FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ) .section ".note.GNU-stack", "", %progbits .text .arm /** * Logical shift left * * @v r1:r0 Value to shift * @v r2 Shift amount * @ret r1:r0 Shifted value */ .section ".text.__aeabi_llsl", "ax", %progbits .globl __aeabi_llsl .type __aeabi_llsl, %function __aeabi_llsl: /* r3 = ( shift - 32 ) */ subs r3, r2, #32 /* If shift >= 32, then * high = ( low << ( shift - 32 ) ) */ movpl r1, r0, lsl r3 /* If shift < 32, then * high = ( ( high << shift ) | ( low >> ( 32 - shift ) ) ) */ movmi r1, r1, lsl r2 rsbmi r3, r2, #32 orrmi r1, r1, r0, lsr r3 /* low = ( low << shift ) */ mov r0, r0, lsl r2 bx lr .size __aeabi_llsl, . - __aeabi_llsl /** * Logical shift right * * @v r1:r0 Value to shift * @v r2 Shift amount * @ret r1:r0 Shifted value */ .section ".text.__aeabi_llsr", "ax", %progbits .globl __aeabi_llsr .type __aeabi_llsr, %function __aeabi_llsr: /* r3 = ( shift - 32 ) */ subs r3, r2, #32 /* If shift >= 32, then * low = ( high >> ( shift - 32 ) ) */ movpl r0, r1, lsr r3 /* If shift < 32, then * low = ( ( low >> shift ) | ( high << ( 32 - shift ) ) ) */ movmi r0, r0, lsr r2 rsbmi r3, r2, #32 orrmi r0, r0, r1, lsl r3 /* high = ( high >> shift ) */ mov r1, r1, lsr r2 bx lr .size __aeabi_llsr, . - __aeabi_llsr /** * Arithmetic shift right * * @v r1:r0 Value to shift * @v r2 Shift amount * @ret r1:r0 Shifted value */ .section ".text.__aeabi_lasr", "ax", %progbits .globl __aeabi_lasr .type __aeabi_lasr, %function __aeabi_lasr: /* r3 = ( shift - 32 ) */ subs r3, r2, #32 /* If shift >= 32, then * low = ( high >> ( shift - 32 ) ) */ movpl r0, r1, asr r3 /* If shift < 32, then * low = ( ( low >> shift ) | ( high << ( 32 - shift ) ) ) */ movmi r0, r0, lsr r2 rsbmi r3, r2, #32 orrmi r0, r0, r1, lsl r3 /* high = ( high >> shift ) */ mov r1, r1, asr r2 bx lr .size __aeabi_lasr, . - __aeabi_lasr