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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 | /* * 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 |