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[dos] Do not install timer ISR, when ecmascript is not compiled in.

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This commit is contained in:
Witold Filipczyk 2022-06-13 15:18:00 +02:00
parent 29bf0ee9bb
commit f655bd03c7
1 changed files with 6 additions and 8 deletions
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14
src/osdep/dos/dos.c
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@ -1013,15 +1013,11 @@ void os_seed_random(unsigned char **pool, int *pool_size)
*pool_size = RANDOM_POOL_SIZE;
}
#ifdef CONFIG_ECMASCRIPT
_go32_dpmi_seginfo OldISR, NewISR;
#define TIMER 8
//Simple Example of chaining interrupt handlers
//Adopted from Matthew Mastracci's code
#include <pc.h>
#include <dpmi.h>
#include <go32.h>
//macros by Shawn Hargreaves from the Allegro library for locking
//functions and variables.
#define LOCK_VARIABLE(x) _go32_dpmi_lock_data((void *)&x,(long)sizeof(x));
@ -1030,15 +1026,14 @@ _go32_dpmi_seginfo OldISR, NewISR;
static void
TickHandler(void)
{
#ifdef CONFIG_ECMASCRIPT
static int internal = 0;
if (internal++ >= 19) {
internal = 0;
check_heartbeats(NULL);
}
#endif
}
#endif
void init_osdep(void)
{
@ -1071,6 +1066,7 @@ void init_osdep(void)
sa.sa_flags = SA_RESTART;
EINTRLOOP(rs, sigaction(SIGINT, &sa, NULL));
#ifdef CONFIG_ECMASCRIPT
LOCK_FUNCTION(TickHandler);
LOCK_FUNCTION(check_heartbeats);
//load the address of the old timer ISR into the OldISR structure
@ -1083,14 +1079,16 @@ void init_osdep(void)
//timer ISR
//will be called, then the new timer ISR
_go32_dpmi_chain_protected_mode_interrupt_vector(TIMER, &NewISR);
#endif
}
void terminate_osdep(void)
{
if (screen_backbuffer)
mem_free(screen_backbuffer);
#ifdef CONFIG_ECMASCRIPT
_go32_dpmi_set_protected_mode_interrupt_vector(TIMER, &OldISR);
#endif
}
#define LINKS_BIN_SEARCH(entries, eq, ab, key, result) \