Recent posts

#1

OxygenBasic Examples / Re: Msgbox asm

Last post by Frank Brübach - Yesterday at 11:56:02 PM

Thanks again Charles and didnt know yet that Show command

Found the solution by another c++ example about asm 64 Bit I was quite near the solution

Oxygen Code

Code Select Expand

'' -- add x64bit example, 30-5-2024 by frank bruebach
'' -- oxygen basic
''
$filename "t1b.exe"
uses rtl64
'
'messagebox 64 bit
'
Declare Function MessageBox Lib "user32.dll" alias "MessageBoxA" (ByVal hwnd As sys, ByVal lpText As String, ByVal lpCaption As String, ByVal wType As Long) As Long

byte val1
byte val2
int result
   
    val1=4
    val2=6 '

    mov rax, [val1]
    add rax, [val2]
    mov [result], rax
    mov eax, 60

zstring tit[] ="The great world of OxygenBasic..."
zstring msg[]="Hello dear Animal World! " + str(result)

sub  rsp,40h
mov  r9d, 0     
lea  r8,  tit   
lea  rdx, msg   
mov  rcx, 0       
call MessageBox
add  rsp,40h
'
' ok result 10

Now I am calm No more questions today

#2

Contentious discussions about anything, the world, politics and health topics. / Your dementia risk

Last post by Charles Pegge - Yesterday at 10:08:39 PM

and how to reverse it

Dr Patrick Holford
Dr. John Campbell

[#show]

#3

OxygenBasic Examples / Re: Msgbox asm

Last post by Charles Pegge - Yesterday at 09:16:57 PM

Here's a trade secret:

You can reveal the Assembly code of any piece of Oxygen by using the #show command:

it shows the intermediate code followed by Asm code

Code Select Expand

int a,b,c
#show {
a=b+c
mbox str(a)
}

The code can also be stored directly into a text file:

Code Select Expand

int a,b,c
#show  "t.txt" {
a=b+c
mbox str(a)
}


#4

OxygenBasic Examples / Re: Msgbox asm

Last post by Frank Brübach - Yesterday at 07:01:23 PM

Hi Charles again..

How I can add correct two numbers in 64 Bit Mode in this msgbox example?  Thx in advance , Frank

Code Select Expand

' 64 bit x86
'
$ FileName "test64add2number.exe"
#include "$\inc\RTL64.inc"

byte val1
byte val2
int result
   
    val1=4
    val2=6 '

     '' mov eax,val1 
     '' mov eax,val2  ''multiply eax by ebx  "
     '' mul val1 'ebx 
     '' mov result,eax


'------------------ //
     mov rax,rdi
     add rax, val2 
     'add val1 'rax,
     mov rdi,val1
     mov result,rax
'------------------ //

zstring tit[]="64Bit OxygenBasic"
zstring msg[]="Hello dear Animal World! " + str(result)

'' oxygen 64 bit
''
sub  rsp,40h
mov  r9,  0       
lea  r8,  tit   
lea  rdx, msg   
mov  rcx, 0
call messagebox       
add  rsp, 40h
''
'' output: Hello dear Animal World! 24



#5

PowerBasic Adventures / Power Basic forum maybe going ...

Last post by Paul Yuen - Yesterday at 06:10:22 PM

Hi
Please take a look at https://forum.powerbasic.com/forum/announcements-articles-and-support-faqs/frequently-asked-questions/833672-powerbasic-website-and-forums#post833672

PB forum may be going dark very soon, as there is no management response to members' queries about future
stake of the PB forum.

#6

OxygenBasic Examples / Re: Type question

Last post by Charles Pegge - Yesterday at 04:42:28 PM

Hi Frank,

I could not make sense of your example but in any case, you will need to specify the allocated char count of the zstring

type aStruct
    a as long
    b[16] as zstring
end type

#7

Code to share / Re: sizeof example

Last post by Frank Brübach - Yesterday at 03:53:52 PM

Here is a little sizeof example

Code Select Expand

Print SizeOf(Byte) ' returns 1

Type mybar
    a As Integer '4
    b as float '4
    c as long '4
    d As Double '8
    e as ulong '4
    f as short '2
    g as byte '1
End Type

dim myfoo as mybar
print SizeOf(myfoo) ' returns 32
 


#8

OxygenBasic Examples / Type question

Last post by Frank Brübach - Yesterday at 03:24:03 PM

Hello Charles,

Can I add a value and a String with a Type in a function?

Code Select Expand

type aStruct
    a as long
    b as zstring
end type

function one_add(long a,b) as long
dim st as aStruct

st.a = 5
st.b = "Thor"
return a+b

end function

function two_add(long a,b) as long
dim st as aStruct

st.a = 5
st.b = "Thor"
return st.a+str(st.b)

end function

print "one_add: " + one_add(2,4) ' result 6
print "two_add: " + two_add(2,4) ' result 50 ' ???



#9

OxygenBasic Examples / Re: CByte

Last post by Charles Pegge - May 29, 2024, 05:44:54 PM

some signed byte values:

0x7f -->  127
0x80 --> -128
0x81 --> -127
...
0xfe --> -2
0xff --> -1

0x104 modulo 0xff --> 4

[strange Humanoids Around the World: Ten Eyewitness Accounts]

#10

Contentious discussions about anything, the world, politics and health topics. / Re: Extraterrestrial Meetings

Last post by Charles Pegge - May 29, 2024, 05:31:33 PM

The entire food pyramid on planet Earth is cruel, unfortunately.


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