49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
|
#ifdef SLP_EVAL
|
||
|
|
#define STACK_MAGIC 0
|
||
|
|
#define REG_FP "r8"
|
||
|
|
#ifdef __CSKYABIV2__
|
||
|
|
#define REGS_TO_SAVE_GENERAL "r4", "r5", "r6", "r7", "r9", "r10", "r11", "r15",\
|
||
|
|
"r16", "r17", "r18", "r19", "r20", "r21", "r22",\
|
||
|
|
"r23", "r24", "r25"
|
||
|
|
|
||
|
|
#if defined (__CSKY_HARD_FLOAT__) || (__CSKY_VDSP__)
|
||
|
|
#define REGS_TO_SAVE REGS_TO_SAVE_GENERAL, "vr8", "vr9", "vr10", "vr11", "vr12",\
|
||
|
|
"vr13", "vr14", "vr15"
|
||
|
|
#else
|
||
|
|
#define REGS_TO_SAVE REGS_TO_SAVE_GENERAL
|
||
|
|
#endif
|
||
|
|
#else
|
||
|
|
#define REGS_TO_SAVE "r9", "r10", "r11", "r12", "r13", "r15"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
static int
|
||
|
|
#ifdef __GNUC__
|
||
|
|
__attribute__((optimize("no-omit-frame-pointer")))
|
||
|
|
#endif
|
||
|
|
slp_switch(void)
|
||
|
|
{
|
||
|
|
register int *stackref, stsizediff;
|
||
|
|
int result;
|
||
|
|
|
||
|
|
__asm__ volatile ("" : : : REGS_TO_SAVE);
|
||
|
|
__asm__ ("mov %0, sp" : "=r" (stackref));
|
||
|
|
{
|
||
|
|
SLP_SAVE_STATE(stackref, stsizediff);
|
||
|
|
__asm__ volatile (
|
||
|
|
"addu sp,%0\n"
|
||
|
|
"addu "REG_FP",%0\n"
|
||
|
|
:
|
||
|
|
: "r" (stsizediff)
|
||
|
|
);
|
||
|
|
|
||
|
|
SLP_RESTORE_STATE();
|
||
|
|
}
|
||
|
|
__asm__ volatile ("movi %0, 0" : "=r" (result));
|
||
|
|
__asm__ volatile ("" : : : REGS_TO_SAVE);
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|