diff options
Diffstat (limited to 'elksemu/elks.c')
| -rw-r--r-- | elksemu/elks.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/elksemu/elks.c b/elksemu/elks.c index c31e94f..ddcf549 100644 --- a/elksemu/elks.c +++ b/elksemu/elks.c @@ -19,6 +19,10 @@ #include <sys/mman.h> #include "elks.h" +#ifdef __BCC__ +#define OLD_LIBC_VERSION +#endif + volatile struct vm86_struct elks_cpu; unsigned char *elks_base; /* Paragraph aligned */ @@ -114,13 +118,33 @@ static int load_elks(int fd) return 0; } +#ifndef OLD_LIBC_VERSION + /* + * recent versions of libc have changed the proto for vm86() + * for now I'll just override ... + */ +#define OLD_SYS_vm86 113 +#define NEW_SYS_vm86 166 + +static inline int vm86_mine(struct vm86_struct* v86) +{ + int __res; + __asm__ __volatile__("int $0x80\n" + :"=a" (__res):"a" ((int)OLD_SYS_vm86), "b" ((int)v86)); + return __res; +} +#endif void run_elks() { /* * Execute 8086 code for a while. */ +#ifndef OLD_LIBC_VERSION + int err=vm86_mine((struct vm86_struct*)&elks_cpu); +#else int err=vm86((struct vm86_struct*)&elks_cpu); +#endif switch(VM86_TYPE(err)) { /* |