ref: 75c92428225428c8fde2d015f010e608a0b12f1d
dir: purgatorio/emu/NetBSD/asm-power.S
#include <machine/asm.h> ENTRY_NOPROFILE(FPsave) stfd %f14,0*8(%r3) stfd %f15,1*8(%r3) stfd %f16,2*8(%r3) stfd %f17,3*8(%r3) stfd %f18,4*8(%r3) stfd %f19,5*8(%r3) stfd %f20,6*8(%r3) stfd %f21,7*8(%r3) stfd %f22,8*8(%r3) stfd %f23,9*8(%r3) stfd %f24,10*8(%r3) stfd %f25,11*8(%r3) stfd %f26,12*8(%r3) stfd %f27,13*8(%r3) stfd %f28,14*8(%r3) stfd %f29,15*8(%r3) stfd %f30,16*8(%r3) stfd %f31,17*8(%r3) blr END(FPsave) ENTRY_NOPROFILE(FPrestore) lfd %f14,0*8(%r3) lfd %f15,1*8(%r3) lfd %f16,2*8(%r3) lfd %f17,3*8(%r3) lfd %f18,4*8(%r3) lfd %f19,5*8(%r3) lfd %f20,6*8(%r3) lfd %f21,7*8(%r3) lfd %f22,8*8(%r3) lfd %f23,9*8(%r3) lfd %f24,10*8(%r3) lfd %f25,11*8(%r3) lfd %f26,12*8(%r3) lfd %f27,13*8(%r3) lfd %f28,14*8(%r3) lfd %f29,15*8(%r3) lfd %f30,16*8(%r3) lfd %f31,17*8(%r3) blr END(FPrestore) ENTRY_NOPROFILE(_tas) sync mr %r4, %r3 addi %r5,0,0x1 1: lwarx %r3, 0, %r4 cmpwi %r3, 0 bne- 2f stwcx. %r5, 0, %r4 bne- 1b 2: sync blr END(_tas) /* * void * executeonnewstack(void *tos, void (*tramp)(void *arg), void *arg) */ ENTRY_NOPROFILE(executeonnewstack) mr %r1,%r3 /* change stacks */ stwu %lr,-16(%r1) /* save lr to aid the traceback */ li %r0,0 stw %r0,20(%r1) mr %r3,%r5 mtctr %r4 bctrl /* tramp(arg) */ br END(executeonnewstack) /* * void unlockandexit(int *key) * * NB: the return status may be garbaged if the stack is reused * between the unlock and the system call, but this should * not matter since no task is waiting for the result */ ENTRY_NOPROFILE(unlockandexit) li %r0,0x0 stw %r0,0(%r3) /* unlock */ li %r0,1 /* sys exit; 234 is exit group */ li %r3,0 /* exit status */ sc br END(unlockandexit)