245 lines
5.5 KiB
ArmAsm
245 lines
5.5 KiB
ArmAsm
|
/*
|
||
|
|
* fp_move.S
|
||
|
|
*
|
||
|
|
* Copyright Roman Zippel, 1997. All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, and the entire permission notice in its entirety,
|
||
|
|
* including the disclaimer of warranties.
|
||
|
|
* 2. 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.
|
||
|
|
* 3. The name of the author may not be used to endorse or promote
|
||
|
|
* products derived from this software without specific prior
|
||
|
|
* written permission.
|
||
|
|
*
|
||
|
|
* ALTERNATIVELY, this product may be distributed under the terms of
|
||
|
|
* the GNU General Public License, in which case the provisions of the GPL are
|
||
|
|
* required INSTEAD OF the above restrictions. (This clause is
|
||
|
|
* necessary due to a potential bad interaction between the GPL and
|
||
|
|
* the restrictions contained in a BSD-style copyright.)
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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 "fp_emu.h"
|
||
|
|
#include "fp_decode.h"
|
||
|
|
|
||
|
|
do_no_pc_mode=1
|
||
|
|
|
||
|
|
.globl fp_fmove_fp2mem
|
||
|
|
|
||
|
|
fp_fmove_fp2mem:
|
||
|
|
clr.b (2+FPD_FPSR,FPDATA)
|
||
|
|
fp_decode_dest_format
|
||
|
|
move.w %d0,%d1 | store data size twice in %d1
|
||
|
|
swap %d1 | one can be trashed below
|
||
|
|
move.w %d0,%d1
|
||
|
|
#ifdef FPU_EMU_DEBUG
|
||
|
|
lea 0f,%a0
|
||
|
|
clr.l %d0
|
||
|
|
move.b (%a0,%d1.w),%d0
|
||
|
|
printf PDECODE,"fmove.%c ",1,%d0
|
||
|
|
fp_decode_src_reg
|
||
|
|
printf PDECODE,"fp%d,",1,%d0
|
||
|
|
|
||
|
|
.data
|
||
|
|
0: .byte 'l','s','x','p','w','d','b','p'
|
||
|
|
.previous
|
||
|
|
#endif
|
||
|
|
|
||
|
|
| encode addressing mode for dest
|
||
|
|
fp_decode_addr_mode
|
||
|
|
|
||
|
|
.long fp_data, fp_ill
|
||
|
|
.long fp_indirect, fp_postinc
|
||
|
|
.long fp_predecr, fp_disp16
|
||
|
|
.long fp_extmode0, fp_extmode1
|
||
|
|
|
||
|
|
| addressing mode: data register direct
|
||
|
|
fp_data:
|
||
|
|
fp_mode_data_direct
|
||
|
|
move.w %d0,%d1
|
||
|
|
fp_decode_src_reg
|
||
|
|
fp_get_fp_reg
|
||
|
|
lea (FPD_TEMPFP1,FPDATA),%a1
|
||
|
|
move.l (%a0)+,(%a1)+
|
||
|
|
move.l (%a0)+,(%a1)+
|
||
|
|
move.l (%a0),(%a1)
|
||
|
|
lea (-8,%a1),%a0
|
||
|
|
swap %d1
|
||
|
|
move.l %d1,%d2
|
||
|
|
printf PDECODE,"\n"
|
||
|
|
jmp ([0f:w,%pc,%d1.w*4])
|
||
|
|
|
||
|
|
.align 4
|
||
|
|
0:
|
||
|
|
.long fp_data_long, fp_data_single
|
||
|
|
.long fp_ill, fp_ill
|
||
|
|
.long fp_data_word, fp_ill
|
||
|
|
.long fp_data_byte, fp_ill
|
||
|
|
|
||
|
|
fp_data_byte:
|
||
|
|
jsr fp_normalize_ext
|
||
|
|
jsr fp_conv_ext2byte
|
||
|
|
move.l %d0,%d1
|
||
|
|
swap %d2
|
||
|
|
move.w %d2,%d0
|
||
|
|
jsr fp_get_data_reg
|
||
|
|
move.b %d1,%d0
|
||
|
|
move.w %d2,%d1
|
||
|
|
jsr fp_put_data_reg
|
||
|
|
jra fp_final
|
||
|
|
|
||
|
|
fp_data_word:
|
||
|
|
jsr fp_normalize_ext
|
||
|
|
jsr fp_conv_ext2short
|
||
|
|
move.l %d0,%d1
|
||
|
|
swap %d2
|
||
|
|
move.w %d2,%d0
|
||
|
|
jsr fp_get_data_reg
|
||
|
|
move.w %d1,%d0
|
||
|
|
move.l %d2,%d1
|
||
|
|
jsr fp_put_data_reg
|
||
|
|
jra fp_final
|
||
|
|
|
||
|
|
fp_data_long:
|
||
|
|
jsr fp_normalize_ext
|
||
|
|
jsr fp_conv_ext2long
|
||
|
|
swap %d2
|
||
|
|
move.w %d2,%d1
|
||
|
|
jsr fp_put_data_reg
|
||
|
|
jra fp_final
|
||
|
|
|
||
|
|
fp_data_single:
|
||
|
|
jsr fp_normalize_ext
|
||
|
|
jsr fp_conv_ext2single
|
||
|
|
swap %d2
|
||
|
|
move.w %d2,%d1
|
||
|
|
jsr fp_put_data_reg
|
||
|
|
jra fp_final
|
||
|
|
|
||
|
|
| addressing mode: address register indirect
|
||
|
|
fp_indirect:
|
||
|
|
fp_mode_addr_indirect
|
||
|
|
jra fp_putdest
|
||
|
|
|
||
|
|
| addressing mode: address register indirect with postincrement
|
||
|
|
fp_postinc:
|
||
|
|
fp_mode_addr_indirect_postinc
|
||
|
|
jra fp_putdest
|
||
|
|
|
||
|
|
| addressing mode: address register indirect with predecrement
|
||
|
|
fp_predecr:
|
||
|
|
fp_mode_addr_indirect_predec
|
||
|
|
jra fp_putdest
|
||
|
|
|
||
|
|
| addressing mode: address register indirect with 16bit displacement
|
||
|
|
fp_disp16:
|
||
|
|
fp_mode_addr_indirect_disp16
|
||
|
|
jra fp_putdest
|
||
|
|
|
||
|
|
fp_extmode0:
|
||
|
|
fp_mode_addr_indirect_extmode0
|
||
|
|
jra fp_putdest
|
||
|
|
|
||
|
|
fp_extmode1:
|
||
|
|
fp_decode_addr_reg
|
||
|
|
jmp ([0f:w,%pc,%d0*4])
|
||
|
|
|
||
|
|
.align 4
|
||
|
|
0:
|
||
|
|
.long fp_abs_short, fp_abs_long
|
||
|
|
.long fp_ill, fp_ill
|
||
|
|
.long fp_ill, fp_ill
|
||
|
|
.long fp_ill, fp_ill
|
||
|
|
|
||
|
|
fp_abs_short:
|
||
|
|
fp_mode_abs_short
|
||
|
|
jra fp_putdest
|
||
|
|
|
||
|
|
fp_abs_long:
|
||
|
|
fp_mode_abs_long
|
||
|
|
jra fp_putdest
|
||
|
|
|
||
|
|
fp_putdest:
|
||
|
|
move.l %a0,%a1
|
||
|
|
fp_decode_src_reg
|
||
|
|
move.l %d1,%d2 | save size
|
||
|
|
fp_get_fp_reg
|
||
|
|
printf PDECODE,"\n"
|
||
|
|
addq.l #8,%a0
|
||
|
|
move.l (%a0),-(%sp)
|
||
|
|
move.l -(%a0),-(%sp)
|
||
|
|
move.l -(%a0),-(%sp)
|
||
|
|
move.l %sp,%a0
|
||
|
|
jsr fp_normalize_ext
|
||
|
|
|
||
|
|
swap %d2
|
||
|
|
jmp ([0f:w,%pc,%d2.w*4])
|
||
|
|
|
||
|
|
.align 4
|
||
|
|
0:
|
||
|
|
.long fp_format_long, fp_format_single
|
||
|
|
.long fp_format_extended, fp_format_packed
|
||
|
|
.long fp_format_word, fp_format_double
|
||
|
|
.long fp_format_byte, fp_format_packed
|
||
|
|
|
||
|
|
fp_format_long:
|
||
|
|
jsr fp_conv_ext2long
|
||
|
|
putuser.l %d0,(%a1),fp_err_ua1,%a1
|
||
|
|
jra fp_finish_move
|
||
|
|
|
||
|
|
fp_format_single:
|
||
|
|
jsr fp_conv_ext2single
|
||
|
|
putuser.l %d0,(%a1),fp_err_ua1,%a1
|
||
|
|
jra fp_finish_move
|
||
|
|
|
||
|
|
fp_format_extended:
|
||
|
|
move.l (%a0)+,%d0
|
||
|
|
lsl.w #1,%d0
|
||
|
|
lsl.l #7,%d0
|
||
|
|
lsl.l #8,%d0
|
||
|
|
putuser.l %d0,(%a1)+,fp_err_ua1,%a1
|
||
|
|
move.l (%a0)+,%d0
|
||
|
|
putuser.l %d0,(%a1)+,fp_err_ua1,%a1
|
||
|
|
move.l (%a0),%d0
|
||
|
|
putuser.l %d0,(%a1),fp_err_ua1,%a1
|
||
|
|
jra fp_finish_move
|
||
|
|
|
||
|
|
fp_format_packed:
|
||
|
|
/* not supported yet */
|
||
|
|
lea (12,%sp),%sp
|
||
|
|
jra fp_ill
|
||
|
|
|
||
|
|
fp_format_word:
|
||
|
|
jsr fp_conv_ext2short
|
||
|
|
putuser.w %d0,(%a1),fp_err_ua1,%a1
|
||
|
|
jra fp_finish_move
|
||
|
|
|
||
|
|
fp_format_double:
|
||
|
|
jsr fp_conv_ext2double
|
||
|
|
jra fp_finish_move
|
||
|
|
|
||
|
|
fp_format_byte:
|
||
|
|
jsr fp_conv_ext2byte
|
||
|
|
putuser.b %d0,(%a1),fp_err_ua1,%a1
|
||
|
|
| jra fp_finish_move
|
||
|
|
|
||
|
|
fp_finish_move:
|
||
|
|
lea (12,%sp),%sp
|
||
|
|
jra fp_final
|