Fix missing Posix library to "make" examples on PC side:

• Fatal error 8: Cannot open "-lposix": No such file or directory.

• it doesn't work declaring library path C:\vbcc\posix\AmigaOS3 on Windows, but it works copying the posix.lib in the /build dir

Hey, I am completely new to amiga and a linux user, so I've been poking around in this framework the last few days and have now made it fully working on linux. And the cross compiled examples work in my FS-UAE setup.

This writeup contains the necessary steps to setup. I had to change the source code at some points. I don't have a real amiga, so maybe some of these changes shouldn't be done. But they were necessary for the examples to work on both the emulator and when run from qt creator.

Hope this helps someone!

haujobb-amiga (linux guide)

Add the following exports to your .zshrc or .bashrc

export VBCC="${HOME}/.local/vbcc"
export PATH=$VBCC/bin:$PATH

export NDK="${HOME}/.local/NDK"
export NDK_INC=$NDK/Include/include_h
export NDK_INC_I=$NDK/Include/include_i
export NDK_LIB=$NDK/Include/linker_libs

export AMIGA="${HOME}/FS-UAE/Hard Drives/wip"

This is the setup official guide:
https://www.dig-id.de/amiga/framework/

It is very windows specific, so it is easier to install the tools necessary by following this guide:
https://blitterstudio.com/setting-up-an-amiga-cross-compiler/
And part of this guide for vbcc compilation byte endian questions:
https://blitterstudio.com/setting-up-an-amiga-cross-compiler-windows/

Compiling wos for the amiga

wos/makefile change ASFLAGS to:

ASFLAGS = -Fhunk -m68020 -m68882 -I$(NDK)/NDK_3.9/Include/include_i 

rename wos/wos_v1.63.s to wos/Wos_v1.63.s
in wos directory: make

Compiling demos for the amiga (stars example)

Change makefile like this:

CFLAGS =  +aos68k -O=23999 -cpu=68060 -fpu=68060 -DAMIGA -c99 -speed -k

INCDIR   := $(VBCC)/posix/include $(VBCC)/targets/m68k-amigaos/include $(INCDIR) ./ $(NDK_INC) 
LIBDIR   := $(VBCC)/targets/m68k-amigaos/lib

Run make in the build directory

Preview demo on linux - qtcreator (stars example)

Install gcc, qtcreator and gdb with your package manager

Open "stars.pro" file in qtcreator

Remove "-lopengl32" by commenting out this line

LIBS += -lopengl32

Change end of HEADERS

    ../shared/tools/rand.h \
    ../shared/math/imath.h

Change end of SOURCES

    ../shared/tools/rand.c \
    ../shared/math/imath.c

in main.c:

Change

#ifndef WIN32

to

#ifdef AMIGA

in wos.cpp Comment out:

delete[] mAudioBuffer;

hellodemo - full example of demo toolchain

Install libbass (bass24)

Open hellodemo.pro in qtcreator

And in hellodemo.pro do the following:

Uncomment

LIBS += -lbass

Comment

LIBS += ../shared/libs/bass24/c/bass.lib

Change

LIBS += -lws2_32

To

win32 {
LIBS += -lws2_32
}

Change

SOURCES += \
    src/main.c \
    src/stars/starseffect.c \
    src/main.c \
    src/movetable/movetableeffect.c \
    src/pictures/pictureeffect.c

to

SOURCES += \
    src/main.c \
    src/stars/starseffect.c \
    src/movetable/movetableeffect.c \
    src/pictures/pictureeffect.c

Navigate to the generated qt project folder "build-hellodemo-Desktop-Debug"
and copy data files from the hellodemo

cp ../hellodemo/data . -r

Add to pictureeffect.c

extern unsigned char* screenBuffer;

In main.c

replace

//screenBuffer= (unsigned char*)malloc(xres*yres*sizeof(int));

saveScreenBuffer= (unsigned char*)malloc(xres*yres*3+16);

memset32(saveScreenBuffer, 0x0, xres*yres*3+16);

// align screen buffer to 16 byte
screenBuffer= (unsigned char*)( ((unsigned int)screenBuffer+15) & ~15 );

with

saveScreenBuffer= (unsigned char*)malloc(xres*yres*3);
screenBuffer= saveScreenBuffer + xres*yres;

Install rocket: https://github.com/rocket/rocket and start it.

Open hellodemo.rocket file in hellodemo directory

Build and run the code

Change the makefile like this to compile for the amiga:

CFLAGS = +aos68k -O=23999 -cpu=68060 -fpu=68060 -DAMIGA -speed -c99 -k -DSYNC_PLAYER -DNEED_STRDUP
ASFLAGS = -Fhunk -m68020 -m68882 -I${NDK}/Include/include_i

INCDIR   := $(VBCC)/posix/include $(VBCC)/targets/m68k-amigaos/include $(INCDIR) ./ $(NDK_INC) 
LIBDIR   := $(VBCC)/targets/m68k-amigaos/lib

fs-uae (amiga emulator)

Install fs-uae with your package manager

Find and download the following files:

Kickstart rom

Kickstart v3.1 r40.68 (1993)(Commodore)(A1200)[!].rom
SHA-1: e21545723fe8374e91342617604f1b3d703094f1

workbench 3.1 disk

wbench31.adf
SHA-1: 54932a937a66994f522a29e03982137b1d2302e1

classicwb:
http://classicwb.abime.net/classicweb/downloaduae.htm (the link that says "UAE")

Follow this guide:
https://fs-uae.net/installing-classicwb-in-fs-uae

After installing classicWB use this config (FS-UAE/Configurations/Default.fs-uae) - it will setup a WIP hdd as well where we can transfer demos to:

[fs-uae]

amiga_model = A1200/020
chip_memory = 2048
zorro_iii_memory = 65536

uae_fpu_model = 68882

floppy_drive_count = 0
hard_drive_0 = ~/FS-UAE/Hard Drives/ClassicWB/System_P96.hdf
hard_drive_1 = ~/FS-UAE/Hard Drives/ClassicWB/Software
hard_drive_2 = ~/FS-UAE/Hard Drives/ClassicWB/PC
hard_drive_3 = wip

fullscreen = 1

Then go to the following link and download the topmost archive for the CPU updates.
http://phase5.a1k.org/index.html

Extract the files to your wip HDD. Then boot up your amiga and drag those files into System/LIBS

After that update your config file to the following

[fs-uae]
amiga_model = A1200
chip_memory = 2048
cpu = 68060
floppy_drive_count = 0
hard_drive_0 = ~/FS-UAE/Hard Drives/COMPO_ClassicWB/System_P96.hdf
hard_drive_1 = ~/FS-UAE/Hard Drives/COMPO_ClassicWB/Software
hard_drive_2 = ~FS-UAE/Hard Drives/COMPO_ClassicWB/PC
hard_drive_3 = wip
uae_cpu_model = 68060
uae_fpu_model = 68882
zorro_iii_memory = 65536
fullscreen = 1

Created from note for learning

Two missing file errors on:

• wickedlink.s (in 77):
  include wos.i
• wickedquicklink.s (in 114)
  include wos.i

I've could fixed them changing both lines with:
include wos:includes/wos.i

It's ok?

PS1: To compile with devpac I've had to assign devpac: volume due to lines 15 and 16 in go file,
PS2: I can't see executable files after compilation

Change text line in section 2.3 from documentation:

cd to the /examples/helloworld folder ---> cd to the /demo/helloworld folder

Hi

Compiling with QT Creator on Windows there are minor issues to fix in order to compile successfuly like adding these lines to the project files:
...
win32 {
DEFINES += _USE_MATH_DEFINES=1
DEFINES += _CRT_SECURE_NO_WARNINGS=1

LIBS += -lwinmm
}
...
HEADERS +=
...
../shared/math/imath.h
...

SOURCES +=
...
../shared/math/imath.c
...

For some strange reason windows binaries aren't recognizing the relative paths correctly to open files and I have to set full paths but I guess that's something wrong with my config. I also had problems with hellodemo on windows due to bad bass link library version. On the other hand Amiga binaries compile&run flawlessly (without changes, as the link library probably includes all the math functions).

Keep up the good work!
Crumb

When compiling hellodemo in both compilers (Qt & VS) raises 22 errors, but first one is:

profile.c:167: error: C4235: non standard extension: '__asm' keyword is not allowed in this architecture