I have been able to rebuild the game using prebult cross-compiler from
build-djgpp project.
When I add __asm__("iret");
program crash as soon as I launch it.
Sorry not having the error now.
I am trying to:
__attribute__((interrupt))
void timer_handler(void *frame)
{
ticks++;
...
but getting:
i586-pc-msdosdjgpp-gcc -I.
-I/home/paul/Téléchargements/libmikmod-3.3.11.1/include -c -Wall -Werror
-pedantic -O3 -fomit-frame-pointer -ffast-math -march=i386 vga.c -o vga.o
timer.c: In function 'timer_handler':
timer.c:17:1: sorry, unimplemented: 80387 instructions aren't allowed in an
interrupt service routine
17 | {
| ^
make[1]: *** [Makefile:29: timer.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory '/home/paul/my_gminer/gold-mine-run/src'
make: *** [Makefile:2: all] Error 2
paul@fedora:~/my_gminer/gold-mine-run2$
Following:
https://stackoverflow.com/questions/55437894/how-to-correctly-compile-interrupt-service-routine-using-gcc
I have tried to add: -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow
-mno-red-zone at the end of CFLAGS
but it does not appears that my changes change the way the file is compiled...
I think I am very bad at editing Makefiles!
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