mov     eax, esp                ; current TOS
        and     eax, not ( _PAGESIZE_ - 1) ; Round down to current page boundary

cs10:
        cmp     ecx, eax                ; Is new TOS
    bnd jb      short cs20              ; in probed page?
        mov     eax, ecx                ; yes.
        pop     ecx
        xchg    esp, eax                ; update esp
        mov     eax, dword ptr [eax]    ; get return address
        mov     dword ptr [esp], eax    ; and put it at new TOS
    bnd ret

; Find next lower page and probe
cs20:
        sub     eax, _PAGESIZE_         ; decrease by PAGESIZE
        test    dword ptr [eax],eax     ; probe page.
        jmp     short cs10

_chkstk endp

        end

So would this work on ASM code like this for my needs?

swift build

Apple Swift version 5.2.4 (swiftlang-1103.0.32.9 clang-1103.0.32.53)
Target: x86_64-apple-darwin19.5.0
Fetching https://github.com/crossroadlabs/Regex.git
Fetching https://github.com/frranck/Expression
error: because no versions of Expression match the requirement 0.13.2..<1.0.0 and root depends on Expression 0.13.2..<1.0.0, version solving failed.
'asm2c' /Users/appveyor/projects/asm2c: error: Source files for target asm2cTests should be located under 'Tests/asm2cTests', or a custom sources path can be set with the 'path' property in Package.swift

???

Hi,
( i have Starred this project).
as far as i understand this tool can handle upto 32bit x86 code ?
can/does it also support AMD64 based Assembly into ANSI C ?

i need to convert "Go" into "C" , or "Go" into "C++" , i have posted some solutions here (in SO) & mentioned this project there too , & also here . Please upvote my Q+A both in SO (or vote "Converting/transpiling..." topic here to Undelete), if you want to . ( Google Crimes^{1, 2, 3, 4, 5, 6}. Problems in "Go"^{1, 2, 3, 4, 5, 6, 7}. )

Output of below commands are in "Main.s" file , which has Golang/Google based"Assembly" , not general/standard or GNU/GAS-Assembly, not NASM-Assembly.
cmd: go tool compile -S Main.go
 or
cmd: go build -gcflags -S Main.go

can this "asm2c" tool produce ANSI C output from Go-Assembly ?
if not, would you please add such option/feature ?
or, what would you suggest i should use ?

EDIT : added a sentence on upvoting in SO.
EDIT : added links for 'Go'-problems.
EDIT : added a link to new Transpiler-List project site, etc.

I'm developing similar project using Python (masm2c) because I don't know Swift.
I have ported i386 instructions tests from qemu.
You can reuse it too:
_qemu_tests.zip
It can be run directly on hardware or translated using masm2c. So you can compare output of instructions (regs and flags) and make sure all instructions calculate well as hardware.

Don't know how much of the classic Impulse Tracker would be handled successfully by asm2c, but would sure love to find out! I'm unable to use the Mac xcodeproj, is the source OS-independent otherwise or does it require Mac-specific APIs?

I want to convert some assembly code to rough c / c++ code (human readable ) and i came across this but i am not sure wow can i create a usable binary or executable from this code (Windows) so that i can use that to convert my assembly code to c/c++