| Line 23... |
Line 23... |
with Doxygen. */
|
with Doxygen. */
|
/* -------------------------------------------------------------------------- */
|
/* -------------------------------------------------------------------------- */
|
|
|
|
|
/* -------------------------------------------------------------------------- */
|
/* -------------------------------------------------------------------------- */
|
/*!_setjmp
|
/*!setjmp
|
|
|
All processor state is saved in the buffer provided. We need not save r0
|
All processor state is saved in the buffer provided. We need not save r0
|
(it will always be zero) and we need not save r11 (it will always be
|
(it will always be zero) and we need not save r11 (it will always be
|
overridden here, and in _longjmp).
|
overridden here, and in longjmp).
|
|
|
@todo We should prefer to save and restore the status register, but this is
|
@todo We should prefer to save and restore the status register, but this is
|
not directly possible in user code. There is some merit in code to
|
not directly possible in user code. There is some merit in code to
|
set the flag, since in compiled C code, that might be expected to hold
|
set the flag, since in compiled C code, that might be expected to hold
|
a value. We leave a space for this information for future enhancement.
|
a value. We leave a space for this information for future enhancement.
|
| Line 39... |
Line 39... |
@param[out] env(r3) A buffer to save all the current processor state.
|
@param[out] env(r3) A buffer to save all the current processor state.
|
|
|
@return zero.
|
@return zero.
|
/* -------------------------------------------------------------------------- */
|
/* -------------------------------------------------------------------------- */
|
.align 4
|
.align 4
|
.global _setjmp
|
.global setjmp
|
.type _setjmp,@function
|
.type setjmp,@function
|
_setjmp:
|
setjmp:
|
l.sw 4(r3),r1 /* Slot 0 saved for flag in future */
|
l.sw 4(r3),r1 /* Slot 0 saved for flag in future */
|
l.sw 8(r3),r2
|
l.sw 8(r3),r2
|
l.sw 12(r3),r3
|
l.sw 12(r3),r3
|
l.sw 16(r3),r4
|
l.sw 16(r3),r4
|
l.sw 20(r3),r5
|
l.sw 20(r3),r5
|
| Line 76... |
Line 76... |
l.sw 120(r3),r31
|
l.sw 120(r3),r31
|
|
|
l.jr r9
|
l.jr r9
|
l.addi r11,r0,0 /* Zero result */
|
l.addi r11,r0,0 /* Zero result */
|
|
|
.size _setjmp, .-_setjmp
|
.size setjmp, .-setjmp
|
.size setjmp, .-setjmp
|
.size setjmp, .-setjmp
|
