fix error for djgpp-dos; update RHIDE project files & fix crash on -O…

…2 (djgpp-dos), experiment -O2 (-O2 not working for djgpp-dos).

hdpmipt.c

@@ -124,27 +124,26 @@ static uint32_t HDPMI_Internal_InstallTrap(const HDPMIPT_ENTRY* entry, int start
 {
     uint32_t handle = 0;
     int count = end - start + 1;
-    const HDPMIPT_ENTRY ent = *entry; //avoid gcc using ebx
     asm(
     "pushl %%ebx \n\t"
     "pushl %%esi \n\t"
     "pushl %%edi \n\t"
-    "movl %1, %%esi \n\t" //ESI: starting port
-    "movl %2, %%edi \n\t"    //EDI: port count
+    "pushl %1 \n\t pushl %2 \n\t" //"movl %1, %%esi \n\t" //ESI: starting port
+    "popl %%edi \n\t popl %%esi \n\t" //"movl %2, %%edi \n\t"    //EDI: port count
     "xor %%ecx, %%ecx \n\t"
     "mov %%cs, %%cx \n\t" //CX: handler code seg
     "xor %%ebx, %%ebx \n\t"
     "mov %%ds, %%bx \n\t" //BX: handler data seg
     "movl %3, %%edx \n\t"  //EDX: handler addr
     "movl $6, %%eax \n\t" //ax=6, install port trap
     "lcall *%4\n\t"
-    "jc 1f \n\t"
-    "movl %%eax, %0 \n\t"
-    "1: popl %%edi \n\t"
+    "popl %%edi \n\t"
     "popl %%esi \n\t"
     "popl %%ebx \n\t"
-    :"=m"(handle)
-    :"m"(start),"m"(count),"m"(handler),"m"(ent)
+    "jc 1f \n\t"
+    "movl %%eax, %0 \n\t 1:"
+    :"=g"(handle)
+    :"g"(start),"g"(count),"g"(handler),"m"(*entry)
     :"eax","ebx","ecx","edx","memory"
     );
     return handle;

mpxplay/au_cards/au_base.c

@@ -97,7 +97,7 @@ _go32_dpmi_seginfo old_addr = intaddr_go32[intno];
  {
     intaddr_go32[intno].pm_selector = vect.sel;
     intaddr_go32[intno].pm_offset = vect.off;
-    _go32_interrupt_stack_size = 4096; //512 minimal
+    //_go32_interrupt_stack_size = 4096; //512 minimal
     if(_go32_dpmi_allocate_iret_wrapper(&intaddr_go32[intno]) != 0)
         return;
     _go32_dpmi_set_protected_mode_interrupt_vector(intno, &intaddr_go32[intno]);

mpxplay/au_cards/au_cards.c

@@ -465,7 +465,7 @@ void AU_init(struct mpxplay_audioout_info_s *aui,struct mpxplay_audioout_info_s
  aui->freq_card=aui->chan_card=aui->bits_card=0;
  return;
 
-err_out_auinit:
+err_out_auinit:;
 #ifndef SBEMU
 #ifdef MPXPLAY_GUI_CONSOLE
  mpxplay_close_program(error_code);