/* Contract for all versions is same as cas.l r2,r3,@r0 * pr and r1 are also clobbered (by jsr & r1 as temp). * r0,r2,r4-r15 must be preserved. * r3 contains result (==r2 iff cas succeeded). */ .align 2 .global __sh_cas_gusa .hidden __sh_cas_gusa __sh_cas_gusa: mov.l r5,@-r15 mov.l r4,@-r15 mov r0,r4 mova 1f,r0 mov r15,r1 mov #(0f-1f),r15 0: mov.l @r4,r5 cmp/eq r5,r2 bf 1f mov.l r3,@r4 1: mov r1,r15 mov r5,r3 mov r4,r0 mov.l @r15+,r4 rts mov.l @r15+,r5 .global __sh_cas_llsc .hidden __sh_cas_llsc __sh_cas_llsc: mov r0,r1 synco 0: movli.l @r1,r0 cmp/eq r0,r2 bf 1f mov r3,r0 movco.l r0,@r1 bf 0b mov r2,r0 1: synco mov r0,r3 rts mov r1,r0 .global __sh_cas_imask .hidden __sh_cas_imask __sh_cas_imask: mov r0,r1 stc sr,r0 mov.l r0,@-r15 or #0xf0,r0 ldc r0,sr mov.l @r1,r0 cmp/eq r0,r2 bf 1f mov.l r3,@r1 1: ldc.l @r15+,sr mov r0,r3 rts mov r1,r0 .global __sh_cas_cas_l .hidden __sh_cas_cas_l __sh_cas_cas_l: rts .word 0x2323 /* cas.l r2,r3,@r0 */