diff options
| -rw-r--r-- | utils/midiplay/adlmidiplay.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/utils/midiplay/adlmidiplay.cpp b/utils/midiplay/adlmidiplay.cpp index 542a3a1..1b5bf28 100644 --- a/utils/midiplay/adlmidiplay.cpp +++ b/utils/midiplay/adlmidiplay.cpp @@ -122,6 +122,7 @@ __inline int c99_snprintf(char *outBuf, size_t size, const char *format, ...) #define HW_OPL_MSDOS #include <conio.h> #include <dos.h> +#include <errno.h> #include <stdio.h> #include <stdlib.h> #include <stdint.h> @@ -998,6 +999,10 @@ int main(int argc, char **argv) # ifdef __DJGPP__ //disable(); + int haveYield; + errno = 0; + __dpmi_yield(); + haveYield = errno ? 0 : 1; outportb(0x43, 0x34); outportb(0x40, timerPeriod & 0xFF); outportb(0x40, timerPeriod >> 8); @@ -1192,7 +1197,10 @@ int main(int argc, char **argv) //__asm__ volatile("sti\nhlt"); //usleep(10000); # ifdef __DJGPP__ - __dpmi_yield(); + if(haveYield) + __dpmi_yield(); + else + __asm__ volatile("hlt"); # endif # ifdef __WATCOMC__ //dpmi_dos_yield(); |