linux/linux-5.4.31/arch/sparc/kernel/getsetcc.S

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2024-01-30 10:43:28 +00:00
/* SPDX-License-Identifier: GPL-2.0 */
.globl getcc
.type getcc,#function
getcc:
ldx [%o0 + PT_V9_TSTATE], %o1
srlx %o1, 32, %o1
and %o1, 0xf, %o1
retl
stx %o1, [%o0 + PT_V9_G1]
.size getcc,.-getcc
.globl setcc
.type setcc,#function
setcc:
ldx [%o0 + PT_V9_TSTATE], %o1
ldx [%o0 + PT_V9_G1], %o2
or %g0, %ulo(TSTATE_ICC), %o3
sllx %o3, 32, %o3
andn %o1, %o3, %o1
sllx %o2, 32, %o2
and %o2, %o3, %o2
or %o1, %o2, %o1
retl
stx %o1, [%o0 + PT_V9_TSTATE]
.size setcc,.-setcc