diff options
Diffstat (limited to 'gcc-4.9/libgcc/config/msp430/srli.S')
-rw-r--r-- | gcc-4.9/libgcc/config/msp430/srli.S | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/config/msp430/srli.S b/gcc-4.9/libgcc/config/msp430/srli.S new file mode 100644 index 0000000..9455f59 --- /dev/null +++ b/gcc-4.9/libgcc/config/msp430/srli.S @@ -0,0 +1,110 @@ +; Copyright (C) 2012-2014 Free Software Foundation, Inc. +; Contributed by Red Hat. +; +; This file is free software; you can redistribute it and/or modify it +; under the terms of the GNU General Public License as published by the +; Free Software Foundation; either version 3, or (at your option) any +; later version. +; +; This file is distributed in the hope that it will be useful, but +; WITHOUT ANY WARRANTY; without even the implied warranty of +; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +; General Public License for more details. +; +; Under Section 7 of GPL version 3, you are granted additional +; permissions described in the GCC Runtime Library Exception, version +; 3.1, as published by the Free Software Foundation. +; +; You should have received a copy of the GNU General Public License and +; a copy of the GCC Runtime Library Exception along with this program; +; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +; <http://www.gnu.org/licenses/>. + + .text + + .macro _srli n + .global __mspabi_srli_\n +__mspabi_srli_\n: + CLRC + RRC.W R12 + .endm + +/* Logical Right Shift - R12 -> R12 */ + _srli 15 + _srli 14 + _srli 13 + _srli 12 + _srli 11 + _srli 10 + _srli 9 + _srli 8 + _srli 7 + _srli 6 + _srli 5 + _srli 4 + _srli 3 + _srli 2 + _srli 1 +#ifdef __MSP430X_LARGE__ + RETA +#else + RET +#endif + +1: ADD.W #-1,R13 + CLRC + RRC.W R12,R12 + .global __mspabi_srli +__mspabi_srli: + CMP #0,R13 + JNZ 1b +#ifdef __MSP430X_LARGE__ + RETA +#else + RET +#endif + +/* Logical Right Shift - R12:R13 -> R12:R13 */ + + .macro _srll n + .global __mspabi_srll_\n +__mspabi_srll_\n: + CLRC + RRC.W R13 + RRC.W R12 + .endm + + _srll 15 + _srll 14 + _srll 13 + _srll 12 + _srll 11 + _srll 10 + _srll 9 + _srll 8 + _srll 7 + _srll 6 + _srll 5 + _srll 4 + _srll 3 + _srll 2 + _srll 1 +#ifdef __MSP430X_LARGE__ + RETA +#else + RET +#endif + +1: ADD.W #-1,R14 + CLRC + RRC.W R13 + RRC.W R12 + .global __mspabi_srll +__mspabi_srll: + CMP #0,R14 + JNZ 1b +#ifdef __MSP430X_LARGE__ + RETA +#else + RET +#endif |