Jordan Earls
I\'ve ported my library x86Lib to mbed. It fully emulates the 8086 processor, but a few things I\'m still working on. Notable missing things are interrupts. Previously I used exceptions for interrupts, but exceptions aren\'t supported with the mbed compiler. It is also quite slow
ops/maths.cpp@0:217a7931b41f, 2012-03-04 (annotated)
- Committer:
- earlz
- Date:
- Sun Mar 04 08:15:47 2012 +0000
- Revision:
- 0:217a7931b41f
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| earlz | 0:217a7931b41f | 1 | /** |
| earlz | 0:217a7931b41f | 2 | Copyright (c) 2007 - 2009 Jordan "Earlz/hckr83" Earls <http://www.Earlz.biz.tm> |
| earlz | 0:217a7931b41f | 3 | All rights reserved. |
| earlz | 0:217a7931b41f | 4 | |
| earlz | 0:217a7931b41f | 5 | Redistribution and use in source and binary forms, with or without |
| earlz | 0:217a7931b41f | 6 | modification, are permitted provided that the following conditions |
| earlz | 0:217a7931b41f | 7 | are met: |
| earlz | 0:217a7931b41f | 8 | |
| earlz | 0:217a7931b41f | 9 | 1. Redistributions of source code must retain the above copyright |
| earlz | 0:217a7931b41f | 10 | notice, this list of conditions and the following disclaimer. |
| earlz | 0:217a7931b41f | 11 | 2. Redistributions in binary form must reproduce the above copyright |
| earlz | 0:217a7931b41f | 12 | notice, this list of conditions and the following disclaimer in the |
| earlz | 0:217a7931b41f | 13 | documentation and/or other materials provided with the distribution. |
| earlz | 0:217a7931b41f | 14 | 3. The name of the author may not be used to endorse or promote products |
| earlz | 0:217a7931b41f | 15 | derived from this software without specific prior written permission. |
| earlz | 0:217a7931b41f | 16 | |
| earlz | 0:217a7931b41f | 17 | THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| earlz | 0:217a7931b41f | 18 | INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY |
| earlz | 0:217a7931b41f | 19 | AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| earlz | 0:217a7931b41f | 20 | THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| earlz | 0:217a7931b41f | 21 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| earlz | 0:217a7931b41f | 22 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| earlz | 0:217a7931b41f | 23 | OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| earlz | 0:217a7931b41f | 24 | WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| earlz | 0:217a7931b41f | 25 | OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| earlz | 0:217a7931b41f | 26 | ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| earlz | 0:217a7931b41f | 27 | |
| earlz | 0:217a7931b41f | 28 | This file is part of the x86Lib project. |
| earlz | 0:217a7931b41f | 29 | **/ |
| earlz | 0:217a7931b41f | 30 | #define X86LIB_BUILD |
| earlz | 0:217a7931b41f | 31 | #include <x86Lib.h> |
| earlz | 0:217a7931b41f | 32 | namespace x86Lib{ |
| earlz | 0:217a7931b41f | 33 | using namespace std; |
| earlz | 0:217a7931b41f | 34 | |
| earlz | 0:217a7931b41f | 35 | |
| earlz | 0:217a7931b41f | 36 | |
| earlz | 0:217a7931b41f | 37 | |
| earlz | 0:217a7931b41f | 38 | // TODO (Jordan#4#): Get AF stuff working in this!! |
| earlz | 0:217a7931b41f | 39 | uint8_t x86CPU::Sub8(uint8_t base,uint8_t subt){ |
| earlz | 0:217a7931b41f | 40 | int8_t result; |
| earlz | 0:217a7931b41f | 41 | if(subt>base){freg.cf=1;}else{freg.cf=0;} |
| earlz | 0:217a7931b41f | 42 | if((int16_t)base-subt>127 || (int16_t)base-subt<-127){ |
| earlz | 0:217a7931b41f | 43 | freg.of=1; |
| earlz | 0:217a7931b41f | 44 | }else{ |
| earlz | 0:217a7931b41f | 45 | freg.of=0; |
| earlz | 0:217a7931b41f | 46 | } |
| earlz | 0:217a7931b41f | 47 | result=base-subt; |
| earlz | 0:217a7931b41f | 48 | if(result==0){freg.zf=1;}else{freg.zf=0;} |
| earlz | 0:217a7931b41f | 49 | CalculatePF8(result); //do pf |
| earlz | 0:217a7931b41f | 50 | CalculateSF8(result); //do sf |
| earlz | 0:217a7931b41f | 51 | base&=0xF; |
| earlz | 0:217a7931b41f | 52 | subt&=0xF; |
| earlz | 0:217a7931b41f | 53 | freg.af = (((base-subt) & ~0xf) != 0); //thank you http://stackoverflow.com/questions/4513746/explain-how-the-af-flag-works-in-an-x86-instructions |
| earlz | 0:217a7931b41f | 54 | return result; |
| earlz | 0:217a7931b41f | 55 | } |
| earlz | 0:217a7931b41f | 56 | |
| earlz | 0:217a7931b41f | 57 | uint16_t x86CPU::Sub16(uint16_t base,uint16_t subt){ |
| earlz | 0:217a7931b41f | 58 | int16_t result; |
| earlz | 0:217a7931b41f | 59 | uint16_t mirror; |
| earlz | 0:217a7931b41f | 60 | if(subt>base){freg.cf=1;}else{freg.cf=0;} |
| earlz | 0:217a7931b41f | 61 | if((int32_t)base-subt>32767 || (int32_t)base-subt<-32767){ |
| earlz | 0:217a7931b41f | 62 | freg.of=1; |
| earlz | 0:217a7931b41f | 63 | }else{ |
| earlz | 0:217a7931b41f | 64 | freg.of=0; |
| earlz | 0:217a7931b41f | 65 | } |
| earlz | 0:217a7931b41f | 66 | mirror=base-subt; |
| earlz | 0:217a7931b41f | 67 | result=mirror; |
| earlz | 0:217a7931b41f | 68 | if(result==0){freg.zf=1;}else{freg.zf=0;} |
| earlz | 0:217a7931b41f | 69 | CalculatePF16(result); //do pf |
| earlz | 0:217a7931b41f | 70 | CalculateSF16(result); //do sf |
| earlz | 0:217a7931b41f | 71 | base&=0xF; |
| earlz | 0:217a7931b41f | 72 | subt&=0xF; |
| earlz | 0:217a7931b41f | 73 | freg.af = (((base-subt) & ~0xf) != 0); |
| earlz | 0:217a7931b41f | 74 | return mirror; |
| earlz | 0:217a7931b41f | 75 | } |
| earlz | 0:217a7931b41f | 76 | |
| earlz | 0:217a7931b41f | 77 | uint8_t x86CPU::Add8(uint8_t base,uint8_t adder){ |
| earlz | 0:217a7931b41f | 78 | int8_t result; |
| earlz | 0:217a7931b41f | 79 | if(adder+base>255){freg.cf=1;}else{freg.cf=0;} |
| earlz | 0:217a7931b41f | 80 | if((int16_t)base+adder>127 || (int16_t)base+adder<-127){ |
| earlz | 0:217a7931b41f | 81 | freg.of=1; |
| earlz | 0:217a7931b41f | 82 | }else{ |
| earlz | 0:217a7931b41f | 83 | freg.of=0; |
| earlz | 0:217a7931b41f | 84 | } |
| earlz | 0:217a7931b41f | 85 | result=base+adder; |
| earlz | 0:217a7931b41f | 86 | if(result==0){freg.zf=1;}else{freg.zf=0;} |
| earlz | 0:217a7931b41f | 87 | CalculatePF8(result); //do pf |
| earlz | 0:217a7931b41f | 88 | CalculateSF8(result); //do sf |
| earlz | 0:217a7931b41f | 89 | base&=0x0F; |
| earlz | 0:217a7931b41f | 90 | adder&=0x0F; |
| earlz | 0:217a7931b41f | 91 | freg.af = ((int16_t)base+adder > 15); |
| earlz | 0:217a7931b41f | 92 | return result; |
| earlz | 0:217a7931b41f | 93 | } |
| earlz | 0:217a7931b41f | 94 | |
| earlz | 0:217a7931b41f | 95 | uint16_t x86CPU::Add16(uint16_t base,uint16_t adder){ |
| earlz | 0:217a7931b41f | 96 | int16_t result; |
| earlz | 0:217a7931b41f | 97 | if((uint32_t)adder+base>(uint32_t)65535){freg.cf=1;}else{freg.cf=0;} |
| earlz | 0:217a7931b41f | 98 | if((int32_t)base+adder>32767 || (int32_t)base+adder<-32767){ |
| earlz | 0:217a7931b41f | 99 | freg.of=1; |
| earlz | 0:217a7931b41f | 100 | }else{ |
| earlz | 0:217a7931b41f | 101 | freg.of=0; |
| earlz | 0:217a7931b41f | 102 | } |
| earlz | 0:217a7931b41f | 103 | result=base+adder; |
| earlz | 0:217a7931b41f | 104 | if(result==0){freg.zf=1;}else{freg.zf=0;} |
| earlz | 0:217a7931b41f | 105 | CalculatePF16(result); //do pf |
| earlz | 0:217a7931b41f | 106 | CalculateSF16(result); //do sf |
| earlz | 0:217a7931b41f | 107 | base&=0x0F; |
| earlz | 0:217a7931b41f | 108 | adder&=0x0F; |
| earlz | 0:217a7931b41f | 109 | freg.af = ((int16_t)base+adder > 15); |
| earlz | 0:217a7931b41f | 110 | return result; |
| earlz | 0:217a7931b41f | 111 | } |
| earlz | 0:217a7931b41f | 112 | |
| earlz | 0:217a7931b41f | 113 | |
| earlz | 0:217a7931b41f | 114 | |
| earlz | 0:217a7931b41f | 115 | |
| earlz | 0:217a7931b41f | 116 | uint8_t x86CPU::And8(uint8_t base,uint8_t mask){ |
| earlz | 0:217a7931b41f | 117 | freg.of=0; |
| earlz | 0:217a7931b41f | 118 | freg.cf=0; |
| earlz | 0:217a7931b41f | 119 | base=base&mask; |
| earlz | 0:217a7931b41f | 120 | CalculatePF8(base); |
| earlz | 0:217a7931b41f | 121 | CalculateSF8(base); |
| earlz | 0:217a7931b41f | 122 | if(base==0){ |
| earlz | 0:217a7931b41f | 123 | freg.zf=1; |
| earlz | 0:217a7931b41f | 124 | }else{ |
| earlz | 0:217a7931b41f | 125 | freg.zf=0; |
| earlz | 0:217a7931b41f | 126 | } |
| earlz | 0:217a7931b41f | 127 | return base; |
| earlz | 0:217a7931b41f | 128 | } |
| earlz | 0:217a7931b41f | 129 | |
| earlz | 0:217a7931b41f | 130 | uint16_t x86CPU::And16(uint16_t base,uint16_t mask){ |
| earlz | 0:217a7931b41f | 131 | freg.of=0; |
| earlz | 0:217a7931b41f | 132 | freg.cf=0; |
| earlz | 0:217a7931b41f | 133 | base=base&mask; |
| earlz | 0:217a7931b41f | 134 | CalculatePF16(base); |
| earlz | 0:217a7931b41f | 135 | CalculateSF16(base); |
| earlz | 0:217a7931b41f | 136 | if(base==0){ |
| earlz | 0:217a7931b41f | 137 | freg.zf=1; |
| earlz | 0:217a7931b41f | 138 | }else{ |
| earlz | 0:217a7931b41f | 139 | freg.zf=0; |
| earlz | 0:217a7931b41f | 140 | } |
| earlz | 0:217a7931b41f | 141 | return base; |
| earlz | 0:217a7931b41f | 142 | } |
| earlz | 0:217a7931b41f | 143 | |
| earlz | 0:217a7931b41f | 144 | //Not affects no flags, so just use ~ |
| earlz | 0:217a7931b41f | 145 | |
| earlz | 0:217a7931b41f | 146 | |
| earlz | 0:217a7931b41f | 147 | uint8_t x86CPU::Or8(uint8_t base,uint8_t mask){ |
| earlz | 0:217a7931b41f | 148 | freg.of=0; |
| earlz | 0:217a7931b41f | 149 | freg.cf=0; |
| earlz | 0:217a7931b41f | 150 | base=base|mask; |
| earlz | 0:217a7931b41f | 151 | CalculatePF8(base); |
| earlz | 0:217a7931b41f | 152 | CalculateSF8(base); |
| earlz | 0:217a7931b41f | 153 | if(base==0){ |
| earlz | 0:217a7931b41f | 154 | freg.zf=1; |
| earlz | 0:217a7931b41f | 155 | }else{ |
| earlz | 0:217a7931b41f | 156 | freg.zf=0; |
| earlz | 0:217a7931b41f | 157 | } |
| earlz | 0:217a7931b41f | 158 | return base; |
| earlz | 0:217a7931b41f | 159 | } |
| earlz | 0:217a7931b41f | 160 | |
| earlz | 0:217a7931b41f | 161 | uint16_t x86CPU::Or16(uint16_t base,uint16_t mask){ |
| earlz | 0:217a7931b41f | 162 | freg.of=0; |
| earlz | 0:217a7931b41f | 163 | freg.cf=0; |
| earlz | 0:217a7931b41f | 164 | base=base|mask; |
| earlz | 0:217a7931b41f | 165 | CalculatePF16(base); |
| earlz | 0:217a7931b41f | 166 | CalculateSF16(base); |
| earlz | 0:217a7931b41f | 167 | if(base==0){ |
| earlz | 0:217a7931b41f | 168 | freg.zf=1; |
| earlz | 0:217a7931b41f | 169 | }else{ |
| earlz | 0:217a7931b41f | 170 | freg.zf=0; |
| earlz | 0:217a7931b41f | 171 | } |
| earlz | 0:217a7931b41f | 172 | return base; |
| earlz | 0:217a7931b41f | 173 | } |
| earlz | 0:217a7931b41f | 174 | |
| earlz | 0:217a7931b41f | 175 | uint8_t x86CPU::Xor8(uint8_t base,uint8_t mask){ |
| earlz | 0:217a7931b41f | 176 | freg.of=0; |
| earlz | 0:217a7931b41f | 177 | freg.cf=0; |
| earlz | 0:217a7931b41f | 178 | base=base^mask; |
| earlz | 0:217a7931b41f | 179 | CalculatePF8(base); |
| earlz | 0:217a7931b41f | 180 | CalculateSF8(base); |
| earlz | 0:217a7931b41f | 181 | if(base==0){ |
| earlz | 0:217a7931b41f | 182 | freg.zf=1; |
| earlz | 0:217a7931b41f | 183 | }else{ |
| earlz | 0:217a7931b41f | 184 | freg.zf=0; |
| earlz | 0:217a7931b41f | 185 | } |
| earlz | 0:217a7931b41f | 186 | return base; |
| earlz | 0:217a7931b41f | 187 | } |
| earlz | 0:217a7931b41f | 188 | |
| earlz | 0:217a7931b41f | 189 | uint16_t x86CPU::Xor16(uint16_t base,uint16_t mask){ |
| earlz | 0:217a7931b41f | 190 | freg.of=0; |
| earlz | 0:217a7931b41f | 191 | freg.cf=0; |
| earlz | 0:217a7931b41f | 192 | base=base^mask; |
| earlz | 0:217a7931b41f | 193 | CalculatePF16(base); |
| earlz | 0:217a7931b41f | 194 | CalculateSF16(base); |
| earlz | 0:217a7931b41f | 195 | if(base==0){ |
| earlz | 0:217a7931b41f | 196 | freg.zf=1; |
| earlz | 0:217a7931b41f | 197 | }else{ |
| earlz | 0:217a7931b41f | 198 | freg.zf=0; |
| earlz | 0:217a7931b41f | 199 | } |
| earlz | 0:217a7931b41f | 200 | return base; |
| earlz | 0:217a7931b41f | 201 | } |
| earlz | 0:217a7931b41f | 202 | |
| earlz | 0:217a7931b41f | 203 | uint8_t x86CPU::ShiftLogicalRight8(uint8_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 204 | count&=0x1F; //only use bottom 5 bits |
| earlz | 0:217a7931b41f | 205 | if(count==0){ |
| earlz | 0:217a7931b41f | 206 | CalculatePF8(base); |
| earlz | 0:217a7931b41f | 207 | CalculateSF8(base); |
| earlz | 0:217a7931b41f | 208 | freg.zf=1; |
| earlz | 0:217a7931b41f | 209 | return base; |
| earlz | 0:217a7931b41f | 210 | } |
| earlz | 0:217a7931b41f | 211 | freg.of=(base&0x80)>>7; |
| earlz | 0:217a7931b41f | 212 | freg.cf=(base>>(count-1))&1; |
| earlz | 0:217a7931b41f | 213 | base=base>>count; |
| earlz | 0:217a7931b41f | 214 | freg.of=freg.of^((base&0x80)>>7); //if the sign bit changed, then set it to 1 |
| earlz | 0:217a7931b41f | 215 | CalculatePF8(base); |
| earlz | 0:217a7931b41f | 216 | CalculateSF8(base); |
| earlz | 0:217a7931b41f | 217 | if(base==0){ |
| earlz | 0:217a7931b41f | 218 | freg.zf=1; |
| earlz | 0:217a7931b41f | 219 | }else{ |
| earlz | 0:217a7931b41f | 220 | freg.zf=0; |
| earlz | 0:217a7931b41f | 221 | } |
| earlz | 0:217a7931b41f | 222 | freg.of=0; |
| earlz | 0:217a7931b41f | 223 | return base; |
| earlz | 0:217a7931b41f | 224 | } |
| earlz | 0:217a7931b41f | 225 | |
| earlz | 0:217a7931b41f | 226 | uint16_t x86CPU::ShiftLogicalRight16(uint16_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 227 | count&=0x1F; //only use bottom 5 bits |
| earlz | 0:217a7931b41f | 228 | if(count==0){ |
| earlz | 0:217a7931b41f | 229 | CalculatePF16(base); |
| earlz | 0:217a7931b41f | 230 | CalculateSF16(base); |
| earlz | 0:217a7931b41f | 231 | freg.zf=1; |
| earlz | 0:217a7931b41f | 232 | return base; |
| earlz | 0:217a7931b41f | 233 | } |
| earlz | 0:217a7931b41f | 234 | freg.of=(base&0x8000)>>15; |
| earlz | 0:217a7931b41f | 235 | freg.cf=(base>>(count-1))&1; |
| earlz | 0:217a7931b41f | 236 | base=base>>count; |
| earlz | 0:217a7931b41f | 237 | freg.of=freg.of^((base&0x8000)>>15); //if the sign bit changed, then set it to 1 |
| earlz | 0:217a7931b41f | 238 | CalculatePF16(base); |
| earlz | 0:217a7931b41f | 239 | CalculateSF16(base); |
| earlz | 0:217a7931b41f | 240 | if(base==0){ |
| earlz | 0:217a7931b41f | 241 | freg.zf=1; |
| earlz | 0:217a7931b41f | 242 | }else{ |
| earlz | 0:217a7931b41f | 243 | freg.zf=0; |
| earlz | 0:217a7931b41f | 244 | } |
| earlz | 0:217a7931b41f | 245 | freg.of=0; |
| earlz | 0:217a7931b41f | 246 | return base; |
| earlz | 0:217a7931b41f | 247 | } |
| earlz | 0:217a7931b41f | 248 | uint8_t x86CPU::ShiftArithmeticRight8(uint8_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 249 | count&=0x1F; //only use bottom 5 bits |
| earlz | 0:217a7931b41f | 250 | if(count==0){ |
| earlz | 0:217a7931b41f | 251 | CalculatePF8(base); |
| earlz | 0:217a7931b41f | 252 | CalculateSF8(base); |
| earlz | 0:217a7931b41f | 253 | freg.zf=1; |
| earlz | 0:217a7931b41f | 254 | return base; |
| earlz | 0:217a7931b41f | 255 | } |
| earlz | 0:217a7931b41f | 256 | freg.cf=(base>>(count-1))&1; |
| earlz | 0:217a7931b41f | 257 | if((base&0x80)!=0){ |
| earlz | 0:217a7931b41f | 258 | base=(base>>count)|(~(0xFF>>count)); //this replaces displaced zero bits with the sign bit |
| earlz | 0:217a7931b41f | 259 | }else{ |
| earlz | 0:217a7931b41f | 260 | base=(base>>count); |
| earlz | 0:217a7931b41f | 261 | } |
| earlz | 0:217a7931b41f | 262 | freg.of=0; |
| earlz | 0:217a7931b41f | 263 | CalculatePF8(base); |
| earlz | 0:217a7931b41f | 264 | CalculateSF8(base); |
| earlz | 0:217a7931b41f | 265 | if(base==0){ |
| earlz | 0:217a7931b41f | 266 | freg.zf=1; |
| earlz | 0:217a7931b41f | 267 | }else{ |
| earlz | 0:217a7931b41f | 268 | freg.zf=0; |
| earlz | 0:217a7931b41f | 269 | } |
| earlz | 0:217a7931b41f | 270 | freg.of=0; |
| earlz | 0:217a7931b41f | 271 | return base; |
| earlz | 0:217a7931b41f | 272 | } |
| earlz | 0:217a7931b41f | 273 | uint16_t x86CPU::ShiftArithmeticRight16(uint16_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 274 | count&=0x1F; //only use bottom 5 bits |
| earlz | 0:217a7931b41f | 275 | if(count==0){ |
| earlz | 0:217a7931b41f | 276 | CalculatePF16(base); |
| earlz | 0:217a7931b41f | 277 | CalculateSF16(base); |
| earlz | 0:217a7931b41f | 278 | freg.zf=1; |
| earlz | 0:217a7931b41f | 279 | return base; |
| earlz | 0:217a7931b41f | 280 | } |
| earlz | 0:217a7931b41f | 281 | freg.cf=(base>>(count-1))&1; |
| earlz | 0:217a7931b41f | 282 | if((base&0x8000)!=0){ |
| earlz | 0:217a7931b41f | 283 | base=(base>>count)|(~(0xFFFF>>count)); //this replaces displaced zero bits with the sign bit |
| earlz | 0:217a7931b41f | 284 | }else{ |
| earlz | 0:217a7931b41f | 285 | base=(base>>count); |
| earlz | 0:217a7931b41f | 286 | } |
| earlz | 0:217a7931b41f | 287 | freg.of=0; |
| earlz | 0:217a7931b41f | 288 | CalculatePF16(base); |
| earlz | 0:217a7931b41f | 289 | CalculateSF16(base); |
| earlz | 0:217a7931b41f | 290 | if(base==0){ |
| earlz | 0:217a7931b41f | 291 | freg.zf=1; |
| earlz | 0:217a7931b41f | 292 | }else{ |
| earlz | 0:217a7931b41f | 293 | freg.zf=0; |
| earlz | 0:217a7931b41f | 294 | } |
| earlz | 0:217a7931b41f | 295 | freg.of=0; |
| earlz | 0:217a7931b41f | 296 | return base; |
| earlz | 0:217a7931b41f | 297 | } |
| earlz | 0:217a7931b41f | 298 | |
| earlz | 0:217a7931b41f | 299 | uint8_t x86CPU::ShiftLogicalLeft8(uint8_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 300 | count&=0x1F; //only use bottom 5 bits |
| earlz | 0:217a7931b41f | 301 | if(count==0){ |
| earlz | 0:217a7931b41f | 302 | CalculatePF8(base); |
| earlz | 0:217a7931b41f | 303 | CalculateSF8(base); |
| earlz | 0:217a7931b41f | 304 | freg.zf=1; |
| earlz | 0:217a7931b41f | 305 | return base; |
| earlz | 0:217a7931b41f | 306 | } |
| earlz | 0:217a7931b41f | 307 | freg.of=(base&0x80)>>7; |
| earlz | 0:217a7931b41f | 308 | freg.cf=((base<<(count-1))&0x80)>>7; |
| earlz | 0:217a7931b41f | 309 | base=base<<count; |
| earlz | 0:217a7931b41f | 310 | freg.of=freg.of^((base&0x80)>>7); //if the sign bit changed, then set it to 1 |
| earlz | 0:217a7931b41f | 311 | CalculatePF8(base); |
| earlz | 0:217a7931b41f | 312 | CalculateSF8(base); |
| earlz | 0:217a7931b41f | 313 | if(base==0){ |
| earlz | 0:217a7931b41f | 314 | freg.zf=1; |
| earlz | 0:217a7931b41f | 315 | }else{ |
| earlz | 0:217a7931b41f | 316 | freg.zf=0; |
| earlz | 0:217a7931b41f | 317 | } |
| earlz | 0:217a7931b41f | 318 | freg.of=0; |
| earlz | 0:217a7931b41f | 319 | return base; |
| earlz | 0:217a7931b41f | 320 | } |
| earlz | 0:217a7931b41f | 321 | |
| earlz | 0:217a7931b41f | 322 | uint16_t x86CPU::ShiftLogicalLeft16(uint16_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 323 | count&=0x1F; //only use bottom 5 bits |
| earlz | 0:217a7931b41f | 324 | if(count==0){ |
| earlz | 0:217a7931b41f | 325 | CalculatePF16(base); |
| earlz | 0:217a7931b41f | 326 | CalculateSF16(base); |
| earlz | 0:217a7931b41f | 327 | freg.zf=1; |
| earlz | 0:217a7931b41f | 328 | return base; |
| earlz | 0:217a7931b41f | 329 | } |
| earlz | 0:217a7931b41f | 330 | freg.of=(base&0x8000)>>15; |
| earlz | 0:217a7931b41f | 331 | freg.cf=((base<<(count-1))&0x8000)>>15; |
| earlz | 0:217a7931b41f | 332 | base=base<<count; |
| earlz | 0:217a7931b41f | 333 | freg.of=freg.of^((base&0x8000)>>15); //if the sign bit changed, then set it to 1 |
| earlz | 0:217a7931b41f | 334 | CalculatePF16(base); |
| earlz | 0:217a7931b41f | 335 | CalculateSF16(base); |
| earlz | 0:217a7931b41f | 336 | if(base==0){ |
| earlz | 0:217a7931b41f | 337 | freg.zf=1; |
| earlz | 0:217a7931b41f | 338 | }else{ |
| earlz | 0:217a7931b41f | 339 | freg.zf=0; |
| earlz | 0:217a7931b41f | 340 | } |
| earlz | 0:217a7931b41f | 341 | return base; |
| earlz | 0:217a7931b41f | 342 | } |
| earlz | 0:217a7931b41f | 343 | |
| earlz | 0:217a7931b41f | 344 | /**ToDo: Possibly adapt BOCHS source so that we avoid this loop crap...**/ |
| earlz | 0:217a7931b41f | 345 | uint8_t x86CPU::RotateRight8(uint8_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 346 | freg.of=(base&0x80)>>7; |
| earlz | 0:217a7931b41f | 347 | while(count>0){ |
| earlz | 0:217a7931b41f | 348 | freg.cf=(base&0x01); |
| earlz | 0:217a7931b41f | 349 | base=(freg.cf<<7)|(base>>1); |
| earlz | 0:217a7931b41f | 350 | count--; |
| earlz | 0:217a7931b41f | 351 | } |
| earlz | 0:217a7931b41f | 352 | freg.of=freg.of^((base&0x80)>>7); |
| earlz | 0:217a7931b41f | 353 | return base; |
| earlz | 0:217a7931b41f | 354 | } |
| earlz | 0:217a7931b41f | 355 | |
| earlz | 0:217a7931b41f | 356 | uint16_t x86CPU::RotateRight16(uint16_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 357 | freg.of=(base&0x8000)>>15; |
| earlz | 0:217a7931b41f | 358 | while(count>0){ |
| earlz | 0:217a7931b41f | 359 | freg.cf=(base&0x01); |
| earlz | 0:217a7931b41f | 360 | base=(freg.cf<<15)|(base>>1); |
| earlz | 0:217a7931b41f | 361 | count--; |
| earlz | 0:217a7931b41f | 362 | } |
| earlz | 0:217a7931b41f | 363 | freg.of=freg.of^((base&0x80)>>15); |
| earlz | 0:217a7931b41f | 364 | return base; |
| earlz | 0:217a7931b41f | 365 | } |
| earlz | 0:217a7931b41f | 366 | |
| earlz | 0:217a7931b41f | 367 | uint8_t x86CPU::RotateLeft8(uint8_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 368 | freg.of=(base&0x80)>>7; |
| earlz | 0:217a7931b41f | 369 | while(count>0){ |
| earlz | 0:217a7931b41f | 370 | freg.cf=(base&0x80)>>7; |
| earlz | 0:217a7931b41f | 371 | base=(freg.cf)|(base<<1); |
| earlz | 0:217a7931b41f | 372 | count--; |
| earlz | 0:217a7931b41f | 373 | } |
| earlz | 0:217a7931b41f | 374 | freg.of=freg.of^((base&0x80)>>7); |
| earlz | 0:217a7931b41f | 375 | return base; |
| earlz | 0:217a7931b41f | 376 | } |
| earlz | 0:217a7931b41f | 377 | |
| earlz | 0:217a7931b41f | 378 | uint16_t x86CPU::RotateLeft16(uint16_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 379 | freg.of=(base&0x8000)>>15; |
| earlz | 0:217a7931b41f | 380 | while(count>0){ |
| earlz | 0:217a7931b41f | 381 | freg.cf=(base&0x8000)>>15; |
| earlz | 0:217a7931b41f | 382 | base=(freg.cf)|(base<<1); |
| earlz | 0:217a7931b41f | 383 | count--; |
| earlz | 0:217a7931b41f | 384 | } |
| earlz | 0:217a7931b41f | 385 | freg.of=freg.of^((base&0x8000)>>15); |
| earlz | 0:217a7931b41f | 386 | return base; |
| earlz | 0:217a7931b41f | 387 | } |
| earlz | 0:217a7931b41f | 388 | |
| earlz | 0:217a7931b41f | 389 | uint8_t x86CPU::RotateCarryLeft8(uint8_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 390 | freg.of=(base&0x80)>>7; |
| earlz | 0:217a7931b41f | 391 | while(count>0){ |
| earlz | 0:217a7931b41f | 392 | freg.r0=freg.cf; //reserved bit as a temp variable... |
| earlz | 0:217a7931b41f | 393 | freg.cf=(base&0x80)>>7; |
| earlz | 0:217a7931b41f | 394 | base=(base<<1); |
| earlz | 0:217a7931b41f | 395 | base|=freg.r0; //puts (old)CF in it's place |
| earlz | 0:217a7931b41f | 396 | count--; |
| earlz | 0:217a7931b41f | 397 | } |
| earlz | 0:217a7931b41f | 398 | freg.of=freg.of^((base&0x80)>>7); |
| earlz | 0:217a7931b41f | 399 | return base; |
| earlz | 0:217a7931b41f | 400 | } |
| earlz | 0:217a7931b41f | 401 | |
| earlz | 0:217a7931b41f | 402 | uint16_t x86CPU::RotateCarryLeft16(uint16_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 403 | freg.of=(base&0x8000)>>15; |
| earlz | 0:217a7931b41f | 404 | while(count>0){ |
| earlz | 0:217a7931b41f | 405 | freg.r0=freg.cf; //reserved bit as a temp variable... |
| earlz | 0:217a7931b41f | 406 | freg.cf=(base&0x8000)>>15; |
| earlz | 0:217a7931b41f | 407 | base=(base<<1); |
| earlz | 0:217a7931b41f | 408 | base=(base&0xFFFE)|freg.r0; //zeros the 0 bit and puts (old)CF in it's place |
| earlz | 0:217a7931b41f | 409 | count--; |
| earlz | 0:217a7931b41f | 410 | } |
| earlz | 0:217a7931b41f | 411 | freg.of=freg.of^((base&0x8000)>>15); |
| earlz | 0:217a7931b41f | 412 | return base; |
| earlz | 0:217a7931b41f | 413 | } |
| earlz | 0:217a7931b41f | 414 | |
| earlz | 0:217a7931b41f | 415 | uint8_t x86CPU::RotateCarryRight8(uint8_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 416 | freg.of=(base&0x80)>>7; |
| earlz | 0:217a7931b41f | 417 | while(count>0){ |
| earlz | 0:217a7931b41f | 418 | freg.r0=freg.cf; |
| earlz | 0:217a7931b41f | 419 | freg.cf=(base&0x01); |
| earlz | 0:217a7931b41f | 420 | base=(freg.r0<<7)|(base>>1); |
| earlz | 0:217a7931b41f | 421 | count--; |
| earlz | 0:217a7931b41f | 422 | } |
| earlz | 0:217a7931b41f | 423 | freg.of=freg.of^((base&0x80)>>7); |
| earlz | 0:217a7931b41f | 424 | return base; |
| earlz | 0:217a7931b41f | 425 | } |
| earlz | 0:217a7931b41f | 426 | |
| earlz | 0:217a7931b41f | 427 | uint16_t x86CPU::RotateCarryRight16(uint16_t base,uint8_t count){ |
| earlz | 0:217a7931b41f | 428 | freg.of=(base&0x8000)>>15; |
| earlz | 0:217a7931b41f | 429 | while(count>0){ |
| earlz | 0:217a7931b41f | 430 | freg.r0=freg.cf; |
| earlz | 0:217a7931b41f | 431 | freg.cf=(base&0x01); |
| earlz | 0:217a7931b41f | 432 | base=(freg.r0<<15)|(base>>1); |
| earlz | 0:217a7931b41f | 433 | count--; |
| earlz | 0:217a7931b41f | 434 | } |
| earlz | 0:217a7931b41f | 435 | freg.of=freg.of^((base&0x8000)>>15); |
| earlz | 0:217a7931b41f | 436 | return base; |
| earlz | 0:217a7931b41f | 437 | } |
| earlz | 0:217a7931b41f | 438 | |
| earlz | 0:217a7931b41f | 439 | |
| earlz | 0:217a7931b41f | 440 | |
| earlz | 0:217a7931b41f | 441 | |
| earlz | 0:217a7931b41f | 442 | |
| earlz | 0:217a7931b41f | 443 | |
| earlz | 0:217a7931b41f | 444 | |
| earlz | 0:217a7931b41f | 445 | |
| earlz | 0:217a7931b41f | 446 | |
| earlz | 0:217a7931b41f | 447 | void x86CPU::op16_sub_al_imm8(){ //0x2C |
| earlz | 0:217a7931b41f | 448 | *regs8[AL]=Sub8(*regs8[AL],op_cache[1]); |
| earlz | 0:217a7931b41f | 449 | eip++; |
| earlz | 0:217a7931b41f | 450 | } |
| earlz | 0:217a7931b41f | 451 | |
| earlz | 0:217a7931b41f | 452 | void x86CPU::op16_sub_ax_imm16(){ //0x2D..yay! 2D and not 3! |
| earlz | 0:217a7931b41f | 453 | *regs16[AX]=Sub16(*regs16[AX],*(uint16_t*)&op_cache[1]); |
| earlz | 0:217a7931b41f | 454 | eip+=2; |
| earlz | 0:217a7931b41f | 455 | } |
| earlz | 0:217a7931b41f | 456 | |
| earlz | 0:217a7931b41f | 457 | void x86CPU::op16_sub_rm8_r8(){ |
| earlz | 0:217a7931b41f | 458 | eip++; |
| earlz | 0:217a7931b41f | 459 | ModRM16 rm8(this); |
| earlz | 0:217a7931b41f | 460 | rm8.WriteByter(Sub8(rm8.ReadByter(),*regs8[rm8.GetExtra()])); |
| earlz | 0:217a7931b41f | 461 | //finally learning the power of deconstructors! |
| earlz | 0:217a7931b41f | 462 | } |
| earlz | 0:217a7931b41f | 463 | |
| earlz | 0:217a7931b41f | 464 | void x86CPU::op16_sub_rm16_r16(){ |
| earlz | 0:217a7931b41f | 465 | eip++; |
| earlz | 0:217a7931b41f | 466 | ModRM16 rm16(this); |
| earlz | 0:217a7931b41f | 467 | rm16.WriteWordr(Sub16(rm16.ReadWordr(),*regs16[rm16.GetExtra()])); |
| earlz | 0:217a7931b41f | 468 | } |
| earlz | 0:217a7931b41f | 469 | void x86CPU::op16_sub_r8_rm8(){ |
| earlz | 0:217a7931b41f | 470 | eip++; |
| earlz | 0:217a7931b41f | 471 | ModRM16 rm8(this); |
| earlz | 0:217a7931b41f | 472 | *regs8[rm8.GetExtra()]=Sub8(*regs8[rm8.GetExtra()],rm8.ReadByter()); |
| earlz | 0:217a7931b41f | 473 | } |
| earlz | 0:217a7931b41f | 474 | |
| earlz | 0:217a7931b41f | 475 | void x86CPU::op16_sub_r16_rm16(){ |
| earlz | 0:217a7931b41f | 476 | eip++; |
| earlz | 0:217a7931b41f | 477 | ModRM16 rm16(this); |
| earlz | 0:217a7931b41f | 478 | *regs16[rm16.GetExtra()]=Sub16(*regs16[rm16.GetExtra()],rm16.ReadWordr()); |
| earlz | 0:217a7931b41f | 479 | } |
| earlz | 0:217a7931b41f | 480 | |
| earlz | 0:217a7931b41f | 481 | void x86CPU::op16_sub_rm8_imm8(ModRM16 &rm8){ //group 0x80 /5 |
| earlz | 0:217a7931b41f | 482 | rm8.WriteByter(Sub8(rm8.ReadByter(),ReadByte(cCS,eip+rm8.GetLength()))); |
| earlz | 0:217a7931b41f | 483 | } |
| earlz | 0:217a7931b41f | 484 | |
| earlz | 0:217a7931b41f | 485 | void x86CPU::op16_sub_rm16_imm16(ModRM16 &rm){ //Group 0x81 /5 |
| earlz | 0:217a7931b41f | 486 | rm.WriteWordr(Sub16(rm.ReadWordr(),ReadWord(cCS,eip+rm.GetLength()))); |
| earlz | 0:217a7931b41f | 487 | } |
| earlz | 0:217a7931b41f | 488 | |
| earlz | 0:217a7931b41f | 489 | void x86CPU::op16_sub_rm16_imm8(ModRM16 &rm){ //group 0x83 /5 |
| earlz | 0:217a7931b41f | 490 | rm.WriteWordr(Sub16(rm.ReadWordr(),SignExtend8(ReadByte(cCS,eip+rm.GetLength())))); |
| earlz | 0:217a7931b41f | 491 | } |
| earlz | 0:217a7931b41f | 492 | |
| earlz | 0:217a7931b41f | 493 | /****/ |
| earlz | 0:217a7931b41f | 494 | void x86CPU::op16_sbb_al_imm8(){ |
| earlz | 0:217a7931b41f | 495 | *regs8[AL]=Sub8(*regs8[AL],op_cache[1]-freg.cf); |
| earlz | 0:217a7931b41f | 496 | eip++; |
| earlz | 0:217a7931b41f | 497 | } |
| earlz | 0:217a7931b41f | 498 | |
| earlz | 0:217a7931b41f | 499 | void x86CPU::op16_sbb_ax_imm16(){ |
| earlz | 0:217a7931b41f | 500 | *regs16[AX]=Sub16(*regs16[AX],*(uint16_t*)&op_cache[1]-freg.cf); |
| earlz | 0:217a7931b41f | 501 | eip++; |
| earlz | 0:217a7931b41f | 502 | eip++; |
| earlz | 0:217a7931b41f | 503 | } |
| earlz | 0:217a7931b41f | 504 | |
| earlz | 0:217a7931b41f | 505 | void x86CPU::op16_sbb_rm8_r8(){ |
| earlz | 0:217a7931b41f | 506 | eip++; |
| earlz | 0:217a7931b41f | 507 | ModRM16 rm8(this); |
| earlz | 0:217a7931b41f | 508 | rm8.WriteByter(Sub8(rm8.ReadByter(),*regs8[rm8.GetExtra()]-freg.cf)); |
| earlz | 0:217a7931b41f | 509 | } |
| earlz | 0:217a7931b41f | 510 | |
| earlz | 0:217a7931b41f | 511 | void x86CPU::op16_sbb_rm16_r16(){ |
| earlz | 0:217a7931b41f | 512 | eip++; |
| earlz | 0:217a7931b41f | 513 | ModRM16 rm16(this); |
| earlz | 0:217a7931b41f | 514 | rm16.WriteWordr(Sub16(rm16.ReadWordr(),*regs16[rm16.GetExtra()]-freg.cf)); |
| earlz | 0:217a7931b41f | 515 | } |
| earlz | 0:217a7931b41f | 516 | void x86CPU::op16_sbb_r8_rm8(){ |
| earlz | 0:217a7931b41f | 517 | eip++; |
| earlz | 0:217a7931b41f | 518 | ModRM16 rm8(this); |
| earlz | 0:217a7931b41f | 519 | *regs8[rm8.GetExtra()]=Sub8(*regs8[rm8.GetExtra()],rm8.ReadByter()-freg.cf); |
| earlz | 0:217a7931b41f | 520 | } |
| earlz | 0:217a7931b41f | 521 | |
| earlz | 0:217a7931b41f | 522 | void x86CPU::op16_sbb_r16_rm16(){ |
| earlz | 0:217a7931b41f | 523 | eip++; |
| earlz | 0:217a7931b41f | 524 | ModRM16 rm16(this); |
| earlz | 0:217a7931b41f | 525 | *regs16[rm16.GetExtra()]=Sub16(*regs16[rm16.GetExtra()],rm16.ReadWordr()-freg.cf); |
| earlz | 0:217a7931b41f | 526 | } |
| earlz | 0:217a7931b41f | 527 | |
| earlz | 0:217a7931b41f | 528 | void x86CPU::op16_sbb_rm8_imm8(ModRM16 &rm8){ //group 0x80 |
| earlz | 0:217a7931b41f | 529 | rm8.WriteByter(Sub8(rm8.ReadByter(),ReadByte(cCS,eip+rm8.GetLength())-freg.cf)); |
| earlz | 0:217a7931b41f | 530 | } |
| earlz | 0:217a7931b41f | 531 | |
| earlz | 0:217a7931b41f | 532 | void x86CPU::op16_sbb_rm16_imm16(ModRM16 &rm){ //Group 0x81 |
| earlz | 0:217a7931b41f | 533 | rm.WriteWordr(Sub16(rm.ReadWordr(),ReadWord(cCS,eip+rm.GetLength())-freg.cf)); |
| earlz | 0:217a7931b41f | 534 | } |
| earlz | 0:217a7931b41f | 535 | |
| earlz | 0:217a7931b41f | 536 | void x86CPU::op16_sbb_rm16_imm8(ModRM16 &rm){ //group 0x83 |
| earlz | 0:217a7931b41f | 537 | rm.WriteWordr(Sub16(rm.ReadWordr(),SignExtend8(ReadByte(cCS,eip+rm.GetLength())-freg.cf))); |
| earlz | 0:217a7931b41f | 538 | } |
| earlz | 0:217a7931b41f | 539 | |
| earlz | 0:217a7931b41f | 540 | |
| earlz | 0:217a7931b41f | 541 | void x86CPU::op16_dec_r16(){ //0x48+r |
| earlz | 0:217a7931b41f | 542 | freg.r0=freg.cf; |
| earlz | 0:217a7931b41f | 543 | *regs16[(op_cache[0]-0x48)]=Sub16(*regs16[(op_cache[0]-0x48)],1); |
| earlz | 0:217a7931b41f | 544 | freg.cf=freg.r0; |
| earlz | 0:217a7931b41f | 545 | } |
| earlz | 0:217a7931b41f | 546 | |
| earlz | 0:217a7931b41f | 547 | void x86CPU::op16_dec_rm8(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 548 | freg.r0=freg.cf; |
| earlz | 0:217a7931b41f | 549 | rm.WriteByter(Sub8(rm.ReadByter(),1)); |
| earlz | 0:217a7931b41f | 550 | freg.cf=freg.r0; |
| earlz | 0:217a7931b41f | 551 | } |
| earlz | 0:217a7931b41f | 552 | |
| earlz | 0:217a7931b41f | 553 | void x86CPU::op16_dec_rm16(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 554 | freg.r0=freg.cf; |
| earlz | 0:217a7931b41f | 555 | rm.WriteWordr(Sub16(rm.ReadWordr(),1)); |
| earlz | 0:217a7931b41f | 556 | freg.cf=freg.r0; |
| earlz | 0:217a7931b41f | 557 | } |
| earlz | 0:217a7931b41f | 558 | |
| earlz | 0:217a7931b41f | 559 | |
| earlz | 0:217a7931b41f | 560 | |
| earlz | 0:217a7931b41f | 561 | |
| earlz | 0:217a7931b41f | 562 | |
| earlz | 0:217a7931b41f | 563 | |
| earlz | 0:217a7931b41f | 564 | //cmp and sub are so similar, that they are both going in here... |
| earlz | 0:217a7931b41f | 565 | void x86CPU::op16_cmp_al_imm8(){ |
| earlz | 0:217a7931b41f | 566 | Sub8(*regs8[AL],op_cache[1]); |
| earlz | 0:217a7931b41f | 567 | eip++; |
| earlz | 0:217a7931b41f | 568 | } |
| earlz | 0:217a7931b41f | 569 | |
| earlz | 0:217a7931b41f | 570 | void x86CPU::op16_cmp_ax_imm16(){ |
| earlz | 0:217a7931b41f | 571 | Sub16(*regs16[AX],*(uint16_t*)&op_cache[1]); |
| earlz | 0:217a7931b41f | 572 | eip+=2; |
| earlz | 0:217a7931b41f | 573 | } |
| earlz | 0:217a7931b41f | 574 | |
| earlz | 0:217a7931b41f | 575 | void x86CPU::op16_cmp_rm8_r8(){ |
| earlz | 0:217a7931b41f | 576 | eip++; |
| earlz | 0:217a7931b41f | 577 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 578 | Sub8(rm.ReadByter(),*regs8[rm.GetExtra()]); |
| earlz | 0:217a7931b41f | 579 | } |
| earlz | 0:217a7931b41f | 580 | |
| earlz | 0:217a7931b41f | 581 | void x86CPU::op16_cmp_rm16_r16(){ |
| earlz | 0:217a7931b41f | 582 | eip++; |
| earlz | 0:217a7931b41f | 583 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 584 | Sub16(rm.ReadWordr(),*regs16[rm.GetExtra()]); |
| earlz | 0:217a7931b41f | 585 | } |
| earlz | 0:217a7931b41f | 586 | |
| earlz | 0:217a7931b41f | 587 | void x86CPU::op16_cmp_r8_rm8(){ |
| earlz | 0:217a7931b41f | 588 | eip++; |
| earlz | 0:217a7931b41f | 589 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 590 | Sub8(*regs16[rm.GetExtra()],rm.ReadByter()); |
| earlz | 0:217a7931b41f | 591 | } |
| earlz | 0:217a7931b41f | 592 | |
| earlz | 0:217a7931b41f | 593 | void x86CPU::op16_cmp_r16_rm16(){ |
| earlz | 0:217a7931b41f | 594 | eip++; |
| earlz | 0:217a7931b41f | 595 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 596 | Sub16(*regs16[rm.GetExtra()],rm.ReadWordr()); |
| earlz | 0:217a7931b41f | 597 | } |
| earlz | 0:217a7931b41f | 598 | |
| earlz | 0:217a7931b41f | 599 | void x86CPU::op16_cmp_rm8_imm8(ModRM16 &rm){ //group 80 /7 |
| earlz | 0:217a7931b41f | 600 | Sub8(rm.ReadByter(),ReadByte(cCS,eip+rm.GetLength())); |
| earlz | 0:217a7931b41f | 601 | } |
| earlz | 0:217a7931b41f | 602 | |
| earlz | 0:217a7931b41f | 603 | void x86CPU::op16_cmp_rm16_imm16(ModRM16 &rm){ //group 81 /7 |
| earlz | 0:217a7931b41f | 604 | Sub16(rm.ReadWordr(),ReadWord(cCS,eip+rm.GetLength())); |
| earlz | 0:217a7931b41f | 605 | } |
| earlz | 0:217a7931b41f | 606 | |
| earlz | 0:217a7931b41f | 607 | void x86CPU::op16_cmp_rm16_imm8(ModRM16 &rm){ //group 83 /7 |
| earlz | 0:217a7931b41f | 608 | Sub16(rm.ReadWordr(),SignExtend8(ReadByte(cCS,eip+rm.GetLength()))); |
| earlz | 0:217a7931b41f | 609 | } |
| earlz | 0:217a7931b41f | 610 | |
| earlz | 0:217a7931b41f | 611 | |
| earlz | 0:217a7931b41f | 612 | |
| earlz | 0:217a7931b41f | 613 | |
| earlz | 0:217a7931b41f | 614 | |
| earlz | 0:217a7931b41f | 615 | |
| earlz | 0:217a7931b41f | 616 | void x86CPU::op16_add_al_imm8(){ |
| earlz | 0:217a7931b41f | 617 | *regs8[AL]=Add8(*regs8[AL],op_cache[1]); |
| earlz | 0:217a7931b41f | 618 | eip++; |
| earlz | 0:217a7931b41f | 619 | } |
| earlz | 0:217a7931b41f | 620 | |
| earlz | 0:217a7931b41f | 621 | void x86CPU::op16_add_ax_imm8(){ |
| earlz | 0:217a7931b41f | 622 | *regs16[AX]=Add16(*regs16[AX],*(uint16_t*)&op_cache[1]); |
| earlz | 0:217a7931b41f | 623 | eip++; |
| earlz | 0:217a7931b41f | 624 | eip++; |
| earlz | 0:217a7931b41f | 625 | } |
| earlz | 0:217a7931b41f | 626 | |
| earlz | 0:217a7931b41f | 627 | void x86CPU::op16_add_rm8_r8(){ |
| earlz | 0:217a7931b41f | 628 | eip++; |
| earlz | 0:217a7931b41f | 629 | ModRM16 rm8(this); |
| earlz | 0:217a7931b41f | 630 | rm8.WriteByter(Add8(rm8.ReadByter(),*regs8[rm8.GetExtra()])); |
| earlz | 0:217a7931b41f | 631 | } |
| earlz | 0:217a7931b41f | 632 | |
| earlz | 0:217a7931b41f | 633 | void x86CPU::op16_add_rm16_r16(){ |
| earlz | 0:217a7931b41f | 634 | eip++; |
| earlz | 0:217a7931b41f | 635 | ModRM16 rm16(this); |
| earlz | 0:217a7931b41f | 636 | rm16.WriteWordr(Add16(rm16.ReadWordr(),*regs16[rm16.GetExtra()])); |
| earlz | 0:217a7931b41f | 637 | } |
| earlz | 0:217a7931b41f | 638 | |
| earlz | 0:217a7931b41f | 639 | void x86CPU::op16_add_r8_rm8(){ |
| earlz | 0:217a7931b41f | 640 | eip++; |
| earlz | 0:217a7931b41f | 641 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 642 | *regs8[rm.GetExtra()]=Add8(*regs8[rm.GetExtra()],rm.ReadByter()); |
| earlz | 0:217a7931b41f | 643 | } |
| earlz | 0:217a7931b41f | 644 | |
| earlz | 0:217a7931b41f | 645 | void x86CPU::op16_add_r16_rm16(){ |
| earlz | 0:217a7931b41f | 646 | eip++; |
| earlz | 0:217a7931b41f | 647 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 648 | *regs16[rm.GetExtra()]=Add16(*regs16[rm.GetExtra()],rm.ReadWordr()); |
| earlz | 0:217a7931b41f | 649 | } |
| earlz | 0:217a7931b41f | 650 | |
| earlz | 0:217a7931b41f | 651 | void x86CPU::op16_add_rm8_imm8(ModRM16 &rm){ //Group 0x80 /0 |
| earlz | 0:217a7931b41f | 652 | rm.WriteByter(Add8(rm.ReadWordr(),ReadByte(cCS,eip+rm.GetLength()))); |
| earlz | 0:217a7931b41f | 653 | } |
| earlz | 0:217a7931b41f | 654 | |
| earlz | 0:217a7931b41f | 655 | void x86CPU::op16_add_rm16_imm16(ModRM16 &rm){ //Group 0x81 /0 |
| earlz | 0:217a7931b41f | 656 | rm.WriteWordr(Add16(rm.ReadWordr(),ReadWord(cCS,eip+rm.GetLength()))); |
| earlz | 0:217a7931b41f | 657 | } |
| earlz | 0:217a7931b41f | 658 | |
| earlz | 0:217a7931b41f | 659 | void x86CPU::op16_add_rm16_imm8(ModRM16 &rm){ //group 0x83 /0 |
| earlz | 0:217a7931b41f | 660 | rm.WriteWordr(Add16(rm.ReadWordr(),SignExtend8(ReadByte(cCS,eip+rm.GetLength())))); |
| earlz | 0:217a7931b41f | 661 | } |
| earlz | 0:217a7931b41f | 662 | |
| earlz | 0:217a7931b41f | 663 | |
| earlz | 0:217a7931b41f | 664 | /****/ |
| earlz | 0:217a7931b41f | 665 | void x86CPU::op16_adc_al_imm8(){ |
| earlz | 0:217a7931b41f | 666 | *regs8[AL]=Add8(*regs8[AL],op_cache[1]+freg.cf); |
| earlz | 0:217a7931b41f | 667 | eip++; |
| earlz | 0:217a7931b41f | 668 | } |
| earlz | 0:217a7931b41f | 669 | |
| earlz | 0:217a7931b41f | 670 | void x86CPU::op16_adc_ax_imm8(){ |
| earlz | 0:217a7931b41f | 671 | *regs16[AX]=Add16(*regs16[AX],*(uint16_t*)&op_cache[1]+freg.cf); |
| earlz | 0:217a7931b41f | 672 | eip++; |
| earlz | 0:217a7931b41f | 673 | eip++; |
| earlz | 0:217a7931b41f | 674 | } |
| earlz | 0:217a7931b41f | 675 | |
| earlz | 0:217a7931b41f | 676 | void x86CPU::op16_adc_rm8_r8(){ |
| earlz | 0:217a7931b41f | 677 | eip++; |
| earlz | 0:217a7931b41f | 678 | ModRM16 rm8(this); |
| earlz | 0:217a7931b41f | 679 | rm8.WriteByter(Add8(rm8.ReadByter(),*regs8[rm8.GetExtra()]+freg.cf)); |
| earlz | 0:217a7931b41f | 680 | } |
| earlz | 0:217a7931b41f | 681 | |
| earlz | 0:217a7931b41f | 682 | void x86CPU::op16_adc_rm16_r16(){ |
| earlz | 0:217a7931b41f | 683 | eip++; |
| earlz | 0:217a7931b41f | 684 | ModRM16 rm16(this); |
| earlz | 0:217a7931b41f | 685 | rm16.WriteWordr(Add16(rm16.ReadWordr(),*regs16[rm16.GetExtra()]+freg.cf)); |
| earlz | 0:217a7931b41f | 686 | } |
| earlz | 0:217a7931b41f | 687 | |
| earlz | 0:217a7931b41f | 688 | void x86CPU::op16_adc_r8_rm8(){ |
| earlz | 0:217a7931b41f | 689 | eip++; |
| earlz | 0:217a7931b41f | 690 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 691 | *regs8[rm.GetExtra()]=Add8(*regs8[rm.GetExtra()],rm.ReadByter()+freg.cf); |
| earlz | 0:217a7931b41f | 692 | } |
| earlz | 0:217a7931b41f | 693 | |
| earlz | 0:217a7931b41f | 694 | void x86CPU::op16_adc_r16_rm16(){ |
| earlz | 0:217a7931b41f | 695 | eip++; |
| earlz | 0:217a7931b41f | 696 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 697 | *regs16[rm.GetExtra()]=Add16(*regs16[rm.GetExtra()],rm.ReadWordr()+freg.cf); |
| earlz | 0:217a7931b41f | 698 | } |
| earlz | 0:217a7931b41f | 699 | |
| earlz | 0:217a7931b41f | 700 | void x86CPU::op16_adc_rm8_imm8(ModRM16 &rm){ //Group 0x80 /2 |
| earlz | 0:217a7931b41f | 701 | rm.WriteByter(Add8(rm.ReadWordr(),ReadByte(cCS,eip+rm.GetLength())+freg.cf)); |
| earlz | 0:217a7931b41f | 702 | } |
| earlz | 0:217a7931b41f | 703 | |
| earlz | 0:217a7931b41f | 704 | void x86CPU::op16_adc_rm16_imm16(ModRM16 &rm){ //Group 0x81 /2 |
| earlz | 0:217a7931b41f | 705 | rm.WriteWordr(Add16(rm.ReadWordr(),ReadWord(cCS,eip+rm.GetLength())+freg.cf)); |
| earlz | 0:217a7931b41f | 706 | } |
| earlz | 0:217a7931b41f | 707 | |
| earlz | 0:217a7931b41f | 708 | void x86CPU::op16_adc_rm16_imm8(ModRM16 &rm){ //group 0x83 /2 |
| earlz | 0:217a7931b41f | 709 | rm.WriteWordr(Add16(rm.ReadWordr(),SignExtend8(ReadByte(cCS,eip+rm.GetLength()))+freg.cf)); |
| earlz | 0:217a7931b41f | 710 | } |
| earlz | 0:217a7931b41f | 711 | |
| earlz | 0:217a7931b41f | 712 | |
| earlz | 0:217a7931b41f | 713 | |
| earlz | 0:217a7931b41f | 714 | void x86CPU::op16_inc_r16(){ //0x40+r |
| earlz | 0:217a7931b41f | 715 | freg.r0=freg.cf; |
| earlz | 0:217a7931b41f | 716 | *regs16[(op_cache[0]-0x40)]=Add16(*regs16[(op_cache[0]-0x40)],1); |
| earlz | 0:217a7931b41f | 717 | freg.cf=freg.r0; |
| earlz | 0:217a7931b41f | 718 | } |
| earlz | 0:217a7931b41f | 719 | |
| earlz | 0:217a7931b41f | 720 | void x86CPU::op16_inc_rm8(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 721 | freg.r0=freg.cf; //yay for reserved flags! |
| earlz | 0:217a7931b41f | 722 | rm.WriteByter(Add8(rm.ReadByter(),1)); |
| earlz | 0:217a7931b41f | 723 | freg.cf=freg.r0; |
| earlz | 0:217a7931b41f | 724 | } |
| earlz | 0:217a7931b41f | 725 | |
| earlz | 0:217a7931b41f | 726 | void x86CPU::op16_inc_rm16(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 727 | freg.r0=freg.cf; |
| earlz | 0:217a7931b41f | 728 | rm.WriteWordr(Add16(rm.ReadWordr(),1)); |
| earlz | 0:217a7931b41f | 729 | freg.cf=freg.r0; |
| earlz | 0:217a7931b41f | 730 | } |
| earlz | 0:217a7931b41f | 731 | |
| earlz | 0:217a7931b41f | 732 | void x86CPU::op16_neg_rm8(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 733 | uint8_t tmp=rm.ReadByter(); |
| earlz | 0:217a7931b41f | 734 | if(tmp==0xFF){ |
| earlz | 0:217a7931b41f | 735 | freg.of=1; |
| earlz | 0:217a7931b41f | 736 | return; |
| earlz | 0:217a7931b41f | 737 | } |
| earlz | 0:217a7931b41f | 738 | rm.WriteByter(Sub8(0,tmp)); |
| earlz | 0:217a7931b41f | 739 | if(tmp==0){ |
| earlz | 0:217a7931b41f | 740 | freg.cf=0; |
| earlz | 0:217a7931b41f | 741 | }else{ |
| earlz | 0:217a7931b41f | 742 | freg.cf=1; |
| earlz | 0:217a7931b41f | 743 | } |
| earlz | 0:217a7931b41f | 744 | } |
| earlz | 0:217a7931b41f | 745 | void x86CPU::op16_neg_rm16(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 746 | uint16_t tmp=rm.ReadWordr(); |
| earlz | 0:217a7931b41f | 747 | if(tmp==0xFFFF){ |
| earlz | 0:217a7931b41f | 748 | freg.of=1; |
| earlz | 0:217a7931b41f | 749 | return; |
| earlz | 0:217a7931b41f | 750 | } |
| earlz | 0:217a7931b41f | 751 | rm.WriteWordr(Sub16(0,tmp)); |
| earlz | 0:217a7931b41f | 752 | if(tmp==0){ |
| earlz | 0:217a7931b41f | 753 | freg.cf=0; |
| earlz | 0:217a7931b41f | 754 | }else{ |
| earlz | 0:217a7931b41f | 755 | freg.cf=1; |
| earlz | 0:217a7931b41f | 756 | } |
| earlz | 0:217a7931b41f | 757 | } |
| earlz | 0:217a7931b41f | 758 | |
| earlz | 0:217a7931b41f | 759 | |
| earlz | 0:217a7931b41f | 760 | |
| earlz | 0:217a7931b41f | 761 | void x86CPU::op16_div_rm8(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 762 | if(rm.ReadByter()==0){ |
| earlz | 0:217a7931b41f | 763 | Onx86LibError(); |
| earlz | 0:217a7931b41f | 764 | //throw CpuInt_excp(DIV0_IEXCP); |
| earlz | 0:217a7931b41f | 765 | } |
| earlz | 0:217a7931b41f | 766 | if(((*regs16[AX])/rm.ReadByter())>0xFF){ |
| earlz | 0:217a7931b41f | 767 | Onx86LibError(); |
| earlz | 0:217a7931b41f | 768 | //throw CpuInt_excp(DIV0_IEXCP); |
| earlz | 0:217a7931b41f | 769 | } |
| earlz | 0:217a7931b41f | 770 | *regs8[AL]=(*regs16[AX])/rm.ReadByter(); |
| earlz | 0:217a7931b41f | 771 | *regs8[AH]=(*regs16[AX])%rm.ReadByter(); |
| earlz | 0:217a7931b41f | 772 | } |
| earlz | 0:217a7931b41f | 773 | |
| earlz | 0:217a7931b41f | 774 | void x86CPU::op16_div_rm16(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 775 | if(rm.ReadWordr()==0){ |
| earlz | 0:217a7931b41f | 776 | Onx86LibError(); |
| earlz | 0:217a7931b41f | 777 | //throw CpuInt_excp(DIV0_IEXCP); |
| earlz | 0:217a7931b41f | 778 | } |
| earlz | 0:217a7931b41f | 779 | if((((*regs16[DX]<<16)|(*regs16[AX]))/rm.ReadWordr())>0xFFFF){ |
| earlz | 0:217a7931b41f | 780 | Onx86LibError(); |
| earlz | 0:217a7931b41f | 781 | //throw CpuInt_excp(DIV0_IEXCP); |
| earlz | 0:217a7931b41f | 782 | } |
| earlz | 0:217a7931b41f | 783 | *regs8[AX]=((*regs16[DX]<<16)|(*regs16[AX]))/rm.ReadWordr(); |
| earlz | 0:217a7931b41f | 784 | *regs8[DX]=((*regs16[DX]<<16)|(*regs16[AX]))%rm.ReadWordr(); |
| earlz | 0:217a7931b41f | 785 | } |
| earlz | 0:217a7931b41f | 786 | |
| earlz | 0:217a7931b41f | 787 | |
| earlz | 0:217a7931b41f | 788 | void x86CPU::op16_idiv_rm8(ModRM16 &rm){ //This WORKS! both signed, and unsigned! |
| earlz | 0:217a7931b41f | 789 | //grrr...who the crap does signed division anyway!? |
| earlz | 0:217a7931b41f | 790 | if(rm.ReadByter()==0){ |
| earlz | 0:217a7931b41f | 791 | Onx86LibError(); |
| earlz | 0:217a7931b41f | 792 | //throw CpuInt_excp(DIV0_IEXCP); |
| earlz | 0:217a7931b41f | 793 | } |
| earlz | 0:217a7931b41f | 794 | uint8_t tmp=rm.ReadByter(); |
| earlz | 0:217a7931b41f | 795 | bool store1,store2; |
| earlz | 0:217a7931b41f | 796 | |
| earlz | 0:217a7931b41f | 797 | tmp=Unsign8(tmp,store1); |
| earlz | 0:217a7931b41f | 798 | *regs16[AX]=Unsign16(*regs16[AX],store2); |
| earlz | 0:217a7931b41f | 799 | if(((*regs16[AX])/tmp)>0xFF){ |
| earlz | 0:217a7931b41f | 800 | Onx86LibError(); |
| earlz | 0:217a7931b41f | 801 | //throw CpuInt_excp(DIV0_IEXCP); |
| earlz | 0:217a7931b41f | 802 | } |
| earlz | 0:217a7931b41f | 803 | |
| earlz | 0:217a7931b41f | 804 | *regs8[AL]=(*regs16[AX])/tmp; |
| earlz | 0:217a7931b41f | 805 | *regs8[AH]=(*regs16[AX])%tmp; |
| earlz | 0:217a7931b41f | 806 | |
| earlz | 0:217a7931b41f | 807 | *regs8[AL]=Resign8(*regs8[AL],store1^store2); |
| earlz | 0:217a7931b41f | 808 | } |
| earlz | 0:217a7931b41f | 809 | |
| earlz | 0:217a7931b41f | 810 | void x86CPU::op16_idiv_rm16(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 811 | if(rm.ReadWordr()==0){ |
| earlz | 0:217a7931b41f | 812 | Onx86LibError(); |
| earlz | 0:217a7931b41f | 813 | //throw CpuInt_excp(DIV0_IEXCP); |
| earlz | 0:217a7931b41f | 814 | } |
| earlz | 0:217a7931b41f | 815 | uint16_t tmp=rm.ReadWordr(); |
| earlz | 0:217a7931b41f | 816 | bool store1,store2; |
| earlz | 0:217a7931b41f | 817 | tmp=Unsign16(tmp,store1); |
| earlz | 0:217a7931b41f | 818 | static uint32_t tmp2=Unsign32(((*regs16[DX])<<16)|(*regs16[AX]),store2); |
| earlz | 0:217a7931b41f | 819 | |
| earlz | 0:217a7931b41f | 820 | if((tmp2/tmp)>0xFFFF){ |
| earlz | 0:217a7931b41f | 821 | Onx86LibError(); |
| earlz | 0:217a7931b41f | 822 | //throw CpuInt_excp(DIV0_IEXCP); |
| earlz | 0:217a7931b41f | 823 | } |
| earlz | 0:217a7931b41f | 824 | *regs16[AX]=tmp2/tmp; |
| earlz | 0:217a7931b41f | 825 | *regs16[DX]=tmp2%tmp; |
| earlz | 0:217a7931b41f | 826 | |
| earlz | 0:217a7931b41f | 827 | *regs16[AX]=Resign16(*regs16[AX],store1^store2); |
| earlz | 0:217a7931b41f | 828 | } |
| earlz | 0:217a7931b41f | 829 | |
| earlz | 0:217a7931b41f | 830 | |
| earlz | 0:217a7931b41f | 831 | |
| earlz | 0:217a7931b41f | 832 | void x86CPU::op16_mul_rm8(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 833 | *regs16[AX]=(*regs8[AL])*rm.ReadByter(); |
| earlz | 0:217a7931b41f | 834 | if((*regs8[AH])>0){ //if tophalf of result has anything in it |
| earlz | 0:217a7931b41f | 835 | freg.cf=1; |
| earlz | 0:217a7931b41f | 836 | freg.of=1; |
| earlz | 0:217a7931b41f | 837 | }else{ |
| earlz | 0:217a7931b41f | 838 | freg.cf=0; |
| earlz | 0:217a7931b41f | 839 | freg.of=0; |
| earlz | 0:217a7931b41f | 840 | } |
| earlz | 0:217a7931b41f | 841 | } |
| earlz | 0:217a7931b41f | 842 | |
| earlz | 0:217a7931b41f | 843 | |
| earlz | 0:217a7931b41f | 844 | void x86CPU::op16_mul_rm16(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 845 | uint32_t result; |
| earlz | 0:217a7931b41f | 846 | result=(*regs16[AX])*rm.ReadWordr(); |
| earlz | 0:217a7931b41f | 847 | *regs16[AX]=result&0x0000FFFF; |
| earlz | 0:217a7931b41f | 848 | *regs16[DX]=(result&0xFFFF0000)>>16; |
| earlz | 0:217a7931b41f | 849 | if((*regs16[DX])>0){ //if tophalf of result has anything in it |
| earlz | 0:217a7931b41f | 850 | freg.cf=1; |
| earlz | 0:217a7931b41f | 851 | freg.of=1; |
| earlz | 0:217a7931b41f | 852 | }else{ |
| earlz | 0:217a7931b41f | 853 | freg.cf=0; |
| earlz | 0:217a7931b41f | 854 | freg.of=0; |
| earlz | 0:217a7931b41f | 855 | } |
| earlz | 0:217a7931b41f | 856 | } |
| earlz | 0:217a7931b41f | 857 | |
| earlz | 0:217a7931b41f | 858 | void x86CPU::op16_imul_rm8(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 859 | bool store1,store2; |
| earlz | 0:217a7931b41f | 860 | *regs16[AX]=Unsign8(*regs8[AL],store1)*Unsign8(rm.ReadByter(),store2); |
| earlz | 0:217a7931b41f | 861 | if(*regs8[AX]>0){ |
| earlz | 0:217a7931b41f | 862 | freg.of=1; |
| earlz | 0:217a7931b41f | 863 | freg.cf=1; |
| earlz | 0:217a7931b41f | 864 | }else{ |
| earlz | 0:217a7931b41f | 865 | freg.of=0; |
| earlz | 0:217a7931b41f | 866 | freg.cf=0; |
| earlz | 0:217a7931b41f | 867 | } |
| earlz | 0:217a7931b41f | 868 | *regs16[AX]=Resign16(*regs16[AX],store1^store2); |
| earlz | 0:217a7931b41f | 869 | } |
| earlz | 0:217a7931b41f | 870 | |
| earlz | 0:217a7931b41f | 871 | void x86CPU::op16_imul_rm16(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 872 | bool store1,store2; |
| earlz | 0:217a7931b41f | 873 | uint32_t result=Unsign16(*regs16[AX],store1)*Unsign16(rm.ReadWordr(),store2); |
| earlz | 0:217a7931b41f | 874 | if((result&0xFFFF0000)>0){ |
| earlz | 0:217a7931b41f | 875 | freg.of=1; |
| earlz | 0:217a7931b41f | 876 | freg.cf=1; |
| earlz | 0:217a7931b41f | 877 | }else{ |
| earlz | 0:217a7931b41f | 878 | freg.of=0; |
| earlz | 0:217a7931b41f | 879 | freg.cf=0; |
| earlz | 0:217a7931b41f | 880 | } |
| earlz | 0:217a7931b41f | 881 | result=Resign32(result,store1^store2); |
| earlz | 0:217a7931b41f | 882 | *regs16[DX]=(result&0xFFFF0000)>>16; |
| earlz | 0:217a7931b41f | 883 | *regs16[AX]=(result&0xFFFF); |
| earlz | 0:217a7931b41f | 884 | } |
| earlz | 0:217a7931b41f | 885 | |
| earlz | 0:217a7931b41f | 886 | |
| earlz | 0:217a7931b41f | 887 | |
| earlz | 0:217a7931b41f | 888 | void x86CPU::op16_and_rm8_r8(){ |
| earlz | 0:217a7931b41f | 889 | eip++; |
| earlz | 0:217a7931b41f | 890 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 891 | rm.WriteByter(And8(rm.ReadByter(),*regs8[rm.GetExtra()])); |
| earlz | 0:217a7931b41f | 892 | } |
| earlz | 0:217a7931b41f | 893 | |
| earlz | 0:217a7931b41f | 894 | void x86CPU::op16_and_rm16_r16(){ |
| earlz | 0:217a7931b41f | 895 | eip++; |
| earlz | 0:217a7931b41f | 896 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 897 | rm.WriteWordr(And16(rm.ReadWordr(),*regs16[rm.GetExtra()])); |
| earlz | 0:217a7931b41f | 898 | } |
| earlz | 0:217a7931b41f | 899 | |
| earlz | 0:217a7931b41f | 900 | void x86CPU::op16_and_r8_rm8(){ |
| earlz | 0:217a7931b41f | 901 | eip++; |
| earlz | 0:217a7931b41f | 902 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 903 | *regs8[rm.GetExtra()]=And8(*regs8[rm.GetExtra()],rm.ReadByter()); |
| earlz | 0:217a7931b41f | 904 | } |
| earlz | 0:217a7931b41f | 905 | |
| earlz | 0:217a7931b41f | 906 | void x86CPU::op16_and_r16_rm16(){ |
| earlz | 0:217a7931b41f | 907 | eip++; |
| earlz | 0:217a7931b41f | 908 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 909 | *regs16[rm.GetExtra()]=And16(*regs16[rm.GetExtra()],rm.ReadWordr()); |
| earlz | 0:217a7931b41f | 910 | } |
| earlz | 0:217a7931b41f | 911 | |
| earlz | 0:217a7931b41f | 912 | void x86CPU::op16_and_al_imm8(){ |
| earlz | 0:217a7931b41f | 913 | eip++; |
| earlz | 0:217a7931b41f | 914 | *regs8[AL]=And8(*regs8[AL],op_cache[1]); |
| earlz | 0:217a7931b41f | 915 | } |
| earlz | 0:217a7931b41f | 916 | |
| earlz | 0:217a7931b41f | 917 | void x86CPU::op16_and_ax_imm16(){ |
| earlz | 0:217a7931b41f | 918 | eip++; |
| earlz | 0:217a7931b41f | 919 | eip++; |
| earlz | 0:217a7931b41f | 920 | *regs16[AX]=And16(*regs16[AX],*(uint16_t*)&op_cache[1]); |
| earlz | 0:217a7931b41f | 921 | } |
| earlz | 0:217a7931b41f | 922 | |
| earlz | 0:217a7931b41f | 923 | void x86CPU::op16_and_rm8_imm8(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 924 | rm.WriteByter(And8(rm.ReadByter(),ReadByte(cCS,eip+rm.GetLength()))); |
| earlz | 0:217a7931b41f | 925 | } |
| earlz | 0:217a7931b41f | 926 | |
| earlz | 0:217a7931b41f | 927 | void x86CPU::op16_and_rm16_imm16(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 928 | rm.WriteWordr(And16(rm.ReadWordr(),ReadWord(cCS,eip+rm.GetLength()))); |
| earlz | 0:217a7931b41f | 929 | } |
| earlz | 0:217a7931b41f | 930 | |
| earlz | 0:217a7931b41f | 931 | void x86CPU::op16_and_rm16_imm8(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 932 | rm.WriteWordr(And16(rm.ReadWordr(),SignExtend8(ReadByte(cCS,eip+rm.GetLength())))); |
| earlz | 0:217a7931b41f | 933 | //gotta love parentheses... |
| earlz | 0:217a7931b41f | 934 | } |
| earlz | 0:217a7931b41f | 935 | |
| earlz | 0:217a7931b41f | 936 | void x86CPU::op16_or_rm8_r8(){ |
| earlz | 0:217a7931b41f | 937 | eip++; |
| earlz | 0:217a7931b41f | 938 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 939 | rm.WriteByter(Or8(rm.ReadByter(),*regs8[rm.GetExtra()])); |
| earlz | 0:217a7931b41f | 940 | } |
| earlz | 0:217a7931b41f | 941 | |
| earlz | 0:217a7931b41f | 942 | void x86CPU::op16_or_rm16_r16(){ |
| earlz | 0:217a7931b41f | 943 | eip++; |
| earlz | 0:217a7931b41f | 944 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 945 | rm.WriteWordr(Or16(rm.ReadWordr(),*regs16[rm.GetExtra()])); |
| earlz | 0:217a7931b41f | 946 | } |
| earlz | 0:217a7931b41f | 947 | |
| earlz | 0:217a7931b41f | 948 | void x86CPU::op16_or_r8_rm8(){ |
| earlz | 0:217a7931b41f | 949 | eip++; |
| earlz | 0:217a7931b41f | 950 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 951 | *regs8[rm.GetExtra()]=Or8(*regs8[rm.GetExtra()],rm.ReadByter()); |
| earlz | 0:217a7931b41f | 952 | } |
| earlz | 0:217a7931b41f | 953 | |
| earlz | 0:217a7931b41f | 954 | void x86CPU::op16_or_r16_rm16(){ |
| earlz | 0:217a7931b41f | 955 | eip++; |
| earlz | 0:217a7931b41f | 956 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 957 | *regs16[rm.GetExtra()]=Or16(*regs16[rm.GetExtra()],rm.ReadWordr()); |
| earlz | 0:217a7931b41f | 958 | } |
| earlz | 0:217a7931b41f | 959 | |
| earlz | 0:217a7931b41f | 960 | void x86CPU::op16_or_al_imm8(){ |
| earlz | 0:217a7931b41f | 961 | eip++; |
| earlz | 0:217a7931b41f | 962 | *regs8[AL]=Or8(*regs8[AL],op_cache[1]); |
| earlz | 0:217a7931b41f | 963 | } |
| earlz | 0:217a7931b41f | 964 | |
| earlz | 0:217a7931b41f | 965 | void x86CPU::op16_or_ax_imm16(){ |
| earlz | 0:217a7931b41f | 966 | eip++; |
| earlz | 0:217a7931b41f | 967 | eip++; |
| earlz | 0:217a7931b41f | 968 | *regs16[AX]=Or16(*regs16[AX],*(uint16_t*)&op_cache[1]); |
| earlz | 0:217a7931b41f | 969 | } |
| earlz | 0:217a7931b41f | 970 | |
| earlz | 0:217a7931b41f | 971 | void x86CPU::op16_or_rm8_imm8(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 972 | rm.WriteByter(Or8(rm.ReadByter(),ReadByte(cCS,eip+rm.GetLength()))); |
| earlz | 0:217a7931b41f | 973 | } |
| earlz | 0:217a7931b41f | 974 | |
| earlz | 0:217a7931b41f | 975 | void x86CPU::op16_or_rm16_imm16(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 976 | rm.WriteWordr(Or16(rm.ReadWordr(),ReadWord(cCS,eip+rm.GetLength()))); |
| earlz | 0:217a7931b41f | 977 | } |
| earlz | 0:217a7931b41f | 978 | |
| earlz | 0:217a7931b41f | 979 | void x86CPU::op16_or_rm16_imm8(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 980 | rm.WriteWordr(Or16(rm.ReadWordr(),SignExtend8(ReadByte(cCS,eip+rm.GetLength())))); |
| earlz | 0:217a7931b41f | 981 | //gotta love parentheses... |
| earlz | 0:217a7931b41f | 982 | } |
| earlz | 0:217a7931b41f | 983 | |
| earlz | 0:217a7931b41f | 984 | |
| earlz | 0:217a7931b41f | 985 | |
| earlz | 0:217a7931b41f | 986 | void x86CPU::op16_xor_rm8_r8(){ |
| earlz | 0:217a7931b41f | 987 | eip++; |
| earlz | 0:217a7931b41f | 988 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 989 | rm.WriteByter(Xor8(rm.ReadByter(),*regs8[rm.GetExtra()])); |
| earlz | 0:217a7931b41f | 990 | } |
| earlz | 0:217a7931b41f | 991 | |
| earlz | 0:217a7931b41f | 992 | void x86CPU::op16_xor_rm16_r16(){ |
| earlz | 0:217a7931b41f | 993 | eip++; |
| earlz | 0:217a7931b41f | 994 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 995 | rm.WriteWordr(Xor16(rm.ReadWordr(),*regs16[rm.GetExtra()])); |
| earlz | 0:217a7931b41f | 996 | } |
| earlz | 0:217a7931b41f | 997 | |
| earlz | 0:217a7931b41f | 998 | void x86CPU::op16_xor_r8_rm8(){ |
| earlz | 0:217a7931b41f | 999 | eip++; |
| earlz | 0:217a7931b41f | 1000 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 1001 | *regs8[rm.GetExtra()]=Xor8(*regs8[rm.GetExtra()],rm.ReadByter()); |
| earlz | 0:217a7931b41f | 1002 | } |
| earlz | 0:217a7931b41f | 1003 | |
| earlz | 0:217a7931b41f | 1004 | void x86CPU::op16_xor_r16_rm16(){ |
| earlz | 0:217a7931b41f | 1005 | eip++; |
| earlz | 0:217a7931b41f | 1006 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 1007 | *regs16[rm.GetExtra()]=Xor16(*regs16[rm.GetExtra()],rm.ReadWordr()); |
| earlz | 0:217a7931b41f | 1008 | } |
| earlz | 0:217a7931b41f | 1009 | |
| earlz | 0:217a7931b41f | 1010 | void x86CPU::op16_xor_al_imm8(){ |
| earlz | 0:217a7931b41f | 1011 | eip++; |
| earlz | 0:217a7931b41f | 1012 | *regs8[AL]=Xor8(*regs8[AL],op_cache[1]); |
| earlz | 0:217a7931b41f | 1013 | } |
| earlz | 0:217a7931b41f | 1014 | |
| earlz | 0:217a7931b41f | 1015 | void x86CPU::op16_xor_ax_imm16(){ |
| earlz | 0:217a7931b41f | 1016 | eip++; |
| earlz | 0:217a7931b41f | 1017 | eip++; |
| earlz | 0:217a7931b41f | 1018 | *regs16[AX]=Xor16(*regs16[AX],*(uint16_t*)&op_cache[1]); |
| earlz | 0:217a7931b41f | 1019 | } |
| earlz | 0:217a7931b41f | 1020 | |
| earlz | 0:217a7931b41f | 1021 | void x86CPU::op16_xor_rm8_imm8(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 1022 | rm.WriteByter(Xor8(rm.ReadByter(),ReadByte(cCS,eip+rm.GetLength()))); |
| earlz | 0:217a7931b41f | 1023 | } |
| earlz | 0:217a7931b41f | 1024 | |
| earlz | 0:217a7931b41f | 1025 | void x86CPU::op16_xor_rm16_imm16(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 1026 | rm.WriteWordr(Xor16(rm.ReadWordr(),ReadWord(cCS,eip+rm.GetLength()))); |
| earlz | 0:217a7931b41f | 1027 | } |
| earlz | 0:217a7931b41f | 1028 | |
| earlz | 0:217a7931b41f | 1029 | void x86CPU::op16_xor_rm16_imm8(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 1030 | rm.WriteWordr(Xor16(rm.ReadWordr(),SignExtend8(ReadByte(cCS,eip+rm.GetLength())))); |
| earlz | 0:217a7931b41f | 1031 | //gotta love parentheses... |
| earlz | 0:217a7931b41f | 1032 | } |
| earlz | 0:217a7931b41f | 1033 | |
| earlz | 0:217a7931b41f | 1034 | void x86CPU::op16_test_rm8_r8(){ |
| earlz | 0:217a7931b41f | 1035 | eip++; |
| earlz | 0:217a7931b41f | 1036 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 1037 | And8(rm.ReadByter(),*regs8[rm.GetExtra()]); |
| earlz | 0:217a7931b41f | 1038 | } |
| earlz | 0:217a7931b41f | 1039 | |
| earlz | 0:217a7931b41f | 1040 | void x86CPU::op16_test_rm16_r16(){ |
| earlz | 0:217a7931b41f | 1041 | eip++; |
| earlz | 0:217a7931b41f | 1042 | ModRM16 rm(this); |
| earlz | 0:217a7931b41f | 1043 | And16(rm.ReadWordr(),*regs16[rm.GetExtra()]); |
| earlz | 0:217a7931b41f | 1044 | } |
| earlz | 0:217a7931b41f | 1045 | void x86CPU::op16_test_al_imm8(){ |
| earlz | 0:217a7931b41f | 1046 | eip++; |
| earlz | 0:217a7931b41f | 1047 | And8(*regs8[AL],op_cache[1]); |
| earlz | 0:217a7931b41f | 1048 | } |
| earlz | 0:217a7931b41f | 1049 | void x86CPU::op16_test_ax_imm16(){ |
| earlz | 0:217a7931b41f | 1050 | eip++; |
| earlz | 0:217a7931b41f | 1051 | eip++; |
| earlz | 0:217a7931b41f | 1052 | And16(*regs16[AX],*(uint16_t*)&op_cache[1]); |
| earlz | 0:217a7931b41f | 1053 | } |
| earlz | 0:217a7931b41f | 1054 | |
| earlz | 0:217a7931b41f | 1055 | void x86CPU::op16_test_rm8_imm8(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 1056 | And8(rm.ReadByter(),ReadByte(cCS,eip+rm.GetLength())); |
| earlz | 0:217a7931b41f | 1057 | } |
| earlz | 0:217a7931b41f | 1058 | |
| earlz | 0:217a7931b41f | 1059 | void x86CPU::op16_test_rm16_imm16(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 1060 | And16(rm.ReadWordr(),ReadWord(cCS,eip+rm.GetLength())); |
| earlz | 0:217a7931b41f | 1061 | } |
| earlz | 0:217a7931b41f | 1062 | |
| earlz | 0:217a7931b41f | 1063 | void x86CPU::op16_test_rm16_imm8(ModRM16& rm){ |
| earlz | 0:217a7931b41f | 1064 | And16(rm.ReadWordr(),SignExtend8(ReadByte(cCS,eip+rm.GetLength()))); |
| earlz | 0:217a7931b41f | 1065 | //gotta love parentheses... |
| earlz | 0:217a7931b41f | 1066 | } |
| earlz | 0:217a7931b41f | 1067 | |
| earlz | 0:217a7931b41f | 1068 | |
| earlz | 0:217a7931b41f | 1069 | void x86CPU::op16_shr_rm8_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1070 | rm.WriteByter(ShiftLogicalRight8(rm.ReadByter(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1071 | } |
| earlz | 0:217a7931b41f | 1072 | void x86CPU::op16_shr_rm16_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1073 | rm.WriteWordr(ShiftLogicalRight16(rm.ReadWordr(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1074 | } |
| earlz | 0:217a7931b41f | 1075 | |
| earlz | 0:217a7931b41f | 1076 | void x86CPU::op16_shl_rm8_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1077 | rm.WriteByter(ShiftLogicalLeft8(rm.ReadByter(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1078 | } |
| earlz | 0:217a7931b41f | 1079 | void x86CPU::op16_shl_rm16_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1080 | rm.WriteWordr(ShiftLogicalLeft16(rm.ReadWordr(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1081 | } |
| earlz | 0:217a7931b41f | 1082 | |
| earlz | 0:217a7931b41f | 1083 | void x86CPU::op16_sar_rm8_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1084 | rm.WriteByter(ShiftArithmeticRight8(rm.ReadByter(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1085 | } |
| earlz | 0:217a7931b41f | 1086 | void x86CPU::op16_sar_rm16_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1087 | rm.WriteWordr(ShiftArithmeticRight16(rm.ReadWordr(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1088 | } |
| earlz | 0:217a7931b41f | 1089 | |
| earlz | 0:217a7931b41f | 1090 | void x86CPU::op16_rol_rm8_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1091 | rm.WriteByter(RotateLeft8(rm.ReadByter(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1092 | } |
| earlz | 0:217a7931b41f | 1093 | void x86CPU::op16_rol_rm16_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1094 | rm.WriteWordr(RotateLeft16(rm.ReadWordr(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1095 | } |
| earlz | 0:217a7931b41f | 1096 | |
| earlz | 0:217a7931b41f | 1097 | void x86CPU::op16_ror_rm8_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1098 | rm.WriteByter(RotateRight8(rm.ReadByter(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1099 | } |
| earlz | 0:217a7931b41f | 1100 | void x86CPU::op16_ror_rm16_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1101 | rm.WriteWordr(RotateRight16(rm.ReadWordr(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1102 | } |
| earlz | 0:217a7931b41f | 1103 | |
| earlz | 0:217a7931b41f | 1104 | |
| earlz | 0:217a7931b41f | 1105 | void x86CPU::op16_rcl_rm8_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1106 | rm.WriteByter(RotateCarryLeft8(rm.ReadByter(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1107 | } |
| earlz | 0:217a7931b41f | 1108 | void x86CPU::op16_rcl_rm16_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1109 | rm.WriteWordr(RotateCarryLeft16(rm.ReadWordr(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1110 | } |
| earlz | 0:217a7931b41f | 1111 | |
| earlz | 0:217a7931b41f | 1112 | void x86CPU::op16_rcr_rm8_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1113 | rm.WriteByter(RotateCarryRight8(rm.ReadByter(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1114 | } |
| earlz | 0:217a7931b41f | 1115 | void x86CPU::op16_rcr_rm16_cl(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1116 | rm.WriteWordr(RotateCarryRight16(rm.ReadWordr(),*regs8[CL])); |
| earlz | 0:217a7931b41f | 1117 | } |
| earlz | 0:217a7931b41f | 1118 | |
| earlz | 0:217a7931b41f | 1119 | |
| earlz | 0:217a7931b41f | 1120 | /****/ |
| earlz | 0:217a7931b41f | 1121 | void x86CPU::op16_shr_rm8_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1122 | rm.WriteByter(ShiftLogicalRight8(rm.ReadByter(),1)); |
| earlz | 0:217a7931b41f | 1123 | } |
| earlz | 0:217a7931b41f | 1124 | void x86CPU::op16_shr_rm16_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1125 | rm.WriteWordr(ShiftLogicalRight16(rm.ReadWordr(),1)); |
| earlz | 0:217a7931b41f | 1126 | } |
| earlz | 0:217a7931b41f | 1127 | |
| earlz | 0:217a7931b41f | 1128 | void x86CPU::op16_shl_rm8_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1129 | rm.WriteByter(ShiftLogicalLeft8(rm.ReadByter(),1)); |
| earlz | 0:217a7931b41f | 1130 | } |
| earlz | 0:217a7931b41f | 1131 | void x86CPU::op16_shl_rm16_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1132 | rm.WriteWordr(ShiftLogicalLeft16(rm.ReadWordr(),1)); |
| earlz | 0:217a7931b41f | 1133 | } |
| earlz | 0:217a7931b41f | 1134 | |
| earlz | 0:217a7931b41f | 1135 | void x86CPU::op16_sar_rm8_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1136 | rm.WriteByter(ShiftArithmeticRight8(rm.ReadByter(),1)); |
| earlz | 0:217a7931b41f | 1137 | } |
| earlz | 0:217a7931b41f | 1138 | void x86CPU::op16_sar_rm16_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1139 | rm.WriteWordr(ShiftArithmeticRight16(rm.ReadWordr(),1)); |
| earlz | 0:217a7931b41f | 1140 | } |
| earlz | 0:217a7931b41f | 1141 | |
| earlz | 0:217a7931b41f | 1142 | void x86CPU::op16_rol_rm8_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1143 | rm.WriteByter(RotateLeft8(rm.ReadByter(),1)); |
| earlz | 0:217a7931b41f | 1144 | } |
| earlz | 0:217a7931b41f | 1145 | void x86CPU::op16_rol_rm16_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1146 | rm.WriteWordr(RotateLeft16(rm.ReadWordr(),1)); |
| earlz | 0:217a7931b41f | 1147 | } |
| earlz | 0:217a7931b41f | 1148 | |
| earlz | 0:217a7931b41f | 1149 | void x86CPU::op16_ror_rm8_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1150 | rm.WriteByter(RotateRight8(rm.ReadByter(),1)); |
| earlz | 0:217a7931b41f | 1151 | } |
| earlz | 0:217a7931b41f | 1152 | void x86CPU::op16_ror_rm16_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1153 | rm.WriteWordr(RotateRight16(rm.ReadWordr(),1)); |
| earlz | 0:217a7931b41f | 1154 | } |
| earlz | 0:217a7931b41f | 1155 | |
| earlz | 0:217a7931b41f | 1156 | |
| earlz | 0:217a7931b41f | 1157 | void x86CPU::op16_rcl_rm8_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1158 | rm.WriteByter(RotateCarryLeft8(rm.ReadByter(),1)); |
| earlz | 0:217a7931b41f | 1159 | } |
| earlz | 0:217a7931b41f | 1160 | void x86CPU::op16_rcl_rm16_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1161 | rm.WriteWordr(RotateCarryLeft16(rm.ReadWordr(),1)); |
| earlz | 0:217a7931b41f | 1162 | } |
| earlz | 0:217a7931b41f | 1163 | |
| earlz | 0:217a7931b41f | 1164 | void x86CPU::op16_rcr_rm8_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1165 | rm.WriteByter(RotateCarryRight8(rm.ReadByter(),1)); |
| earlz | 0:217a7931b41f | 1166 | } |
| earlz | 0:217a7931b41f | 1167 | void x86CPU::op16_rcr_rm16_1(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1168 | rm.WriteWordr(RotateCarryRight16(rm.ReadWordr(),1)); |
| earlz | 0:217a7931b41f | 1169 | } |
| earlz | 0:217a7931b41f | 1170 | |
| earlz | 0:217a7931b41f | 1171 | void x86CPU::op16_not_rm8(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1172 | rm.WriteByter(~(rm.ReadByter())); |
| earlz | 0:217a7931b41f | 1173 | } |
| earlz | 0:217a7931b41f | 1174 | |
| earlz | 0:217a7931b41f | 1175 | void x86CPU::op16_not_rm16(ModRM16 &rm){ |
| earlz | 0:217a7931b41f | 1176 | rm.WriteWordr(~(rm.ReadWordr())); |
| earlz | 0:217a7931b41f | 1177 | } |
| earlz | 0:217a7931b41f | 1178 | |
| earlz | 0:217a7931b41f | 1179 | |
| earlz | 0:217a7931b41f | 1180 | |
| earlz | 0:217a7931b41f | 1181 | |
| earlz | 0:217a7931b41f | 1182 | /** |
| earlz | 0:217a7931b41f | 1183 | BCD Opcodes for Open86 |
| earlz | 0:217a7931b41f | 1184 | By: Alboin, 3-16-07 |
| earlz | 0:217a7931b41f | 1185 | Modified to work with x86Lib by Jordan(hckr83) |
| earlz | 0:217a7931b41f | 1186 | **/ |
| earlz | 0:217a7931b41f | 1187 | |
| earlz | 0:217a7931b41f | 1188 | |
| earlz | 0:217a7931b41f | 1189 | /* Opcode: 0x37 */ |
| earlz | 0:217a7931b41f | 1190 | void x86CPU::op16_aaa() { |
| earlz | 0:217a7931b41f | 1191 | if((*regs8[AL] & 0x0f) > 9 || freg.af == 1) { |
| earlz | 0:217a7931b41f | 1192 | *regs8[AL] += 6; |
| earlz | 0:217a7931b41f | 1193 | *regs8[AH]++; |
| earlz | 0:217a7931b41f | 1194 | freg.af = 1; |
| earlz | 0:217a7931b41f | 1195 | freg.cf = 1; |
| earlz | 0:217a7931b41f | 1196 | } |
| earlz | 0:217a7931b41f | 1197 | else { |
| earlz | 0:217a7931b41f | 1198 | freg.af = 0; |
| earlz | 0:217a7931b41f | 1199 | freg.cf = 0; |
| earlz | 0:217a7931b41f | 1200 | } |
| earlz | 0:217a7931b41f | 1201 | *regs8[AL] = *regs8[AL] & 0x0f; |
| earlz | 0:217a7931b41f | 1202 | } |
| earlz | 0:217a7931b41f | 1203 | |
| earlz | 0:217a7931b41f | 1204 | |
| earlz | 0:217a7931b41f | 1205 | /* Opcode: 0x27 */ |
| earlz | 0:217a7931b41f | 1206 | void x86CPU::op16_daa() { |
| earlz | 0:217a7931b41f | 1207 | if((*regs8[AL] & 0x0f) > 9 || freg.af == 1) { |
| earlz | 0:217a7931b41f | 1208 | *regs8[AL] += 6; |
| earlz | 0:217a7931b41f | 1209 | *regs8[AH]++; |
| earlz | 0:217a7931b41f | 1210 | } |
| earlz | 0:217a7931b41f | 1211 | else |
| earlz | 0:217a7931b41f | 1212 | freg.af = 0; |
| earlz | 0:217a7931b41f | 1213 | |
| earlz | 0:217a7931b41f | 1214 | if(*regs8[AL] > 0x9f || freg.cf == 1) { |
| earlz | 0:217a7931b41f | 1215 | *regs8[AL] = *regs8[AL] + 0x60; |
| earlz | 0:217a7931b41f | 1216 | freg.cf = 1; |
| earlz | 0:217a7931b41f | 1217 | } |
| earlz | 0:217a7931b41f | 1218 | else |
| earlz | 0:217a7931b41f | 1219 | freg.cf = 0; |
| earlz | 0:217a7931b41f | 1220 | } |
| earlz | 0:217a7931b41f | 1221 | |
| earlz | 0:217a7931b41f | 1222 | /* Opcode: 0x2F */ |
| earlz | 0:217a7931b41f | 1223 | void x86CPU::op16_das() { |
| earlz | 0:217a7931b41f | 1224 | if((*regs8[AL] & 0x0f) > 9 || freg.af == 1) { |
| earlz | 0:217a7931b41f | 1225 | *regs8[AL] -= 6; |
| earlz | 0:217a7931b41f | 1226 | freg.af = 1; |
| earlz | 0:217a7931b41f | 1227 | } |
| earlz | 0:217a7931b41f | 1228 | else |
| earlz | 0:217a7931b41f | 1229 | freg.af = 0; |
| earlz | 0:217a7931b41f | 1230 | |
| earlz | 0:217a7931b41f | 1231 | if(*regs8[AL] > 0x9f || freg.cf == 1) { |
| earlz | 0:217a7931b41f | 1232 | *regs8[AL] -= 0x60; |
| earlz | 0:217a7931b41f | 1233 | freg.cf = 1; |
| earlz | 0:217a7931b41f | 1234 | } |
| earlz | 0:217a7931b41f | 1235 | else |
| earlz | 0:217a7931b41f | 1236 | freg.cf = 0; |
| earlz | 0:217a7931b41f | 1237 | } |
| earlz | 0:217a7931b41f | 1238 | |
| earlz | 0:217a7931b41f | 1239 | /* Opcode: 0x3F */ |
| earlz | 0:217a7931b41f | 1240 | void x86CPU::op16_aas() { |
| earlz | 0:217a7931b41f | 1241 | if((*regs8[AL] & 0x0f) > 9 || freg.af == 1) { |
| earlz | 0:217a7931b41f | 1242 | *regs8[AL] -= 6; |
| earlz | 0:217a7931b41f | 1243 | *regs8[AH]--; |
| earlz | 0:217a7931b41f | 1244 | freg.af = 1; |
| earlz | 0:217a7931b41f | 1245 | freg.cf = 1; |
| earlz | 0:217a7931b41f | 1246 | } |
| earlz | 0:217a7931b41f | 1247 | else { |
| earlz | 0:217a7931b41f | 1248 | freg.af = 0; |
| earlz | 0:217a7931b41f | 1249 | freg.cf = 0; |
| earlz | 0:217a7931b41f | 1250 | } |
| earlz | 0:217a7931b41f | 1251 | *regs8[AL] = *regs8[AL] & 0x0f; |
| earlz | 0:217a7931b41f | 1252 | } |
| earlz | 0:217a7931b41f | 1253 | |
| earlz | 0:217a7931b41f | 1254 | |
| earlz | 0:217a7931b41f | 1255 | |
| earlz | 0:217a7931b41f | 1256 | void x86CPU::op16_aad(){ |
| earlz | 0:217a7931b41f | 1257 | //AAD is a weird opcode because it is two bytes |
| earlz | 0:217a7931b41f | 1258 | //for "apparently" no reason. But really, it is just |
| earlz | 0:217a7931b41f | 1259 | //undocumented... the 0x0A in the second byte is for |
| earlz | 0:217a7931b41f | 1260 | //multiplecation...but it can be changed... |
| earlz | 0:217a7931b41f | 1261 | *regs8[AL]=(*regs8[AH])*(op_cache[1])+*regs8[AL]; |
| earlz | 0:217a7931b41f | 1262 | *regs8[AH]=0; |
| earlz | 0:217a7931b41f | 1263 | } |
| earlz | 0:217a7931b41f | 1264 | |
| earlz | 0:217a7931b41f | 1265 | void x86CPU::op16_aam(){ |
| earlz | 0:217a7931b41f | 1266 | //same wiht the 0x0A operand as above.. |
| earlz | 0:217a7931b41f | 1267 | if(op_cache[1]==0){ |
| earlz | 0:217a7931b41f | 1268 | Onx86LibError(); |
| earlz | 0:217a7931b41f | 1269 | //throw CpuInt_excp(DIV0_IEXCP); |
| earlz | 0:217a7931b41f | 1270 | } |
| earlz | 0:217a7931b41f | 1271 | *regs8[AH]=(*regs8[AL])/op_cache[1]; |
| earlz | 0:217a7931b41f | 1272 | *regs8[AL]=(*regs8[AL])%op_cache[1]; |
| earlz | 0:217a7931b41f | 1273 | } |
| earlz | 0:217a7931b41f | 1274 | |
| earlz | 0:217a7931b41f | 1275 | |
| earlz | 0:217a7931b41f | 1276 | |
| earlz | 0:217a7931b41f | 1277 | |
| earlz | 0:217a7931b41f | 1278 | |
| earlz | 0:217a7931b41f | 1279 | |
| earlz | 0:217a7931b41f | 1280 | |
| earlz | 0:217a7931b41f | 1281 | |
| earlz | 0:217a7931b41f | 1282 | |
| earlz | 0:217a7931b41f | 1283 | |
| earlz | 0:217a7931b41f | 1284 | }; |
| earlz | 0:217a7931b41f | 1285 | |
| earlz | 0:217a7931b41f | 1286 | |
| earlz | 0:217a7931b41f | 1287 |