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Diffstat (limited to 'libgloss/sparc_leon/fpu.S')
-rw-r--r-- | libgloss/sparc_leon/fpu.S | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/libgloss/sparc_leon/fpu.S b/libgloss/sparc_leon/fpu.S deleted file mode 100644 index b55b20d00..000000000 --- a/libgloss/sparc_leon/fpu.S +++ /dev/null @@ -1,111 +0,0 @@ -/* - * Copyright (c) 2011 Aeroflex Gaisler - * - * BSD license: - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - - -#include <asm-leon/asmmacro.h> -#include <asm-leon/leonstack.h> -#include <asm-leon/winmacros.h> -#include <asm-leon/leon.h> - -#ifndef _SOFT_FLOAT - - .seg "text" - /* ------- */ - .weak _fpdis_enable_svt - .set _fpdis_enable_svt,__fpdis_enable_svt - .weak _fpdis_enable - .set _fpdis_enable,__fpdis_enable - /* ------- */ - !.global _fpdis_enable,_fpdis_enable_svt -__fpdis_enable_svt: -__fpdis_enable: - - set SPARC_PSR_EF_MASK,%l3 - or %l0,%l3,%l0 - or %l0,0xf00, %l3 ! PIL up to 15, enable fpu - wr %l3,0, %psr ! restore the condition flags, enable fpu - nop - nop - nop - - mov %psr, %l3 ! check if fpu is present - set SPARC_PSR_EF_MASK,%l4 - andcc %l3, %l4, %l3 - bne 4f - nop - - ta 0 ! no fpu present, halt - -4: - set fpustate_current,%l4 - - ld [%l4],%l4 - set fpustate_owner,%l5 - ld [%l5],%l5 - cmp %l4,%l5 - beq mpfnostore - nop - cmp %g0,%l5 - beq mpfstore - nop - - FW_STORE(%l5) - -mpfstore: - set fpustate_owner,%l6 - st %l4,[%l6] - cmp %g0,%l4 - beq mpfnostore - nop - - FW_LOAD(%l4) - -mpfnostore: - wr %l0,0, %psr ! restore the condition flags, enable fpu - nop - nop - nop - - jmpl %l1, %g0 - rett %l2 - - .seg "data" - - .global fpustate_default - .align 8 -fpustate_default: - .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; - .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; - .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; - .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; - .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; .long 0; - .global fpustate_owner -fpustate_owner: - .word fpustate_default ! pointer to FPU owning context - - .global fpustate_current -fpustate_current: - .word fpustate_default ! pointer to current threads FPU context - -#endif |