newlib-cygwin/newlib/libc/machine/spu/printf.S

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2007-08-23 Hidetaka Takano <hidetaka.takano@glb.toshiba.co.jp> Reduce the memory consumption of variable argument functions for SPU (cell): * libc/machine/spu/Makefile.am: Replace printf/scanf family C sources to assembler sources. * libc/machine/spu/Makefile.in: Regenerated. * libc/machine/spu/stdio.c: Add __check_init function wrapping CHECK_INIT macro to use from assembler routines. * libc/machine/spu/c99ppe.h: Add definitions for assembler code. * libc/machine/spu/fiprintf.S: New file. * libc/machine/spu/fiscanf.S: Ditto. * libc/machine/spu/fprintf.S: Ditto. * libc/machine/spu/fscanf.S: Ditto. * libc/machine/spu/iprintf.S: Ditto. * libc/machine/spu/iscanf.S: Ditto. * libc/machine/spu/printf.S: Ditto. * libc/machine/spu/scanf.S: Ditto. * libc/machine/spu/siprintf.S: Ditto. * libc/machine/spu/siscanf.S: Ditto. * libc/machine/spu/sniprintf.S: Ditto. * libc/machine/spu/snprintf.S: Ditto. * libc/machine/spu/sprintf.S: Ditto. * libc/machine/spu/sscanf.S: Ditto. * libc/machine/spu/stack_reg_va.S: Ditto. * libc/machine/spu/syscall.def: Ditto. (for maintenance) * libc/machine/spu/mk_syscalls: Ditto. (for maintenance) * libc/machine/spu/fiprintf.c: Removed. (Replaced by .S) * libc/machine/spu/fiscanf.c: Ditto. * libc/machine/spu/fprintf.c: Ditto. * libc/machine/spu/fscanf.c: Ditto. * libc/machine/spu/iprintf.c: Ditto. * libc/machine/spu/iscanf.c: Ditto. * libc/machine/spu/printf.c: Ditto. * libc/machine/spu/scanf.c: Ditto. * libc/machine/spu/siprintf.c: Ditto. * libc/machine/spu/siscanf.c: Ditto. * libc/machine/spu/sniprintf.c: Ditto. * libc/machine/spu/snprintf.c: Ditto. * libc/machine/spu/sprintf.c: Ditto. * libc/machine/spu/sscanf.c: Ditto.
2007-08-24 02:45:22 +08:00
/*
Copyright (c) 2007, Toshiba Corporation
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the names of Toshiba nor the names of its
contributors may be used to endorse or promote products derived from this
software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#include "c99ppe.h"
.text
.align 4
GLOBL printf
printf:
stqd $0, 16($sp) /* save caller address */
il $2, 1 /* number of fixed arguments */
brsl $0, __stack_reg_va /* save register to the stack frame */
il $3, SPE_C99_SIGNALCODE
il $4, SPE_C99_VPRINTF
ai $5, $sp, 16*2 /* data ($3 save address) */
brsl $0, __send_to_ppe
il $2, 16*(SPE_STACK_REGS+2+2)
a $sp, $sp, $2
lqd $0, 16($sp) /* load caller address */
bi $0 /* return to caller */