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|
/* vacall function for mips CPU */
/*
* Copyright 1995-2004 Bruno Haible, <bruno@clisp.org>
*
* This is free software distributed under the GNU General Public Licence
* described in the file COPYING. Contact the author if you don't have this
* or can't live with it. There is ABSOLUTELY NO WARRANTY, explicit or implied,
* on this software.
*/
#ifndef REENTRANT
#include "vacall.h.in"
#else /* REENTRANT */
#include "vacall_r.h.in"
#endif
#ifndef REENTRANT
typedef void (*func_pointer)(va_alist);
#else /* REENTRANT */
#define __vacall __vacall_r
typedef void (*func_pointer)(void*,va_alist);
register struct { func_pointer vacall_function; void* arg; }
* env __asm__("$2");
#endif
register func_pointer t9 __asm__("$25");
register void* sp __asm__("$sp");
register long iarg0 __asm__("$4");
register long iarg1 __asm__("$5");
register long iarg2 __asm__("$6");
register long iarg3 __asm__("$7");
register long iarg4 __asm__("$8");
register long iarg5 __asm__("$9");
register long iarg6 __asm__("$10");
register long iarg7 __asm__("$11");
register float farg0 __asm__("$f12");
register float farg1 __asm__("$f13");
register float farg2 __asm__("$f14");
register float farg3 __asm__("$f15");
register float farg4 __asm__("$f16");
register float farg5 __asm__("$f17");
register float farg6 __asm__("$f18");
register float farg7 __asm__("$f19");
register double darg0 __asm__("$f12");
register double darg1 __asm__("$f13");
register double darg2 __asm__("$f14");
register double darg3 __asm__("$f15");
register double darg4 __asm__("$f16");
register double darg5 __asm__("$f17");
register double darg6 __asm__("$f18");
register double darg7 __asm__("$f19");
register long iret __asm__("$2");
register long iret2 __asm__("$3");
register float fret __asm__("$f0");
register float fret2 __asm__("$f2");
register double dret __asm__("$f0");
register double dret2 __asm__("$f2");
void /* the return type is variable, not void! */
__vacall (__vaword word1, __vaword word2, __vaword word3, __vaword word4,
__vaword word5, __vaword word6, __vaword word7, __vaword word8,
__vaword firstword)
{
/* Move the arguments passed in registers to their stack locations. */
(&firstword)[-8] = iarg0; /* word1 */
(&firstword)[-7] = iarg1; /* word2 */
(&firstword)[-6] = iarg2; /* word3 */
(&firstword)[-5] = iarg3; /* word4 */
(&firstword)[-4] = iarg4; /* word5 */
(&firstword)[-3] = iarg5; /* word6 */
(&firstword)[-2] = iarg6; /* word7 */
(&firstword)[-1] = iarg7; /* word8 */
{__va_alist list;
list.darg[0] = darg0;
list.darg[1] = darg1;
list.darg[2] = darg2;
list.darg[3] = darg3;
list.darg[4] = darg4;
list.darg[5] = darg5;
list.darg[6] = darg6;
list.darg[7] = darg7;
list.farg[0] = farg0;
list.farg[1] = farg1;
list.farg[2] = farg2;
list.farg[3] = farg3;
list.farg[4] = farg4;
list.farg[5] = farg5;
list.farg[6] = farg6;
list.farg[7] = farg7;
/* Prepare the va_alist. */
list.flags = 0;
list.aptr = (long)(&firstword - 8);
list.raddr = (void*)0;
list.rtype = __VAvoid;
list.memargptr = (long)&firstword;
list.anum = 0;
/* Call vacall_function. The macros do all the rest. */
#ifndef REENTRANT
(*(t9 = vacall_function)) (&list);
#else /* REENTRANT */
(*(t9 = env->vacall_function)) (env->arg,&list);
#endif
/* Put return value into proper register. */
if (list.rtype == __VAvoid) {
} else
if (list.rtype == __VAchar) {
iret = list.tmp._char;
} else
if (list.rtype == __VAschar) {
iret = list.tmp._schar;
} else
if (list.rtype == __VAuchar) {
iret = list.tmp._uchar;
} else
if (list.rtype == __VAshort) {
iret = list.tmp._short;
} else
if (list.rtype == __VAushort) {
iret = list.tmp._ushort;
} else
if (list.rtype == __VAint) {
iret = list.tmp._int;
} else
if (list.rtype == __VAuint) {
iret = list.tmp._uint;
} else
if (list.rtype == __VAlong) {
iret = list.tmp._long;
} else
if (list.rtype == __VAulong) {
iret = list.tmp._ulong;
} else
if (list.rtype == __VAlonglong) {
iret = list.tmp._long;
} else
if (list.rtype == __VAulonglong) {
iret = list.tmp._ulong;
} else
if (list.rtype == __VAfloat) {
fret = list.tmp._float;
} else
if (list.rtype == __VAdouble) {
dret = list.tmp._double;
} else
if (list.rtype == __VAvoidp) {
iret = (long)list.tmp._ptr;
} else
if (list.rtype == __VAstruct) {
if (list.flags & __VA_PCC_STRUCT_RETURN) {
/* pcc struct return convention */
iret = (long) list.raddr;
} else {
/* normal struct return convention */
if (list.flags & __VA_REGISTER_STRUCT_RETURN) {
if (list.flags & __VA_GCC_STRUCT_RETURN) {
/* gcc returns structs of size 1,2,4,8 in registers. */
if (list.rsize == sizeof(char)) {
iret = *(unsigned char *) list.raddr;
} else
if (list.rsize == sizeof(short)) {
iret = *(unsigned short *) list.raddr;
} else
if (list.rsize == sizeof(int)) {
iret = *(unsigned int *) list.raddr;
} else
if (list.rsize == sizeof(long)) {
iret = *(unsigned long *) list.raddr;
}
} else {
/* cc returns structs of size <= 16 in registers. */
/* Maybe this big if cascade could be replaced with
* if (list.rsize > 0 && list.rsize <= 16)
* __asm__ ("ldl $2,%0 ; ldr $2,%1"
* : : "m" (((unsigned char *) list.raddr)[0]),
* "m" (((unsigned char *) list.raddr)[7]));
*/
if (list.rsize > 0 && list.rsize <= 16) {
if (list.rsize == 1) {
iret = (__vaword)((unsigned char *) list.raddr)[0] << 56;
} else
if (list.rsize == 2) {
iret = ((__vaword)((unsigned char *) list.raddr)[0] << 56)
| ((__vaword)((unsigned char *) list.raddr)[1] << 48);
} else
if (list.rsize == 3) {
iret = ((__vaword)((unsigned char *) list.raddr)[0] << 56)
| ((__vaword)((unsigned char *) list.raddr)[1] << 48)
| ((__vaword)((unsigned char *) list.raddr)[2] << 40);
} else
if (list.rsize == 4) {
iret = ((__vaword)((unsigned char *) list.raddr)[0] << 56)
| ((__vaword)((unsigned char *) list.raddr)[1] << 48)
| ((__vaword)((unsigned char *) list.raddr)[2] << 40)
| ((__vaword)((unsigned char *) list.raddr)[3] << 32);
} else
if (list.rsize == 5) {
iret = ((__vaword)((unsigned char *) list.raddr)[0] << 56)
| ((__vaword)((unsigned char *) list.raddr)[1] << 48)
| ((__vaword)((unsigned char *) list.raddr)[2] << 40)
| ((__vaword)((unsigned char *) list.raddr)[3] << 32)
| ((__vaword)((unsigned char *) list.raddr)[4] << 24);
} else
if (list.rsize == 6) {
iret = ((__vaword)((unsigned char *) list.raddr)[0] << 56)
| ((__vaword)((unsigned char *) list.raddr)[1] << 48)
| ((__vaword)((unsigned char *) list.raddr)[2] << 40)
| ((__vaword)((unsigned char *) list.raddr)[3] << 32)
| ((__vaword)((unsigned char *) list.raddr)[4] << 24)
| ((__vaword)((unsigned char *) list.raddr)[5] << 16);
} else
if (list.rsize == 7) {
iret = ((__vaword)((unsigned char *) list.raddr)[0] << 56)
| ((__vaword)((unsigned char *) list.raddr)[1] << 48)
| ((__vaword)((unsigned char *) list.raddr)[2] << 40)
| ((__vaword)((unsigned char *) list.raddr)[3] << 32)
| ((__vaword)((unsigned char *) list.raddr)[4] << 24)
| ((__vaword)((unsigned char *) list.raddr)[5] << 16)
| ((__vaword)((unsigned char *) list.raddr)[6] << 8);
} else
if (list.rsize >= 8 && list.rsize <= 16) {
iret = ((__vaword)((unsigned char *) list.raddr)[0] << 56)
| ((__vaword)((unsigned char *) list.raddr)[1] << 48)
| ((__vaword)((unsigned char *) list.raddr)[2] << 40)
| ((__vaword)((unsigned char *) list.raddr)[3] << 32)
| ((__vaword)((unsigned char *) list.raddr)[4] << 24)
| ((__vaword)((unsigned char *) list.raddr)[5] << 16)
| ((__vaword)((unsigned char *) list.raddr)[6] << 8)
| (__vaword)((unsigned char *) list.raddr)[7];
/* Maybe this big if cascade could be replaced with
* if (list.rsize > 8 && list.rsize <= 16)
* __asm__ ("ldl $3,%0 ; ldr $3,%1"
* : : "m" (((unsigned char *) list.raddr)[8]),
* "m" (((unsigned char *) list.raddr)[15]));
*/
if (list.rsize == 8) {
} else
if (list.rsize == 9) {
iret2 = (__vaword)((unsigned char *) list.raddr)[8] << 56;
} else
if (list.rsize == 10) {
iret2 = ((__vaword)((unsigned char *) list.raddr)[8] << 56)
| ((__vaword)((unsigned char *) list.raddr)[9] << 48);
} else
if (list.rsize == 11) {
iret2 = ((__vaword)((unsigned char *) list.raddr)[8] << 56)
| ((__vaword)((unsigned char *) list.raddr)[9] << 48)
| ((__vaword)((unsigned char *) list.raddr)[10] << 40);
} else
if (list.rsize == 12) {
iret2 = ((__vaword)((unsigned char *) list.raddr)[8] << 56)
| ((__vaword)((unsigned char *) list.raddr)[9] << 48)
| ((__vaword)((unsigned char *) list.raddr)[10] << 40)
| ((__vaword)((unsigned char *) list.raddr)[11] << 32);
} else
if (list.rsize == 13) {
iret2 = ((__vaword)((unsigned char *) list.raddr)[8] << 56)
| ((__vaword)((unsigned char *) list.raddr)[9] << 48)
| ((__vaword)((unsigned char *) list.raddr)[10] << 40)
| ((__vaword)((unsigned char *) list.raddr)[11] << 32)
| ((__vaword)((unsigned char *) list.raddr)[12] << 24);
} else
if (list.rsize == 14) {
iret2 = ((__vaword)((unsigned char *) list.raddr)[8] << 56)
| ((__vaword)((unsigned char *) list.raddr)[9] << 48)
| ((__vaword)((unsigned char *) list.raddr)[10] << 40)
| ((__vaword)((unsigned char *) list.raddr)[11] << 32)
| ((__vaword)((unsigned char *) list.raddr)[12] << 24)
| ((__vaword)((unsigned char *) list.raddr)[13] << 16);
} else
if (list.rsize == 15) {
iret2 = ((__vaword)((unsigned char *) list.raddr)[8] << 56)
| ((__vaword)((unsigned char *) list.raddr)[9] << 48)
| ((__vaword)((unsigned char *) list.raddr)[10] << 40)
| ((__vaword)((unsigned char *) list.raddr)[11] << 32)
| ((__vaword)((unsigned char *) list.raddr)[12] << 24)
| ((__vaword)((unsigned char *) list.raddr)[13] << 16)
| ((__vaword)((unsigned char *) list.raddr)[14] << 8);
} else
if (list.rsize == 16) {
iret2 = ((__vaword)((unsigned char *) list.raddr)[8] << 56)
| ((__vaword)((unsigned char *) list.raddr)[9] << 48)
| ((__vaword)((unsigned char *) list.raddr)[10] << 40)
| ((__vaword)((unsigned char *) list.raddr)[11] << 32)
| ((__vaword)((unsigned char *) list.raddr)[12] << 24)
| ((__vaword)((unsigned char *) list.raddr)[13] << 16)
| ((__vaword)((unsigned char *) list.raddr)[14] << 8)
| (__vaword)((unsigned char *) list.raddr)[15];
}
}
}
if (list.flags & __VA_REGISTER_FLOATSTRUCT_RETURN) {
if (list.rsize == sizeof(float)) {
fret = *(float*)list.raddr;
} else
if (list.rsize == 2*sizeof(float)) {
fret = *(float*)list.raddr;
fret2 = *(float*)((char*)list.raddr + 4);
}
}
if (list.flags & __VA_REGISTER_DOUBLESTRUCT_RETURN) {
if (list.rsize == sizeof(double)) {
dret = *(double*)list.raddr;
} else
if (list.rsize == 2*sizeof(double)) {
dret = *(double*)list.raddr;
dret2 = *(double*)((char*)list.raddr + 8);
}
}
}
}
}
}
}}
|
