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  /src/sys/arch/sparc64/doc/
TODO 46 - locore.s: rft_user (sun4v specific manual fill) - seems to work, but is it good enough (compared to openbsds rft_user?
  /src/sys/arch/sparc/sparc/
locore.s 3252 .globl return_from_trap, rft_kernel, rft_user, rft_invalid
3312 * rft_user will need to call trap(), so we need space for
3364 * Since window R is valid, we cannot use rft_user to restore stuff
3418 * We cannot use rft_user (as noted above) because
3629 rft_user: label
3732 * if 0, do a `normal' return to user (see rft_user);
3741 bz,a rft_user
3742 sethi %hi(_WANT_AST), %l7 ! first instr of rft_user
  /src/sys/arch/sparc64/sparc64/
locore.s 2066 wrpr %g0, 1, %tl ! Revert to TL==1 XXX what if this wasn't in rft_user? Oh well.
4842 .globl return_from_trap, rft_kernel, rft_user
4957 bz,pt %icc, rft_user
4958 sethi %hi(CPUINFO_VA+CI_WANT_AST), %g7 ! first instr of rft_user
5035 rft_user: label
5062 .asciz "rft_user: nsaved=%x pc=%d ctx=%x sp=%x npc=%p\n"
5134 2: .asciz "rft_user\n"
5202 bne,a rft_user ! Try starting over again

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