]>
Commit | Line | Data |
---|---|---|
1 | ; 8080 Interpreter. | |
2 | ; This is part of the Z80-CP/M emulator written by Sprite_tm. | |
3 | ; | |
4 | ||
5 | ; Copyright (C) 2010 Sprite_tm | |
6 | ; Copyright (C) 2010 Leo C. | |
7 | ; Copyright (C) 2010 Horst S. | |
8 | ||
9 | ; This file is part of avrcpm. | |
10 | ; | |
11 | ; avrcpm is free software: you can redistribute it and/or modify it | |
12 | ; under the terms of the GNU General Public License as published by | |
13 | ; the Free Software Foundation, either version 3 of the License, or | |
14 | ; (at your option) any later version. | |
15 | ; | |
16 | ; avrcpm is distributed in the hope that it will be useful, | |
17 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ; GNU General Public License for more details. | |
20 | ; | |
21 | ; You should have received a copy of the GNU General Public License | |
22 | ; along with avrcpm. If not, see <http://www.gnu.org/licenses/>. | |
23 | ; | |
24 | ; $Id$ | |
25 | ; | |
26 | ||
27 | .dseg | |
28 | z_regs: | |
29 | z_b: .byte 1 | |
30 | z_c: .byte 1 | |
31 | z_d: .byte 1 | |
32 | z_e: .byte 1 | |
33 | z_h: .byte 1 | |
34 | z_l: .byte 1 | |
35 | ||
36 | .equ oz_b = 0 | |
37 | .equ oz_c = 1 | |
38 | .equ oz_d = 2 | |
39 | .equ oz_e = 3 | |
40 | .equ oz_h = 4 | |
41 | .equ oz_l = 5 | |
42 | ||
43 | ||
44 | #if EM_Z80 | |
45 | z_b2: .byte 1 | |
46 | z_c2: .byte 1 | |
47 | z_d2: .byte 1 | |
48 | z_e2: .byte 1 | |
49 | z_h2: .byte 1 | |
50 | z_l2: .byte 1 | |
51 | z_f2: .byte 1 | |
52 | z_a2: .byte 1 | |
53 | .equ r2ofs = z_b2-z_b | |
54 | .equ oz_b2 = 6 | |
55 | .equ oz_c2 = 7 | |
56 | .equ oz_d2 = 8 | |
57 | .equ oz_e2 = 9 | |
58 | .equ oz_h2 = 10 | |
59 | .equ oz_l2 = 11 | |
60 | .equ oz_f2 = 12 | |
61 | .equ oz_a2 = 13 | |
62 | ||
63 | z_xh: .byte 1 | |
64 | z_xl: .byte 1 | |
65 | z_yh: .byte 1 | |
66 | z_yl: .byte 1 | |
67 | ||
68 | z_i: .byte 1 | |
69 | z_r: .byte 1 | |
70 | .equ oz_xh = 14 | |
71 | .equ oz_xl = 15 | |
72 | .equ oz_yh = 16 | |
73 | .equ oz_yl = 17 | |
74 | .equ oz_i = 18 | |
75 | .equ oz_r = 19 | |
76 | ||
77 | z_istat: .byte 1 | |
78 | .equ oz_istat = 20 | |
79 | ||
80 | .equ IM_MASK = 0x03 ;Mask IM 0..2 | |
81 | .equ IM0 = 0 | |
82 | .equ IM1 = 1 | |
83 | .equ IM2 = 2 | |
84 | ||
85 | .equ IFF1 = 2 ;IFF1 Flag | |
86 | .equ IFF2 = 3 ;IFF2 Flag | |
87 | ||
88 | #endif | |
89 | ||
90 | .cseg | |
91 | ||
92 | ;Init z80 | |
93 | z80_init: | |
94 | ldi z_pcl,low (IPLADDR) | |
95 | ldi z_pch,high(IPLADDR) | |
96 | ||
97 | cbi flags,trace | |
98 | printnewline | |
99 | printstring "Ok, CPU is live!" | |
100 | printnewline | |
101 | ||
102 | main: | |
103 | .if INS_DEBUG | |
104 | cbi flags,trace | |
105 | cpi z_pch,DBG_TRACE_BOTTOM | |
106 | brlo notraceon | |
107 | cpi z_pch,DBG_TRACE_TOP | |
108 | brsh notraceon | |
109 | sbi flags,trace | |
110 | notraceon: | |
111 | .endif | |
112 | ||
113 | .if PRINT_PC | |
114 | cpi z_pch,DBG_TRACE_BOTTOM | |
115 | brlo noprintpc | |
116 | cpi z_pch,DBG_TRACE_TOP | |
117 | brsh noprintpc | |
118 | ||
119 | printnewline | |
120 | printstring "PC=" | |
121 | movw temp,z_pcl | |
122 | lcall printhexw | |
123 | printstring " " | |
124 | noprintpc: | |
125 | .endif | |
126 | ||
127 | .if INS_DEBUG | |
128 | sbic flags,trace | |
129 | rcall printregs | |
130 | .endif | |
131 | ||
132 | ;hier kommt die Interruptbehandlung rein | |
133 | ||
134 | mem_read_ds zl,z_pc ;zl = memReadByte(z_pc) | |
135 | adiw z_pcl,1 ;++z_pc | |
136 | ldi zh,high(opcjmp) ; | |
137 | icall | |
138 | rjmp main ; | |
139 | ||
140 | ||
141 | .listmac | |
142 | ||
143 | ;-------------------------------------------------- | |
144 | ; Generate a table entry for one instruction | |
145 | ; | |
146 | ; instr fetch, op, store | |
147 | ; | |
148 | .macro instr | |
149 | .ifndef opcjmp_table_pos_ | |
150 | .set todo_table_pos_ = PC | |
151 | ; Place the opcode jump table on the next available location. | |
152 | .equ opcjmp = (PC+255) & 0xff00 | |
153 | .set opcjmp_table_pos_ = opcjmp | |
154 | .endif | |
155 | ||
156 | .if todo_table_pos_ < opcjmp + 256 + 128 | |
157 | .if todo_table_pos_ + 3 >= opcjmp | |
158 | .set todo_table_pos_ = opcjmp + 256 + 128 | |
159 | .endif | |
160 | .endif | |
161 | ||
162 | .set fetch_ = (@0 != do_fetch_nop) ; must call or jump to fetch phase | |
163 | .set op_ = (do_@1 != do_op_nop) ; must call or jump to op phase | |
164 | .set store_ = (@2 != do_store_nop) ; must jump to store phase | |
165 | .set cnt_ = fetch_ + op_ + store_ | |
166 | ||
167 | .set do_@0_@1_@2 = todo_table_pos_ ; make a label | |
168 | ||
169 | .org opcjmp_table_pos_ | |
170 | .set opcjmp_table_pos_ = opcjmp_table_pos_ + 1 | |
171 | ||
172 | .if cnt_ == 0 ; nothing to do (nop) | |
173 | ret ; go back to main | |
174 | .endif | |
175 | ||
176 | .if cnt_ == 1 ; jump direct to action | |
177 | .if fetch_ ; | |
178 | rjmp @0 ; | |
179 | .endif | |
180 | .if op_ | |
181 | rjmp do_@1 ; do op and return to main | |
182 | .endif | |
183 | .if store_ ; | |
184 | rjmp @2 ; | |
185 | .endif | |
186 | .endif | |
187 | ||
188 | ; two or tree actions | |
189 | .if cnt_ >= 2 ; jump direct to action | |
190 | rjmp do_@0_@1_@2 ; generate a jump to action table | |
191 | ||
192 | .org do_@0_@1_@2 | |
193 | ||
194 | .if fetch_ ; must fetch | |
195 | .if op_ || store_ | |
196 | rcall @0 ; fetch and come back here | |
197 | .else ; | |
198 | rjmp @0 ; fetch and return to main | |
199 | .endif | |
200 | .endif | |
201 | .if op_ ; must exec op | |
202 | .if store_ | |
203 | rcall do_@1 ; do op and come back here | |
204 | .else | |
205 | rjmp do_@1 ; do op and return to main | |
206 | .endif | |
207 | .endif | |
208 | .if store_ ; must store | |
209 | rjmp @2 ; store is allways last | |
210 | .endif | |
211 | ||
212 | .set todo_table_pos_ = PC | |
213 | ||
214 | .endif | |
215 | ||
216 | .endm | |
217 | ||
218 | ||
219 | ; ------------ Fetch phase stuff ----------------- | |
220 | ||
221 | ;.org (PC+255) & 0xff00 | |
222 | fetch_ops: | |
223 | do_fetch_nop: | |
224 | ret | |
225 | ||
226 | do_fetch_a: | |
227 | mov opl,z_a | |
228 | ret | |
229 | ||
230 | do_fetch_b: | |
231 | lds opl,z_b | |
232 | ret | |
233 | ||
234 | do_fetch_c: | |
235 | lds opl,z_c | |
236 | ret | |
237 | ||
238 | do_fetch_d: | |
239 | lds opl,z_d | |
240 | ret | |
241 | ||
242 | do_fetch_e: | |
243 | lds opl,z_e | |
244 | ret | |
245 | ||
246 | do_fetch_h: | |
247 | lds opl,z_h | |
248 | ret | |
249 | ||
250 | do_fetch_l: | |
251 | lds opl,z_l | |
252 | ret | |
253 | ||
254 | do_fetch_af: | |
255 | mov opl,z_flags | |
256 | mov oph,z_a | |
257 | ret | |
258 | ||
259 | do_fetch_bc: | |
260 | lds opl,z_c | |
261 | lds oph,z_b | |
262 | ret | |
263 | ||
264 | do_fetch_de: | |
265 | lds opl,z_e | |
266 | lds oph,z_d | |
267 | ret | |
268 | ||
269 | do_fetch_hl: | |
270 | lds opl,z_l | |
271 | lds oph,z_h | |
272 | ret | |
273 | ||
274 | do_fetch_sp: | |
275 | movw opl,z_spl | |
276 | ret | |
277 | ||
278 | do_fetch_mbc: | |
279 | lds xh,z_b | |
280 | lds xl,z_c | |
281 | mem_read_d z_a | |
282 | ret | |
283 | ||
284 | do_fetch_mde: | |
285 | lds xh,z_d | |
286 | lds xl,z_e | |
287 | mem_read_d z_a | |
288 | ret | |
289 | ||
290 | do_fetch_mhl: | |
291 | lds xh,z_h | |
292 | lds xl,z_l | |
293 | mem_read_d opl | |
294 | ret | |
295 | ||
296 | do_fetch_msp: | |
297 | movw x,z_spl | |
298 | mem_read_d opl | |
299 | adiw x,1 | |
300 | mem_read_d oph | |
301 | ret | |
302 | ||
303 | do_fetch_dir8: | |
304 | mem_read_ds opl, z_pc | |
305 | adiw z_pcl,1 | |
306 | ret | |
307 | ||
308 | do_fetch_dir16: | |
309 | mem_read_ds opl, z_pc | |
310 | adiw z_pcl,1 | |
311 | mem_read_ds oph, z_pc | |
312 | adiw z_pcl,1 | |
313 | ret | |
314 | ||
315 | do_fetch_rst: | |
316 | movw x,z_pcl | |
317 | sbiw x,1 | |
318 | mem_read_d opl | |
319 | andi opl,0x38 | |
320 | ldi oph,0 | |
321 | ret | |
322 | ||
323 | ; ------------ Store phase stuff ----------------- | |
324 | ||
325 | ;.org (PC+255) & 0xff00 | |
326 | store_ops: | |
327 | do_store_nop: | |
328 | ret | |
329 | ||
330 | do_store_a: | |
331 | mov z_a,opl | |
332 | ret | |
333 | ||
334 | do_store_b: | |
335 | sts z_b,opl | |
336 | ret | |
337 | ||
338 | do_store_c: | |
339 | sts z_c,opl | |
340 | ret | |
341 | ||
342 | do_store_d: | |
343 | sts z_d,opl | |
344 | ret | |
345 | ||
346 | do_store_e: | |
347 | sts z_e,opl | |
348 | ret | |
349 | ||
350 | do_store_h: | |
351 | sts z_h,opl | |
352 | ret | |
353 | ||
354 | do_store_l: | |
355 | sts z_l,opl | |
356 | ret | |
357 | ||
358 | do_store_af: | |
359 | mov z_a,oph | |
360 | mov z_flags,opl | |
361 | ret | |
362 | ||
363 | do_store_bc: | |
364 | sts z_b,oph | |
365 | sts z_c,opl | |
366 | ret | |
367 | ||
368 | do_store_de: | |
369 | sts z_d,oph | |
370 | sts z_e,opl | |
371 | ret | |
372 | ||
373 | do_store_hl: | |
374 | sts z_h,oph | |
375 | sts z_l,opl | |
376 | ret | |
377 | ||
378 | do_store_mbc: | |
379 | lds xh,z_b | |
380 | lds xl,z_c | |
381 | mem_write_s z_a | |
382 | ret | |
383 | ||
384 | do_store_mde: | |
385 | lds xh,z_d | |
386 | lds xl,z_e | |
387 | mem_write_s z_a | |
388 | ret | |
389 | ||
390 | do_store_mhl: | |
391 | lds xh,z_h | |
392 | lds xl,z_l | |
393 | mem_write_s opl | |
394 | ret | |
395 | ||
396 | do_store_msp: | |
397 | movw xl,z_spl | |
398 | mem_write_s opl | |
399 | adiw xl,1 | |
400 | mem_write_s oph | |
401 | ret | |
402 | ||
403 | do_store_sp: | |
404 | movw z_spl,opl | |
405 | ret | |
406 | ||
407 | do_store_pc: | |
408 | movw z_pcl,opl | |
409 | ret | |
410 | ||
411 | do_store_ret: | |
412 | movw x,z_spl | |
413 | mem_read_d z_pcl | |
414 | adiw x,1 | |
415 | mem_read_d z_pch | |
416 | adiw x,1 | |
417 | movw z_spl,x | |
418 | ||
419 | .if STACK_DBG | |
420 | printnewline | |
421 | printstring "Stack pop " | |
422 | movw temp,z_pcl | |
423 | rcall printhexw | |
424 | printstring ", SP is now " | |
425 | movw temp,z_spl | |
426 | rcall printhexw | |
427 | printstring ". " | |
428 | .endif | |
429 | ret | |
430 | ||
431 | do_store_call: | |
432 | movw xl,z_spl | |
433 | sbiw x,1 | |
434 | mem_write_s z_pch | |
435 | sbiw x,1 | |
436 | mem_write_s z_pcl | |
437 | movw z_spl,xl | |
438 | ||
439 | .if STACK_DBG | |
440 | printnewline | |
441 | printstring "Stack push " | |
442 | movw temp,z_pcl | |
443 | rcall printhexw | |
444 | printstring ", SP is now " | |
445 | movw temp,z_spl | |
446 | rcall printhexw | |
447 | printstring ". " | |
448 | .endif | |
449 | movw z_pcl,opl | |
450 | ret | |
451 | ||
452 | ||
453 | do_store_am: | |
454 | mem_write_ds op, z_a | |
455 | ret | |
456 | ||
457 | ||
458 | ||
459 | ; ------------ Operation phase stuff ----------------- | |
460 | ||
461 | ;---------------------------------------------------------------- | |
462 | ;| | | |
463 | ;| Zilog | | |
464 | ;| | | |
465 | ;| ZZZZZZZ 88888 000 | | |
466 | ;| Z 8 8 0 0 | | |
467 | ;| Z 8 8 0 0 0 | | |
468 | ;| Z 88888 0 0 0 | | |
469 | ;| Z 8 8 0 0 0 | | |
470 | ;| Z 8 8 0 0 | | |
471 | ;| ZZZZZZZ 88888 000 | | |
472 | ;| | | |
473 | ;| Z80 MICROPROCESSOR Instruction Set Summary | | |
474 | ;| | | |
475 | ;---------------------------------------------------------------- | |
476 | ;---------------------------------------------------------------- | |
477 | ;|Mnemonic |SZHPNC|Description |Notes | | |
478 | ;|----------+------+---------------------+----------------------| | |
479 | ;|ADC A,s |***V0*|Add with Carry |A=A+s+CY | | |
480 | ;|ADC HL,ss |**?V0*|Add with Carry |HL=HL+ss+CY | | |
481 | ;|ADD A,s |***V0*|Add |A=A+s | | |
482 | ;|ADD HL,ss |--*-0*|Add |HL=HL+ss | | |
483 | ;|ADD IX,pp |--*-0*|Add |IX=IX+pp | | |
484 | ;|ADD IY,rr |--*-0*|Add |IY=IY+rr | | |
485 | ;|AND s |**1P00|Logical AND |A=A&s | | |
486 | ;|BIT b,m |?*1?0-|Test Bit |m&{2^b} | | |
487 | ;|CALL cc,nn|------|Conditional Call |If cc CALL | | |
488 | ;|CALL nn |------|Unconditional Call |-[SP]=PC,PC=nn | | |
489 | ;|CCF |--?-0*|Complement Carry Flag|CY=~CY | | |
490 | ;|CP s |***V1*|Compare |A-s | | |
491 | ;|CPD |****1-|Compare and Decrement|A-[HL],HL=HL-1,BC=BC-1| | |
492 | ;|CPDR |****1-|Compare, Dec., Repeat|CPD till A=[HL]or BC=0| | |
493 | ;|CPI |****1-|Compare and Increment|A-[HL],HL=HL+1,BC=BC-1| | |
494 | ;|CPIR |****1-|Compare, Inc., Repeat|CPI till A=[HL]or BC=0| | |
495 | ;|CPL |--1-1-|Complement |A=~A | | |
496 | ;|DAA |***P-*|Decimal Adjust Acc. |A=BCD format | | |
497 | ;|DEC s |***V1-|Decrement |s=s-1 | | |
498 | ;|DEC xx |------|Decrement |xx=xx-1 | | |
499 | ;|DEC ss |------|Decrement |ss=ss-1 | | |
500 | ;|DI |------|Disable Interrupts |IFF1 = IFF2 = 0 | | |
501 | ;|DJNZ e |------|Dec., Jump Non-Zero |B=B-1 till B=0 | | |
502 | ;|EI |------|Enable Interrupts |IFF1 = IFF2 = 1 | | |
503 | ;|EX [SP],HL|------|Exchange |[SP]<->HL | | |
504 | ;|EX [SP],xx|------|Exchange |[SP]<->xx | | |
505 | ;|EX AF,AF' |------|Exchange |AF<->AF' | | |
506 | ;|EX DE,HL |------|Exchange |DE<->HL | | |
507 | ;|EXX |------|Exchange |qq<->qq' (except AF)| | |
508 | ;|HALT |------|Halt | | | |
509 | ;|IM n |------|Interrupt Mode | (n=0,1,2)| | |
510 | ;|IN A,[n] |------|Input |A=[n] | | |
511 | ;|IN r,[C] |***P0-|Input |r=[C] | | |
512 | ;|INC r |***V0-|Increment |r=r+1 | | |
513 | ;|INC [HL] |***V0-|Increment |[HL]=[HL]+1 | | |
514 | ;|INC xx |------|Increment |xx=xx+1 | | |
515 | ;|INC [xx+d]|***V0-|Increment |[xx+d]=[xx+d]+1 | | |
516 | ;|INC ss |------|Increment |ss=ss+1 | | |
517 | ;|IND |?*??1-|Input and Decrement |[HL]=[C],HL=HL-1,B=B-1| | |
518 | ;|INDR |?1??1-|Input, Dec., Repeat |IND till B=0 | | |
519 | ;|INI |?*??1-|Input and Increment |[HL]=[C],HL=HL+1,B=B-1| | |
520 | ;|INIR |?1??1-|Input, Inc., Repeat |INI till B=0 | | |
521 | ;|JP [HL] |------|Unconditional Jump |PC=[HL] | | |
522 | ;|JP [xx] |------|Unconditional Jump |PC=[xx] | | |
523 | ;|JP nn |------|Unconditional Jump |PC=nn | | |
524 | ;|JP cc,nn |------|Conditional Jump |If cc JP | | |
525 | ;|JR e |------|Unconditional Jump |PC=PC+e | | |
526 | ;|JR cc,e |------|Conditional Jump |If cc JR(cc=C,NC,NZ,Z)| | |
527 | ;|LD dst,src|------|Load |dst=src | | |
528 | ;|LD A,i |**0*0-|Load |A=i (i=I,R)| | |
529 | ;|LDD |--0*0-|Load and Decrement |[DE]=[HL],HL=HL-1,# | | |
530 | ;|LDDR |--000-|Load, Dec., Repeat |LDD till BC=0 | | |
531 | ;|LDI |--0*0-|Load and Increment |[DE]=[HL],HL=HL+1,# | | |
532 | ;|LDIR |--000-|Load, Inc., Repeat |LDI till BC=0 | | |
533 | ;|NEG |***V1*|Negate |A=-A | | |
534 | ;|NOP |------|No Operation | | | |
535 | ;|OR s |**0P00|Logical inclusive OR |A=Avs | | |
536 | ;|OTDR |?1??1-|Output, Dec., Repeat |OUTD till B=0 | | |
537 | ;|OTIR |?1??1-|Output, Inc., Repeat |OUTI till B=0 | | |
538 | ;|OUT [C],r |------|Output |[C]=r | | |
539 | ;|OUT [n],A |------|Output |[n]=A | | |
540 | ;|OUTD |?*??1-|Output and Decrement |[C]=[HL],HL=HL-1,B=B-1| | |
541 | ;|OUTI |?*??1-|Output and Increment |[C]=[HL],HL=HL+1,B=B-1| | |
542 | ;|POP xx |------|Pop |xx=[SP]+ | | |
543 | ;|POP qq |------|Pop |qq=[SP]+ | | |
544 | ;|PUSH xx |------|Push |-[SP]=xx | | |
545 | ;|PUSH qq |------|Push |-[SP]=qq | | |
546 | ;|RES b,m |------|Reset bit |m=m&{~2^b} | | |
547 | ;|RET |------|Return |PC=[SP]+ | | |
548 | ;|RET cc |------|Conditional Return |If cc RET | | |
549 | ;|RETI |------|Return from Interrupt|PC=[SP]+ | | |
550 | ;|RETN |------|Return from NMI |PC=[SP]+ | | |
551 | ;|RL m |**0P0*|Rotate Left |m={CY,m}<- | | |
552 | ;|RLA |--0-0*|Rotate Left Acc. |A={CY,A}<- | | |
553 | ;|RLC m |**0P0*|Rotate Left Circular |m=m<- | | |
554 | ;|RLCA |--0-0*|Rotate Left Circular |A=A<- | | |
555 | ;|RLD |**0P0-|Rotate Left 4 bits |{A,[HL]}={A,[HL]}<- ##| | |
556 | ;|RR m |**0P0*|Rotate Right |m=->{CY,m} | | |
557 | ;|RRA |--0-0*|Rotate Right Acc. |A=->{CY,A} | | |
558 | ;|RRC m |**0P0*|Rotate Right Circular|m=->m | | |
559 | ;|RRCA |--0-0*|Rotate Right Circular|A=->A | | |
560 | ;|RRD |**0P0-|Rotate Right 4 bits |{A,[HL]}=->{A,[HL]} ##| | |
561 | ;|RST p |------|Restart | (p=0H,8H,10H,...,38H)| | |
562 | ;|SBC A,s |***V1*|Subtract with Carry |A=A-s-CY | | |
563 | ;|SBC HL,ss |***V1*|Subtract with Carry |HL=HL-ss-CY | | |
564 | ;|SCF |--0-01|Set Carry Flag |CY=1 | | |
565 | ;|SET b,m |------|Set bit |m=mv{2^b} | | |
566 | ;|SLA m |**0P0*|Shift Left Arithmetic|m=m*2 | | |
567 | ;|SRA m |**0P0*|Shift Right Arith. |m=m/2 | | |
568 | ;|SRL m |**0P0*|Shift Right Logical |m=->{0,m,CY} | | |
569 | ;|SUB s |***V1*|Subtract |A=A-s | | |
570 | ;|XOR s |**0P00|Logical Exclusive OR |A=Axs | | |
571 | ;|----------+------+--------------------------------------------| | |
572 | ;| F |-*01? |Flag unaffected/affected/reset/set/unknown | | |
573 | ;| S |S |Sign flag (Bit 7) | | |
574 | ;| Z | Z |Zero flag (Bit 6) | | |
575 | ;| HC | H |Half Carry flag (Bit 4) | | |
576 | ;| P/V | P |Parity/Overflow flag (Bit 2, V=overflow) | | |
577 | ;| N | N |Add/Subtract flag (Bit 1) | | |
578 | ;| CY | C|Carry flag (Bit 0) | | |
579 | ;|-----------------+--------------------------------------------| | |
580 | ;| n |Immediate addressing | | |
581 | ;| nn |Immediate extended addressing | | |
582 | ;| e |Relative addressing (PC=PC+2+offset) | | |
583 | ;| [nn] |Extended addressing | | |
584 | ;| [xx+d] |Indexed addressing | | |
585 | ;| r |Register addressing | | |
586 | ;| [rr] |Register indirect addressing | | |
587 | ;| |Implied addressing | | |
588 | ;| b |Bit addressing | | |
589 | ;| p |Modified page zero addressing (see RST) | | |
590 | ;|-----------------+--------------------------------------------| | |
591 | ;|DEFB n(,...) |Define Byte(s) | | |
592 | ;|DEFB 'str'(,...) |Define Byte ASCII string(s) | | |
593 | ;|DEFS nn |Define Storage Block | | |
594 | ;|DEFW nn(,...) |Define Word(s) | | |
595 | ;|-----------------+--------------------------------------------| | |
596 | ;| A B C D E |Registers (8-bit) | | |
597 | ;| AF BC DE HL |Register pairs (16-bit) | | |
598 | ;| F |Flag register (8-bit) | | |
599 | ;| I |Interrupt page address register (8-bit) | | |
600 | ;| IX IY |Index registers (16-bit) | | |
601 | ;| PC |Program Counter register (16-bit) | | |
602 | ;| R |Memory Refresh register | | |
603 | ;| SP |Stack Pointer register (16-bit) | | |
604 | ;|-----------------+--------------------------------------------| | |
605 | ;| b |One bit (0 to 7) | | |
606 | ;| cc |Condition (C,M,NC,NZ,P,PE,PO,Z) | | |
607 | ;| d |One-byte expression (-128 to +127) | | |
608 | ;| dst |Destination s, ss, [BC], [DE], [HL], [nn] | | |
609 | ;| e |One-byte expression (-126 to +129) | | |
610 | ;| m |Any register r, [HL] or [xx+d] | | |
611 | ;| n |One-byte expression (0 to 255) | | |
612 | ;| nn |Two-byte expression (0 to 65535) | | |
613 | ;| pp |Register pair BC, DE, IX or SP | | |
614 | ;| qq |Register pair AF, BC, DE or HL | | |
615 | ;| qq' |Alternative register pair AF, BC, DE or HL | | |
616 | ;| r |Register A, B, C, D, E, H or L | | |
617 | ;| rr |Register pair BC, DE, IY or SP | | |
618 | ;| s |Any register r, value n, [HL] or [xx+d] | | |
619 | ;| src |Source s, ss, [BC], [DE], [HL], nn, [nn] | | |
620 | ;| ss |Register pair BC, DE, HL or SP | | |
621 | ;| xx |Index register IX or IY | | |
622 | ;|-----------------+--------------------------------------------| | |
623 | ;| + - * / ^ |Add/subtract/multiply/divide/exponent | | |
624 | ;| & ~ v x |Logical AND/NOT/inclusive OR/exclusive OR | | |
625 | ;| <- -> |Rotate left/right | | |
626 | ;| [ ] |Indirect addressing | | |
627 | ;| [ ]+ -[ ] |Indirect addressing auto-increment/decrement| | |
628 | ;| { } |Combination of operands | | |
629 | ;| # |Also BC=BC-1,DE=DE-1 | | |
630 | ;| ## |Only lower 4 bits of accumulator A used | | |
631 | ;---------------------------------------------------------------- | |
632 | ||
633 | ;How the flags are supposed to work: | |
634 | ;7 ZFL_S - Sign flag (=MSBit of result) | |
635 | ;6 ZFL_Z - Zero flag. Is 1 when the result is 0 | |
636 | ;4 ZFL_H - Half-carry (carry from bit 3 to 4) | |
637 | ;2 ZFL_P - Parity/2-complement Overflow | |
638 | ;1 ZFL_N - Subtract - set if last op was a subtract | |
639 | ;0 ZFL_C - Carry | |
640 | ; | |
641 | ;I sure hope I got the mapping between flags and instructions correct... | |
642 | ||
643 | .equ ZFL_S = 7 | |
644 | .equ ZFL_Z = 6 | |
645 | .equ ZFL_H = 4 | |
646 | .equ ZFL_P = 2 | |
647 | .equ ZFL_N = 1 | |
648 | .equ ZFL_C = 0 | |
649 | ||
650 | .equ AVR_T = SREG_T | |
651 | .equ AVR_H = SREG_H | |
652 | .equ AVR_S = SREG_S | |
653 | .equ AVR_V = SREG_V | |
654 | .equ AVR_N = SREG_N | |
655 | .equ AVR_Z = SREG_Z | |
656 | .equ AVR_C = SREG_C | |
657 | ||
658 | ;------------------------------------------------; | |
659 | ; Load table value from flash indexed by source reg. | |
660 | ; | |
661 | ; ldpmx dstreg,tablebase,indexreg | |
662 | ; | |
663 | ; (6 words, 8 cycles) | |
664 | ||
665 | .macro ldpmx | |
666 | ldi zh,high(@1*2) ; table must be page aligned | |
667 | mov zl,@2 | |
668 | lpm @0,z | |
669 | .endm | |
670 | ||
671 | .macro do_z80_flags_V | |
672 | #if EM_Z80 | |
673 | bmov z_flags, ZFL_P, temp, AVR_V | |
674 | #endif | |
675 | .endm | |
676 | ||
677 | .macro do_z80_flags_H | |
678 | #if EM_Z80 | |
679 | bmov z_flags, ZFL_H, temp, AVR_H | |
680 | #endif | |
681 | .endm | |
682 | ||
683 | .macro do_z80_flags_set_N | |
684 | #if EM_Z80 | |
685 | ori z_flags, (1<<ZFL_N) ; Negation auf 1 | |
686 | #endif | |
687 | .endm | |
688 | ||
689 | .macro do_z80_flags_set_HN | |
690 | #if EM_Z80 | |
691 | ori z_flags,(1<<ZFL_N)|(1<<ZFL_H) | |
692 | #endif | |
693 | .endm | |
694 | ||
695 | .macro do_z80_flags_clear_N | |
696 | #if EM_Z80 | |
697 | andi z_flags,~(1<<ZFL_N) | |
698 | #endif | |
699 | .endm | |
700 | ||
701 | .macro do_z80_flags_clear_HN | |
702 | #if EM_Z80 | |
703 | andi z_flags,~((1<<ZFL_H)|(1<<ZFL_N)) | |
704 | #endif | |
705 | .endm | |
706 | ||
707 | ||
708 | .macro do_z80_flags_copy_HC | |
709 | #if EM_Z80 | |
710 | bmov z_flags, ZFL_H, z_flags, ZFL_H | |
711 | #endif | |
712 | .endm | |
713 | ||
714 | .macro do_z80_flags_op_rotate | |
715 | ; must not change avr carry flag! | |
716 | #if EM_Z80 | |
717 | andi z_flags, ~( (1<<ZFL_H) | (1<<ZFL_N) | (1<<ZFL_C) ) | |
718 | #else | |
719 | andi z_flags, ~( (1<<ZFL_C) ) | |
720 | #endif | |
721 | .endm | |
722 | ||
723 | .macro do_z80_flags_op_and | |
724 | #if EM_Z80 | |
725 | ori z_flags,(1<<ZFL_H) | |
726 | #endif | |
727 | .endm | |
728 | ||
729 | .macro do_z80_flags_op_or | |
730 | #if EM_Z80 | |
731 | ;nothing to do | |
732 | #endif | |
733 | .endm | |
734 | ||
735 | ||
736 | ;---------------------------------------------------------------- | |
737 | ||
738 | do_op_inv: | |
739 | sbiw z_pcl,1 | |
740 | lcall printregs | |
741 | printstring "Invalid opcode! " | |
742 | ||
743 | haltinv: | |
744 | rjmp haltinv | |
745 | ||
746 | do_op_nop: | |
747 | ret | |
748 | ||
749 | ;---------------------------------------------------------------- | |
750 | ;|Mnemonic |SZHPNC|Description |Notes | | |
751 | ;---------------------------------------------------------------- | |
752 | ;|OUT [n],A |------|Output |[n]=A | | |
753 | ; | |
754 | ; | |
755 | ;Interface with peripherials goes here :) | |
756 | do_op_outa: ; out (opl),a | |
757 | .if PORT_DEBUG | |
758 | printnewline | |
759 | printstring "Port write: " | |
760 | mov temp,z_a | |
761 | lcall printhex | |
762 | printstring " -> (" | |
763 | mov temp,opl | |
764 | lcall printhex | |
765 | printstring ") " | |
766 | .endif | |
767 | mov temp,z_a | |
768 | mov temp2,opl | |
769 | lcall portWrite | |
770 | ret | |
771 | ||
772 | ;---------------------------------------------------------------- | |
773 | ;|Mnemonic |SZHPNC|Description |Notes | | |
774 | ;---------------------------------------------------------------- | |
775 | ;|IN A,[n] |------|Input |A=[n] | | |
776 | ; | |
777 | ; | |
778 | do_op_ina: ; in a,(opl) | |
779 | .if PORT_DEBUG | |
780 | printnewline | |
781 | printstring "Port read: (" | |
782 | mov temp,opl | |
783 | lcall printhex | |
784 | printstring ") -> " | |
785 | .endif | |
786 | ||
787 | mov temp2,opl | |
788 | lcall portRead | |
789 | mov z_a,temp | |
790 | ||
791 | .if PORT_DEBUG | |
792 | lcall printhex | |
793 | printstring " " | |
794 | .endif | |
795 | ret | |
796 | ||
797 | ;---------------------------------------------------------------- | |
798 | ;|Mnemonic |SZHPNC|Description |Notes | | |
799 | ;---------------------------------------------------------------- | |
800 | ;|INC r |***V0-|Increment |r=r+1 | | |
801 | ;|INC [HL] |***V0-|Increment |[HL]=[HL]+1 | | |
802 | ;|INC [xx+d]|***V0-|Increment |[xx+d]=[xx+d]+1 | | |
803 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
804 | ;|INC r |**-P0-|Increment |r=r+1 | | |
805 | ;|INC [HL] |**-P0-|Increment |[HL]=[HL]+1 | | |
806 | ; | |
807 | ; | |
808 | do_op_inc: | |
809 | ldi temp,1 | |
810 | add opl,temp | |
811 | in temp, sreg | |
812 | andi z_flags,(1<<ZFL_C) ; preserve C-flag | |
813 | ldpmx temp2, sz53p_tab, opl | |
814 | or z_flags,temp2 ; | |
815 | bmov z_flags, ZFL_H, temp, AVR_H | |
816 | do_z80_flags_V | |
817 | ret | |
818 | ||
819 | do_op_inca: | |
820 | ldi temp,1 | |
821 | add z_a,temp | |
822 | in temp, sreg | |
823 | andi z_flags,(1<<ZFL_C) ; preserve C-flag | |
824 | ldpmx temp2, sz53p_tab, z_a | |
825 | or z_flags,temp2 ; | |
826 | bmov z_flags, ZFL_H, temp, AVR_H | |
827 | do_z80_flags_V | |
828 | ret | |
829 | ||
830 | ;---------------------------------------------------------------- | |
831 | ;|Mnemonic |SZHPNC|Description |Notes | | |
832 | ;---------------------------------------------------------------- | |
833 | ;|DEC r |***V1-|Decrement |s=s-1 | | |
834 | ;|INC [HL] |***V0-|Increment |[HL]=[HL]+1 | | |
835 | ;|INC [xx+d]|***V0-|Increment |[xx+d]=[xx+d]+1 | | |
836 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
837 | ;|DEC r |**-P -|Increment |r=r+1 | | |
838 | ;|DEC [HL] |**-P -|Increment |[HL]=[HL]+1 | | |
839 | ; | |
840 | ; | |
841 | do_op_dec: | |
842 | subi opl,1 | |
843 | in temp, sreg | |
844 | andi z_flags,(1<<ZFL_C) ; preserve C-flag | |
845 | ldpmx temp2, sz53p_tab, opl | |
846 | or z_flags,temp2 ; | |
847 | bmov z_flags, ZFL_H, temp, AVR_H | |
848 | do_z80_flags_V | |
849 | do_z80_flags_set_N | |
850 | ret | |
851 | ||
852 | do_op_deca: | |
853 | ldi opl,1 | |
854 | sub z_a,opl | |
855 | in temp, sreg | |
856 | andi z_flags,(1<<ZFL_C) ; preserve C-flag | |
857 | ldpmx temp2, sz53p_tab, z_a | |
858 | or z_flags,temp2 ; | |
859 | bmov z_flags, ZFL_H, temp, AVR_H | |
860 | do_z80_flags_V | |
861 | do_z80_flags_set_N | |
862 | ret | |
863 | ||
864 | ;---------------------------------------------------------------- | |
865 | ;|Mnemonic |SZHPNC|Description |Notes | | |
866 | ;---------------------------------------------------------------- | |
867 | ;|INC xx |------|Increment |xx=xx+1 | | |
868 | ;|INC ss |------|Increment |ss=ss+1 | | |
869 | ; | |
870 | ; | |
871 | do_op_inc16: | |
872 | subi opl,low(-1) | |
873 | sbci oph,high(-1) | |
874 | ret | |
875 | ||
876 | ;---------------------------------------------------------------- | |
877 | ;|Mnemonic |SZHPNC|Description |Notes | | |
878 | ;---------------------------------------------------------------- | |
879 | ;|DEC xx |------|Decrement |xx=xx-1 | | |
880 | ;|DEC ss |------|Decrement |ss=ss-1 | | |
881 | ; | |
882 | ; | |
883 | do_op_dec16: | |
884 | subi opl, 1 | |
885 | sbci oph, 0 | |
886 | ret | |
887 | ||
888 | ;---------------------------------------------------------------- | |
889 | ;|Mnemonic |SZHPNC|Description |Notes | | |
890 | ;---------------------------------------------------------------- | |
891 | ;|RLCA |--0-0*|Rotate Left Circular |A=A<- | | |
892 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
893 | ;|RLCA |---- *|Rotate Left Circular |A=A<- | | |
894 | ; | |
895 | ; | |
896 | do_op_rlca: | |
897 | ;Rotate Left Cyclical. All bits move 1 to the | |
898 | ;left, the msb becomes c and lsb. | |
899 | do_z80_flags_op_rotate | |
900 | lsl z_a | |
901 | brcc do_op_rlc_noc | |
902 | ldi temp,1 | |
903 | or z_a,temp | |
904 | ori z_flags, (1<<ZFL_C) | |
905 | do_op_rlc_noc: | |
906 | ret | |
907 | ||
908 | ;---------------------------------------------------------------- | |
909 | ;|Mnemonic |SZHPNC|Description |Notes | | |
910 | ;---------------------------------------------------------------- | |
911 | ;|RRCA |--0-0*|Rotate Right Circular|A=->A | | |
912 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
913 | ;|RRCA |---- *|Rotate Right Circular|A=->A | | |
914 | ; | |
915 | ; | |
916 | do_op_rrca: | |
917 | ;Rotate Right Cyclical. All bits move 1 to the | |
918 | ;right, the lsb becomes c and msb. | |
919 | do_z80_flags_op_rotate | |
920 | lsr z_a | |
921 | brcc do_op_rrc_noc | |
922 | ldi temp,0x80 | |
923 | or z_a,temp | |
924 | ori z_flags, (1<<ZFL_C) | |
925 | do_op_rrc_noc: | |
926 | ret | |
927 | ||
928 | ;---------------------------------------------------------------- | |
929 | ;|Mnemonic |SZHPNC|Description |Notes | | |
930 | ;---------------------------------------------------------------- | |
931 | ;|RRA |--0-0*|Rotate Right Acc. |A=->{CY,A} | | |
932 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
933 | ;|RRA |---- *|Rotate Right Acc. |A=->{CY,A} | | |
934 | ; | |
935 | ; | |
936 | do_op_rra: | |
937 | ;Rotate Right. All bits move 1 to the right, the lsb | |
938 | ;becomes c, c becomes msb. | |
939 | clc ; get z80 carry to avr carry | |
940 | sbrc z_flags,ZFL_C | |
941 | sec | |
942 | do_z80_flags_op_rotate ; (clear ZFL_C, doesn't change AVR_C) | |
943 | bmov z_flags,ZFL_C, z_a,0 ; Bit 0 --> CY | |
944 | ror z_a | |
945 | ret | |
946 | ||
947 | ;---------------------------------------------------------------- | |
948 | ;|Mnemonic |SZHPNC|Description |Notes | | |
949 | ;---------------------------------------------------------------- | |
950 | ;|RLA |--0-0*|Rotate Left Acc. |A={CY,A}<- | | |
951 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
952 | ;|RLA |---- *|Rotate Left Acc. |A={CY,A}<- | | |
953 | ; | |
954 | ; | |
955 | do_op_rla: | |
956 | ;Rotate Left. All bits move 1 to the left, the msb | |
957 | ;becomes c, c becomes lsb. | |
958 | clc | |
959 | sbrc z_flags,ZFL_C | |
960 | sec | |
961 | do_z80_flags_op_rotate ; (clear ZFL_C, doesn't change AVR_C) | |
962 | bmov z_flags,ZFL_C, z_a,7 ; Bit 7 --> CY | |
963 | rol z_a | |
964 | ret | |
965 | ||
966 | ;---------------------------------------------------------------- | |
967 | ;|Mnemonic |SZHPNC|Description |Notes | | |
968 | ;---------------------------------------------------------------- | |
969 | ;|ADD A,s |***V0*|Add |A=A+s | | |
970 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
971 | ;|ADD A,s |***P *|Add |A=A+s | | |
972 | ; | |
973 | ; | |
974 | do_op_adda: | |
975 | add z_a,opl | |
976 | in temp,sreg | |
977 | ldpmx z_flags,sz53p_tab,z_a ;S,Z,P flag | |
978 | bmov z_flags,ZFL_C, temp,AVR_C | |
979 | bmov z_flags,ZFL_H, temp,AVR_H | |
980 | do_z80_flags_V | |
981 | ret | |
982 | ||
983 | ;---------------------------------------------------------------- | |
984 | ;|Mnemonic |SZHPNC|Description |Notes | | |
985 | ;---------------------------------------------------------------- | |
986 | ;|ADC A,s |***V0*|Add with Carry |A=A+s+CY | | |
987 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
988 | ;|ADC A,s |***P *|Add with Carry |A=A+s+CY | | |
989 | ; | |
990 | ; | |
991 | do_op_adca: | |
992 | clc | |
993 | sbrc z_flags,ZFL_C | |
994 | sec | |
995 | adc z_a,opl | |
996 | in temp,sreg | |
997 | ldpmx z_flags,sz53p_tab,z_a ;S,Z,P | |
998 | bmov z_flags,ZFL_C, temp,AVR_C | |
999 | bmov z_flags,ZFL_H, temp,AVR_H | |
1000 | do_z80_flags_V | |
1001 | ret | |
1002 | ||
1003 | ;---------------------------------------------------------------- | |
1004 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1005 | ;---------------------------------------------------------------- | |
1006 | ;|SUB s |***V1*|Subtract |A=A-s | | |
1007 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
1008 | ;|SUB s |***P *|Subtract |A=A-s | | |
1009 | ||
1010 | ; | |
1011 | do_op_subfa: | |
1012 | sub z_a,opl | |
1013 | in temp,sreg | |
1014 | ldpmx z_flags,sz53p_tab,z_a ;S,Z,P | |
1015 | bmov z_flags,ZFL_C, temp,AVR_C | |
1016 | bmov z_flags,ZFL_H, temp,AVR_H | |
1017 | do_z80_flags_V | |
1018 | do_z80_flags_set_N | |
1019 | ret | |
1020 | ||
1021 | ;---------------------------------------------------------------- | |
1022 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1023 | ;---------------------------------------------------------------- | |
1024 | ;|CP s |***V1*|Compare |A-s | | |
1025 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
1026 | ;|CP s |***P *|Compare |A-s | | |
1027 | ||
1028 | ; | |
1029 | do_op_cpfa: | |
1030 | mov temp2,z_a | |
1031 | sub temp2,opl | |
1032 | in temp,sreg | |
1033 | ldpmx z_flags,sz53p_tab,temp2 ;S,Z,P | |
1034 | bmov z_flags,ZFL_C, temp,AVR_C | |
1035 | bmov z_flags,ZFL_H, temp,AVR_H | |
1036 | do_z80_flags_V | |
1037 | do_z80_flags_set_N | |
1038 | ret | |
1039 | ||
1040 | ;---------------------------------------------------------------- | |
1041 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1042 | ;---------------------------------------------------------------- | |
1043 | ;|SBC A,s |***V1*|Subtract with Carry |A=A-s-CY | | |
1044 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
1045 | ;|SBC A,s |***P *|Subtract with Carry |A=A-s-CY | | |
1046 | ; | |
1047 | ; | |
1048 | do_op_sbcfa: | |
1049 | clc | |
1050 | sbrc z_flags,ZFL_C | |
1051 | sec | |
1052 | sbc z_a,opl | |
1053 | in temp,sreg | |
1054 | ldpmx z_flags,sz53p_tab,z_a ;S,Z,P | |
1055 | bmov z_flags,ZFL_C, temp,AVR_C | |
1056 | bmov z_flags,ZFL_H, temp,AVR_H | |
1057 | do_z80_flags_V | |
1058 | do_z80_flags_set_N | |
1059 | ret | |
1060 | ||
1061 | ;---------------------------------------------------------------- | |
1062 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1063 | ;---------------------------------------------------------------- | |
1064 | ;|AND s |**1P00|Logical AND |A=A&s | | |
1065 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
1066 | ;|AND s |**-P 0|Logical AND |A=A&s | | |
1067 | ; | |
1068 | ; | |
1069 | do_op_anda: | |
1070 | and z_a,opl ; | |
1071 | ldpmx z_flags,sz53p_tab,z_a ;S,Z,P,N,C | |
1072 | do_z80_flags_op_and | |
1073 | ret | |
1074 | ||
1075 | ||
1076 | ;---------------------------------------------------------------- | |
1077 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1078 | ;---------------------------------------------------------------- | |
1079 | ;|OR s |**0P00|Logical inclusive OR |A=Avs | | |
1080 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
1081 | ;|OR s |**-P00|Logical inclusive OR |A=Avs | | |
1082 | ; | |
1083 | ; | |
1084 | do_op_ora: | |
1085 | or z_a,opl | |
1086 | ldpmx z_flags,sz53p_tab,z_a ;S,Z,H,P,N,C | |
1087 | do_z80_flags_op_or | |
1088 | ret | |
1089 | ||
1090 | ;---------------------------------------------------------------- | |
1091 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1092 | ;---------------------------------------------------------------- | |
1093 | ;|XOR s |**0P00|Logical Exclusive OR |A=Axs | | |
1094 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
1095 | ;|XOR s |**-P 0|Logical Exclusive OR |A=Axs | | |
1096 | ; | |
1097 | ; | |
1098 | do_op_xora: | |
1099 | eor z_a,opl | |
1100 | ldpmx z_flags,sz53p_tab,z_a ;S,Z,H,P,N,C | |
1101 | do_z80_flags_op_or | |
1102 | ret | |
1103 | ||
1104 | ;---------------------------------------------------------------- | |
1105 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1106 | ;---------------------------------------------------------------- | |
1107 | ;|ADD HL,ss |--?-0*|Add |HL=HL+ss | | |
1108 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
1109 | ;|ADD HL,ss |---- *|Add |HL=HL+ss | | |
1110 | ; | |
1111 | ; | |
1112 | do_op_addhl: | |
1113 | lds temp,z_l | |
1114 | lds temp2,z_h | |
1115 | add opl,temp | |
1116 | adc oph,temp2 | |
1117 | sts z_l,opl | |
1118 | sts z_h,oph | |
1119 | in temp,sreg | |
1120 | bmov z_flags,ZFL_C, temp,AVR_C | |
1121 | do_z80_flags_H | |
1122 | do_z80_flags_clear_N | |
1123 | ret | |
1124 | ||
1125 | ;---------------------------------------------------------------- | |
1126 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1127 | ;---------------------------------------------------------------- | |
1128 | ;|LD dst,src|------|Load |dst=src | | |
1129 | ; | |
1130 | ; | |
1131 | do_op_sthl: ;store hl to mem loc in opl:h | |
1132 | movw xl,opl | |
1133 | lds temp,z_l | |
1134 | mem_write | |
1135 | adiw xl,1 | |
1136 | lds temp,z_h | |
1137 | mem_write | |
1138 | ret | |
1139 | ||
1140 | ;---------------------------------------------------------------- | |
1141 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1142 | ;---------------------------------------------------------------- | |
1143 | ;|LD dst,src|------|Load |dst=src | | |
1144 | ; | |
1145 | ; | |
1146 | do_op_rmem16: | |
1147 | movw xl,opl | |
1148 | mem_read_d opl | |
1149 | adiw x,1 | |
1150 | mem_read_d oph | |
1151 | ret | |
1152 | ||
1153 | ;---------------------------------------------------------------- | |
1154 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1155 | ;---------------------------------------------------------------- | |
1156 | ;|LD dst,src|------|Load |dst=src | | |
1157 | ; | |
1158 | ; | |
1159 | do_op_rmem8: | |
1160 | mem_read_ds opl, op | |
1161 | ret | |
1162 | ||
1163 | ;---------------------------------------------------------------- | |
1164 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1165 | ;---------------------------------------------------------------- | |
1166 | ;|DAA |***P-*|Decimal Adjust Acc. | | | |
1167 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
1168 | ; | |
1169 | ; Not yet checked | |
1170 | ||
1171 | ; Description (http://www.z80.info/z80syntx.htm#DAA): | |
1172 | ; This instruction conditionally adjusts the accumulator for BCD addition | |
1173 | ; and subtraction operations. For addition (ADD, ADC, INC) or subtraction | |
1174 | ; (SUB, SBC, DEC, NEC), the following table indicates the operation performed: | |
1175 | ; | |
1176 | ; ------------------------------------------------------------------- | |
1177 | ; | |C Flag |HEX value in|H Flag |HEX val in | Number |C flag | | |
1178 | ; | Oper |Before |upper digit |Before |lower digit| added |After | | |
1179 | ; | |DAA |(bit 7-4) |DAA |(bit 3-0) | to A |DAA | | |
1180 | ; |-------+-------+------------+-------+-----------+--------+-------| | |
1181 | ; | | 0 | 0-9 | 0 | 0-9 | 00 | 0 | | |
1182 | ; | ADD | 0 | 0-8 | 0 | A-F | 06 | 0 | | |
1183 | ; | | 0 | 0-9 | 1 | 0-3 | 06 | 0 | | |
1184 | ; | ADC | 0 | A-F | 0 | 0-9 | 60 | 1 | | |
1185 | ; | | 0 | 9-F | 0 | A-F | 66 | 1 | | |
1186 | ; | INC | 0 | A-F | 1 | 0-3 | 66 | 1 | | |
1187 | ; | | 1 | 0-2 | 0 | 0-9 | 60 | 1 | | |
1188 | ; | | 1 | 0-2 | 0 | A-F | 66 | 1 | | |
1189 | ; | | 1 | 0-3 | 1 | 0-3 | 66 | 1 | | |
1190 | ; |-------+-------+------------+-------+-----------+--------+-------| | |
1191 | ; | SUB | 0 | 0-9 | 0 | 0-9 | 00 | 0 | | |
1192 | ; | SBC | 0 | 0-8 | 1 | 6-F | FA | 0 | | |
1193 | ; | DEC | 1 | 7-F | 0 | 0-9 | A0 | 1 | | |
1194 | ; | NEG | 1 | 6-F | 1 | 6-F | 9A | 1 | | |
1195 | ; ------------------------------------------------------------------- | |
1196 | ; | |
1197 | ; The H flag is affected as follows: | |
1198 | ; | |
1199 | ; --------------------- | |
1200 | ; | N | H | low |H' | | |
1201 | ; | | |nibble | | | |
1202 | ; |---+---+-------+---| | |
1203 | ; | 0 | * | 0-9 | 0 | | |
1204 | ; | 0 | * | a-f | 1 | | |
1205 | ; | 1 | 0 | * | 0 | | |
1206 | ; | 1 | 1 | 6-f | 0 | | |
1207 | ; | 1 | 1 | 0-5 | 1 | | |
1208 | ; --------------------- | |
1209 | ; | |
1210 | ; Ohter flags: | |
1211 | ; N: Unaffected. | |
1212 | ; P/V: Set if Acc. is even parity after operation, reset otherwise. | |
1213 | ; Z: Set if Acc. is Zero after operation, reset otherwise. | |
1214 | ; S: Set if most significant bit of Acc. is 1 after operation, reset otherwise. | |
1215 | ||
1216 | #if 1 | |
1217 | ||
1218 | do_op_da: | |
1219 | ||
1220 | #if EM_Z80 | |
1221 | sbrc z_flags,ZFL_N ;if add-op | |
1222 | rjmp op_da_sub ;then | |
1223 | #endif | |
1224 | ||
1225 | op_da_add: | |
1226 | ldi temp2,0 ; new C and H flag | |
1227 | sbrc z_flags,ZFL_H ; | | |
1228 | rjmp op_da_a01 ; if (H flag ... | |
1229 | mov temp,opl ; | | |
1230 | andi temp,0x0f ; | | |
1231 | cpi temp,0x0a ; or (lower nibble >= 0x0A)) | |
1232 | brlo op_da_a10 ; | | |
1233 | op_da_a01: ; then | |
1234 | ldi oph,0x06 ; add 6 to lower nibble | |
1235 | add opl,oph ; | |
1236 | brhc op_da_02 ; if | |
1237 | ori temp2,(1<<ZFL_H) ; set new H flag | |
1238 | op_da_02: ; | |
1239 | brcc op_da_a10 ; if | |
1240 | ori temp2,(1<<ZFL_C) ; set new H flag | |
1241 | op_da_a10: ; endif | |
1242 | sbrc z_flags,ZFL_C ; | | |
1243 | rjmp op_da_a12 ; if (C flag ... | |
1244 | cpi opl,0xA0 ; |... or upper nibble >= 0xA0) | |
1245 | brlo op_da_a13 ; | |
1246 | op_da_a12: ; | |
1247 | ldi oph,0x60 ; add 6 to lower nibble | |
1248 | add opl,oph ; | |
1249 | ori temp2,(1<<ZFL_C) ; set new C flag | |
1250 | op_da_a13: ; | |
1251 | ldpmx z_flags, sz53p_tab, opl ; get S,Z,P flag | |
1252 | or z_flags,temp2 ; merge new C and H flag | |
1253 | ret | |
1254 | ||
1255 | #if EM_Z80 | |
1256 | ||
1257 | op_da_sub: ;else (sub-op) | |
1258 | rcall do_op_inv ; TODO: ! | |
1259 | ret ;endif | |
1260 | #endif | |
1261 | ||
1262 | #else | |
1263 | ||
1264 | do_op_da: | |
1265 | ldi temp2,0 ;new C and H flag | |
1266 | ldi oph,0 ;oph: what to add | |
1267 | ||
1268 | sbrc z_flags,ZFL_N ;if add-op | |
1269 | rjmp op_da_sub ;then | |
1270 | op_da_add: | |
1271 | mov temp,opl ; | | |
1272 | andi temp,0x0f ; | | |
1273 | cpi temp,0x0a ; if (lower nibble >= 0x0A) | |
1274 | brlo op_da_a10 ; | | |
1275 | ori oph,0x06 ; add 6 | |
1276 | ori temp2,(1<<ZFL_H) ; set new H flag | |
1277 | ||
1278 | sbrc z_flags,ZFL_C ; | | |
1279 | rjmp op_da_a02 ; if (C flag ... | |
1280 | cpi opl,0x90 ; |... or upper nibble >= 0x90) | |
1281 | brlo op_da_a03 ; | | |
1282 | op_da_a02: | |
1283 | ori oph,0x60 ; add 0x60 | |
1284 | ori temp2,(1<<ZFL_C) ; set new C flag | |
1285 | op_da_a03: ; endif | |
1286 | rjmp op_da_ae | |
1287 | op_da_a10: ; else (lower nibble is 0x09 or lower) | |
1288 | sbrc z_flags,ZFL_C ; | | |
1289 | rjmp op_da_a12 ; if (C flag ... | |
1290 | cpi opl,0xA0 ; |... or upper nibble >= 0xA0) | |
1291 | brlo op_da_a13 ; | |
1292 | op_da_a12: | |
1293 | ori oph,0x60 ; add 0x60 | |
1294 | ori temp2,(1<<ZFL_C) ; set new C flag | |
1295 | op_da_a13: | |
1296 | sbrs z_flags,ZFL_H ; if (H flag) | |
1297 | rjmp op_da_ae ; | | |
1298 | ori oph,0x06 ; add 0x06 | |
1299 | mov temp,opl ; | | |
1300 | andi temp,0x0f ; | | |
1301 | cpi temp,0x06 ; if (lower nibble >= 0x0A) | |
1302 | brsh op_da_ae ; | | |
1303 | ori temp2,(1<<ZFL_H) ; set new H flag | |
1304 | ; endif | |
1305 | ; endif | |
1306 | op_da_ae: | |
1307 | add opl,oph | |
1308 | ldpmx z_flags, sz53p_tab, opl ; get S,Z,P flag | |
1309 | or z_flags,temp2 ; merge new C and H flag | |
1310 | ret | |
1311 | ||
1312 | op_da_sub: ;else (sub-op) | |
1313 | rcall do_op_inv ; TODO: ! | |
1314 | ret ;endif | |
1315 | #endif | |
1316 | ||
1317 | ||
1318 | ;---------------------------------------------------------------- | |
1319 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1320 | ;---------------------------------------------------------------- | |
1321 | ;|SCF |--0-01|Set Carry Flag |CY=1 | | |
1322 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
1323 | ; | |
1324 | ; | |
1325 | do_op_scf: | |
1326 | do_z80_flags_clear_HN | |
1327 | ori z_flags,(1<<ZFL_C) | |
1328 | ret | |
1329 | ||
1330 | ;---------------------------------------------------------------- | |
1331 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1332 | ;---------------------------------------------------------------- | |
1333 | ;|CCF |--?-0*|Complement Carry Flag|CY=~CY, HC=previous CY| | |
1334 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
1335 | ;|CCF |---- 1|Set Carry Flag |CY=1 | | |
1336 | ; | |
1337 | do_op_ccf: | |
1338 | do_z80_flags_clear_N | |
1339 | do_z80_flags_copy_HC | |
1340 | ldi temp,(1<<ZFL_C) | |
1341 | eor z_flags,temp | |
1342 | ret | |
1343 | ||
1344 | ;---------------------------------------------------------------- | |
1345 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1346 | ;---------------------------------------------------------------- | |
1347 | ;|CPL |--1-1-|Complement |A=~A | | |
1348 | ;|----------|SZHP C|---------- 8080 ----------------------------| | |
1349 | ;|CPL |---- -|Complement |A=~A | | |
1350 | ; | |
1351 | ; | |
1352 | do_op_cpl: | |
1353 | com z_a | |
1354 | do_z80_flags_set_HN | |
1355 | ret | |
1356 | ||
1357 | ||
1358 | ;---------------------------------------------------------------- | |
1359 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1360 | ;---------------------------------------------------------------- | |
1361 | ;|PUSH xx |------|Push |-[SP]=xx | | |
1362 | ;|PUSH qq |------|Push |-[SP]=qq | | |
1363 | ; | |
1364 | ; | |
1365 | do_op_push16: | |
1366 | movw xl,z_spl | |
1367 | sbiw x,1 | |
1368 | mem_write_s oph | |
1369 | sbiw x,1 | |
1370 | mem_write_s opl | |
1371 | movw z_spl,xl | |
1372 | ||
1373 | .if STACK_DBG | |
1374 | printnewline | |
1375 | printstring "Stack push " | |
1376 | movw temp,opl | |
1377 | rcall printhexw | |
1378 | printstring ", SP is now " | |
1379 | movw temp,z_spl | |
1380 | rcall printhexw | |
1381 | printstring ". " | |
1382 | .endif | |
1383 | ||
1384 | ret | |
1385 | ||
1386 | ;---------------------------------------------------------------- | |
1387 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1388 | ;---------------------------------------------------------------- | |
1389 | ;|POP xx |------|Pop |xx=[SP]+ | | |
1390 | ;|POP qq |------|Pop |qq=[SP]+ | | |
1391 | ; | |
1392 | ; | |
1393 | do_op_pop16: | |
1394 | movw x,z_spl | |
1395 | mem_read_d opl | |
1396 | adiw x,1 | |
1397 | mem_read_d oph | |
1398 | adiw x,1 | |
1399 | movw z_spl,x | |
1400 | ||
1401 | .if STACK_DBG | |
1402 | printnewline | |
1403 | printstring "Stack pop " | |
1404 | movw temp,opl | |
1405 | rcall printhexw | |
1406 | printstring ", SP is now " | |
1407 | movw temp,z_spl | |
1408 | rcall printhexw | |
1409 | printstring ". " | |
1410 | .endif | |
1411 | ret | |
1412 | ||
1413 | ;---------------------------------------------------------------- | |
1414 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1415 | ;---------------------------------------------------------------- | |
1416 | ;|EX [SP],HL|------|Exchange |[SP]<->HL | | |
1417 | ;|EX DE,HL |------|Exchange |DE<->HL | | |
1418 | ;-----------------------------Z80-------------------------------- | |
1419 | ; | |
1420 | do_op_exhl: | |
1421 | lds temp,z_l | |
1422 | lds temp2,z_h | |
1423 | sts z_l,opl | |
1424 | sts z_h,oph | |
1425 | movw opl,temp | |
1426 | ret | |
1427 | ||
1428 | ;---------------------------------------------------------------- | |
1429 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1430 | ;---------------------------------------------------------------- | |
1431 | ; | |
1432 | ; TODO: Implement IFF1, IFF2 | |
1433 | do_op_di: | |
1434 | ret | |
1435 | ||
1436 | ;---------------------------------------------------------------- | |
1437 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1438 | ;---------------------------------------------------------------- | |
1439 | ; | |
1440 | ; TODO: Implement IFF1, IFF2 | |
1441 | do_op_ei: | |
1442 | ret | |
1443 | ||
1444 | ;---------------------------------------------------------------- | |
1445 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1446 | ;---------------------------------------------------------------- | |
1447 | ;|CALL cc,nn|------|Conditional Call |If cc CALL | | |
1448 | ;|JP cc,nn |------|Conditional Jump |If cc JP | | |
1449 | ;|RET cc |------|Conditional Return |If cc RET | | |
1450 | ; | |
1451 | ; | |
1452 | do_op_ifnz: | |
1453 | sbrs z_flags, ZFL_Z | |
1454 | ret | |
1455 | pop temp ; nix tun | |
1456 | pop temp ; direkt zurueck zu main | |
1457 | ret | |
1458 | ||
1459 | ;---------------------------------------------------------------- | |
1460 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1461 | ;---------------------------------------------------------------- | |
1462 | ;|CALL cc,nn|------|Conditional Call |If cc CALL | | |
1463 | ;|JP cc,nn |------|Conditional Jump |If cc JP | | |
1464 | ;|RET cc |------|Conditional Return |If cc RET | | |
1465 | ; | |
1466 | ; | |
1467 | do_op_ifz: | |
1468 | sbrc z_flags, ZFL_Z | |
1469 | ret | |
1470 | pop temp ; nix tun | |
1471 | pop temp ; direkt zurueck zu main | |
1472 | ret | |
1473 | ||
1474 | ;---------------------------------------------------------------- | |
1475 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1476 | ;---------------------------------------------------------------- | |
1477 | ;|CALL cc,nn|------|Conditional Call |If cc CALL | | |
1478 | ;|JP cc,nn |------|Conditional Jump |If cc JP | | |
1479 | ;|RET cc |------|Conditional Return |If cc RET | | |
1480 | ; | |
1481 | ; | |
1482 | do_op_ifnc: | |
1483 | sbrs z_flags, ZFL_C | |
1484 | ret | |
1485 | pop temp ; nix tun | |
1486 | pop temp ; direkt zuruech zu main | |
1487 | ret | |
1488 | ||
1489 | ;---------------------------------------------------------------- | |
1490 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1491 | ;---------------------------------------------------------------- | |
1492 | ;|CALL cc,nn|------|Conditional Call |If cc CALL | | |
1493 | ;|JP cc,nn |------|Conditional Jump |If cc JP | | |
1494 | ;|RET cc |------|Conditional Return |If cc RET | | |
1495 | ; | |
1496 | ; | |
1497 | do_op_ifc: | |
1498 | sbrc z_flags, ZFL_C | |
1499 | ret | |
1500 | pop temp ; nix tun | |
1501 | pop temp ; direkt zuruech zu main | |
1502 | ret | |
1503 | ||
1504 | ;---------------------------------------------------------------- | |
1505 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1506 | ;---------------------------------------------------------------- | |
1507 | ;|CALL cc,nn|------|Conditional Call |If cc CALL | | |
1508 | ;|JP cc,nn |------|Conditional Jump |If cc JP | | |
1509 | ;|RET cc |------|Conditional Return |If cc RET | | |
1510 | ; | |
1511 | ; | |
1512 | do_op_ifpo: | |
1513 | sbrs z_flags, ZFL_P | |
1514 | ret | |
1515 | pop temp ; nix tun | |
1516 | pop temp ; direkt zuruech zu main | |
1517 | ret | |
1518 | ||
1519 | ;---------------------------------------------------------------- | |
1520 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1521 | ;---------------------------------------------------------------- | |
1522 | ;|CALL cc,nn|------|Conditional Call |If cc CALL | | |
1523 | ;|JP cc,nn |------|Conditional Jump |If cc JP | | |
1524 | ;|RET cc |------|Conditional Return |If cc RET | | |
1525 | ; | |
1526 | ; | |
1527 | do_op_ifpe: | |
1528 | sbrc z_flags, ZFL_P | |
1529 | ret | |
1530 | pop temp ; nix tun | |
1531 | pop temp ; direkt zuruech zu main | |
1532 | ret | |
1533 | ||
1534 | ;---------------------------------------------------------------- | |
1535 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1536 | ;---------------------------------------------------------------- | |
1537 | ;|CALL cc,nn|------|Conditional Call |If cc CALL | | |
1538 | ;|JP cc,nn |------|Conditional Jump |If cc JP | | |
1539 | ;|RET cc |------|Conditional Return |If cc RET | | |
1540 | ; | |
1541 | ; | |
1542 | do_op_ifp: ;sign positive, aka s=0 | |
1543 | sbrs z_flags, ZFL_S | |
1544 | ret | |
1545 | pop temp ; nix tun | |
1546 | pop temp ; direkt zuruech zu main | |
1547 | ret | |
1548 | ||
1549 | ;---------------------------------------------------------------- | |
1550 | ;|Mnemonic |SZHPNC|Description |Notes | | |
1551 | ;---------------------------------------------------------------- | |
1552 | ;|CALL cc,nn|------|Conditional Call |If cc CALL | | |
1553 | ;|JP cc,nn |------|Conditional Jump |If cc JP | | |
1554 | ;|RET cc |------|Conditional Return |If cc RET | | |
1555 | ; | |
1556 | ; | |
1557 | do_op_ifm: ;sign negative, aka s=1 | |
1558 | sbrc z_flags, ZFL_S | |
1559 | ret | |
1560 | pop temp ; nix tun | |
1561 | pop temp ; direkt zuruech zu main | |
1562 | ret | |
1563 | ||
1564 | ||
1565 | ; ----------------------- Opcode decoding ------------------------- | |
1566 | ||
1567 | ; Lookup table for Z80 opcodes. Translates the first byte of the instruction word into three | |
1568 | ; operations: fetch, do something, store. | |
1569 | ; The table is made of 256 words. | |
1570 | ||
1571 | ; .org (PC+255) & 0xff00 | |
1572 | ||
1573 | ;todo_table: | |
1574 | ;opcjmp: | |
1575 | instr do_fetch_nop, op_nop, do_store_nop ;00 ;NOP | |
1576 | instr do_fetch_DIR16, op_nop, do_store_BC ;01 nn nn ;LD BC,nn | |
1577 | instr do_fetch_nop, op_nop, do_store_MBC ;02 ;LD (BC),A | |
1578 | instr do_fetch_BC, op_INC16, do_store_BC ;03 ;INC BC | |
1579 | instr do_fetch_B, op_INC, do_store_B ;04 ;INC B | |
1580 | instr do_fetch_B, op_DEC, do_store_B ;05 ;DEC B | |
1581 | instr do_fetch_DIR8, op_nop, do_store_B ;06 ;LD B,n | |
1582 | instr do_fetch_nop, op_RLCA, do_store_nop ;07 ;RLCA | |
1583 | instr do_fetch_nop, op_INV, do_store_nop ;08 ;EX AF,AF' | |
1584 | instr do_fetch_BC, op_ADDHL, do_store_nop ;09 ;ADD HL,BC | |
1585 | instr do_fetch_MBC, op_nop, do_store_nop ;0A ;LD A,(BC) | |
1586 | instr do_fetch_BC, op_DEC16, do_store_BC ;0B ;DEC BC | |
1587 | instr do_fetch_C, op_INC, do_store_C ;0C ;INC C | |
1588 | instr do_fetch_C, op_DEC, do_store_C ;0D ;DEC C | |
1589 | instr do_fetch_DIR8, op_nop, do_store_C ;0E nn ;LD C,n | |
1590 | instr do_fetch_nop, op_RRCA, do_store_nop ;0F ;RRCA | |
1591 | instr do_fetch_nop, op_INV, do_store_nop ;10 oo ;DJNZ o | |
1592 | instr do_fetch_DIR16, op_nop, do_store_DE ;11 nn nn ;LD DE,nn | |
1593 | instr do_fetch_nop, op_nop, do_store_MDE ;12 ;LD (DE),A | |
1594 | instr do_fetch_DE, op_INC16, do_store_DE ;13 ;INC DE | |
1595 | instr do_fetch_D, op_INC, do_store_D ;14 ;INC D | |
1596 | instr do_fetch_D, op_DEC, do_store_D ;15 ;DEC D | |
1597 | instr do_fetch_DIR8, op_nop, do_store_D ;16 nn ;LD D,n | |
1598 | instr do_fetch_nop, op_RLA, do_store_nop ;17 ;RLA | |
1599 | instr do_fetch_nop, op_INV, do_store_nop ;18 oo ;JR o | |
1600 | instr do_fetch_DE, op_ADDHL, do_store_nop ;19 ;ADD HL,DE | |
1601 | instr do_fetch_MDE, op_nop, do_store_nop ;1A ;LD A,(DE) | |
1602 | instr do_fetch_DE, op_DEC16, do_store_DE ;1B ;DEC DE | |
1603 | instr do_fetch_E, op_INC, do_store_E ;1C ;INC E | |
1604 | instr do_fetch_E, op_DEC, do_store_E ;1D ;DEC E | |
1605 | instr do_fetch_DIR8, op_nop, do_store_E ;1E nn ;LD E,n | |
1606 | instr do_fetch_nop, op_RRA, do_store_nop ;1F ;RRA | |
1607 | instr do_fetch_nop, op_INV, do_store_nop ;20 oo ;JR NZ,o | |
1608 | instr do_fetch_DIR16, op_nop, do_store_HL ;21 nn nn ;LD HL,nn | |
1609 | instr do_fetch_DIR16, op_STHL, do_store_nop ;22 nn nn ;LD (nn),HL | |
1610 | instr do_fetch_HL, op_INC16, do_store_HL ;23 ;INC HL | |
1611 | instr do_fetch_H, op_INC, do_store_H ;24 ;INC H | |
1612 | instr do_fetch_H, op_DEC, do_store_H ;25 ;DEC H | |
1613 | instr do_fetch_DIR8, op_nop, do_store_H ;26 nn ;LD H,n | |
1614 | instr do_fetch_A, op_DA, do_store_A ;27 ;DAA | |
1615 | instr do_fetch_nop, op_INV, do_store_nop ;28 oo ;JR Z,o | |
1616 | instr do_fetch_HL, op_ADDHL, do_store_nop ;29 ;ADD HL,HL | |
1617 | instr do_fetch_DIR16, op_RMEM16, do_store_HL ;2A nn nn ;LD HL,(nn) | |
1618 | instr do_fetch_HL, op_DEC16, do_store_HL ;2B ;DEC HL | |
1619 | instr do_fetch_L, op_INC, do_store_L ;2C ;INC L | |
1620 | instr do_fetch_L, op_DEC, do_store_L ;2D ;DEC L | |
1621 | instr do_fetch_DIR8, op_nop, do_store_L ;2E nn ;LD L,n | |
1622 | instr do_fetch_nop, op_CPL, do_store_nop ;2F ;CPL | |
1623 | instr do_fetch_nop, op_INV, do_store_nop ;30 oo ;JR NC,o | |
1624 | instr do_fetch_DIR16, op_nop, do_store_SP ;31 nn nn ;LD SP,nn | |
1625 | instr do_fetch_DIR16, op_nop, do_store_AM ;32 nn nn ;LD (nn),A | |
1626 | instr do_fetch_SP, op_INC16, do_store_SP ;33 ;INC SP | |
1627 | instr do_fetch_MHL, op_INC, do_store_MHL ;34 ;INC (HL) | |
1628 | instr do_fetch_MHL, op_DEC, do_store_MHL ;35 ;DEC (HL) | |
1629 | instr do_fetch_DIR8, op_nop, do_store_MHL ;36 nn ;LD (HL),n | |
1630 | instr do_fetch_nop, op_SCF, do_store_nop ;37 ;SCF | |
1631 | instr do_fetch_nop, op_INV, do_store_nop ;38 oo ;JR C,o | |
1632 | instr do_fetch_SP, op_ADDHL, do_store_nop ;39 ;ADD HL,SP | |
1633 | instr do_fetch_DIR16, op_RMEM8, do_store_A ;3A nn nn ;LD A,(nn) | |
1634 | instr do_fetch_SP, op_DEC16, do_store_SP ;3B ;DEC SP | |
1635 | instr do_fetch_nop, op_INCA, do_store_nop ;3C ;INC A | |
1636 | instr do_fetch_nop, op_DECA, do_store_nop ;3D ;DEC A | |
1637 | instr do_fetch_DIR8, op_nop, do_store_A ;3E nn ;LD A,n | |
1638 | instr do_fetch_nop, op_CCF, do_store_nop ;3F ;CCF (Complement Carry Flag, gvd) | |
1639 | instr do_fetch_nop, op_nop, do_store_nop ;40 ;LD B,B | |
1640 | instr do_fetch_C, op_nop, do_store_B ;41 ;LD B,C | |
1641 | instr do_fetch_D, op_nop, do_store_B ;42 ;LD B,D | |
1642 | instr do_fetch_E, op_nop, do_store_B ;43 ;LD B,E | |
1643 | instr do_fetch_H, op_nop, do_store_B ;44 ;LD B,H | |
1644 | instr do_fetch_L, op_nop, do_store_B ;45 ;LD B,L | |
1645 | instr do_fetch_MHL, op_nop, do_store_B ;46 ;LD B,(HL) | |
1646 | instr do_fetch_A, op_nop, do_store_B ;47 ;LD B,A | |
1647 | instr do_fetch_B, op_nop, do_store_C ;48 ;LD C,B | |
1648 | instr do_fetch_nop, op_nop, do_store_nop ;49 ;LD C,C | |
1649 | instr do_fetch_D, op_nop, do_store_C ;4A ;LD C,D | |
1650 | instr do_fetch_E, op_nop, do_store_C ;4B ;LD C,E | |
1651 | instr do_fetch_H, op_nop, do_store_C ;4C ;LD C,H | |
1652 | instr do_fetch_L, op_nop, do_store_C ;4D ;LD C,L | |
1653 | instr do_fetch_MHL, op_nop, do_store_C ;4E ;LD C,(HL) | |
1654 | instr do_fetch_A, op_nop, do_store_C ;4F ;LD C,A | |
1655 | instr do_fetch_B, op_nop, do_store_D ;50 ;LD D,B | |
1656 | instr do_fetch_C, op_nop, do_store_D ;51 ;LD D,C | |
1657 | instr do_fetch_nop, op_nop, do_store_nop ;52 ;LD D,D | |
1658 | instr do_fetch_E, op_nop, do_store_D ;53 ;LD D,E | |
1659 | instr do_fetch_H, op_nop, do_store_D ;54 ;LD D,H | |
1660 | instr do_fetch_L, op_nop, do_store_D ;55 ;LD D,L | |
1661 | instr do_fetch_MHL, op_nop, do_store_D ;56 ;LD D,(HL) | |
1662 | instr do_fetch_A, op_nop, do_store_D ;57 ;LD D,A | |
1663 | instr do_fetch_B, op_nop, do_store_E ;58 ;LD E,B | |
1664 | instr do_fetch_C, op_nop, do_store_E ;59 ;LD E,C | |
1665 | instr do_fetch_D, op_nop, do_store_E ;5A ;LD E,D | |
1666 | instr do_fetch_nop, op_nop, do_store_nop ;5B ;LD E,E | |
1667 | instr do_fetch_H, op_nop, do_store_E ;5C ;LD E,H | |
1668 | instr do_fetch_L, op_nop, do_store_E ;5D ;LD E,L | |
1669 | instr do_fetch_MHL, op_nop, do_store_E ;5E ;LD E,(HL) | |
1670 | instr do_fetch_A, op_nop, do_store_E ;5F ;LD E,A | |
1671 | instr do_fetch_B, op_nop, do_store_H ;60 ;LD H,B | |
1672 | instr do_fetch_C, op_nop, do_store_H ;61 ;LD H,C | |
1673 | instr do_fetch_D, op_nop, do_store_H ;62 ;LD H,D | |
1674 | instr do_fetch_E, op_nop, do_store_H ;63 ;LD H,E | |
1675 | instr do_fetch_nop, op_nop, do_store_nop ;64 ;LD H,H | |
1676 | instr do_fetch_L, op_nop, do_store_H ;65 ;LD H,L | |
1677 | instr do_fetch_MHL, op_nop, do_store_H ;66 ;LD H,(HL) | |
1678 | instr do_fetch_A, op_nop, do_store_H ;67 ;LD H,A | |
1679 | instr do_fetch_B, op_nop, do_store_L ;68 ;LD L,B | |
1680 | instr do_fetch_C, op_nop, do_store_L ;69 ;LD L,C | |
1681 | instr do_fetch_D, op_nop, do_store_L ;6A ;LD L,D | |
1682 | instr do_fetch_E, op_nop, do_store_L ;6B ;LD L,E | |
1683 | instr do_fetch_H, op_nop, do_store_L ;6C ;LD L,H | |
1684 | instr do_fetch_nop, op_nop, do_store_nop ;6D ;LD L,L | |
1685 | instr do_fetch_MHL, op_nop, do_store_L ;6E ;LD L,(HL) | |
1686 | instr do_fetch_A, op_nop, do_store_L ;6F ;LD L,A | |
1687 | instr do_fetch_B, op_nop, do_store_MHL ;70 ;LD (HL),B | |
1688 | instr do_fetch_C, op_nop, do_store_MHL ;71 ;LD (HL),C | |
1689 | instr do_fetch_D, op_nop, do_store_MHL ;72 ;LD (HL),D | |
1690 | instr do_fetch_E, op_nop, do_store_MHL ;73 ;LD (HL),E | |
1691 | instr do_fetch_H, op_nop, do_store_MHL ;74 ;LD (HL),H | |
1692 | instr do_fetch_L, op_nop, do_store_MHL ;75 ;LD (HL),L | |
1693 | instr do_fetch_nop, op_INV, do_store_nop ;76 ;HALT | |
1694 | instr do_fetch_A, op_nop, do_store_MHL ;77 ;LD (HL),A | |
1695 | instr do_fetch_B, op_nop, do_store_A ;78 ;LD A,B | |
1696 | instr do_fetch_C, op_nop, do_store_A ;79 ;LD A,C | |
1697 | instr do_fetch_D, op_nop, do_store_A ;7A ;LD A,D | |
1698 | instr do_fetch_E, op_nop, do_store_A ;7B ;LD A,E | |
1699 | instr do_fetch_H, op_nop, do_store_A ;7C ;LD A,H | |
1700 | instr do_fetch_L, op_nop, do_store_A ;7D ;LD A,L | |
1701 | instr do_fetch_MHL, op_nop, do_store_A ;7E ;LD A,(HL) | |
1702 | instr do_fetch_nop, op_nop, do_store_nop ;7F ;LD A,A | |
1703 | instr do_fetch_B, op_ADDA, do_store_nop ;80 ;ADD A,B | |
1704 | instr do_fetch_C, op_ADDA, do_store_nop ;81 ;ADD A,C | |
1705 | instr do_fetch_D, op_ADDA, do_store_nop ;82 ;ADD A,D | |
1706 | instr do_fetch_E, op_ADDA, do_store_nop ;83 ;ADD A,E | |
1707 | instr do_fetch_H, op_ADDA, do_store_nop ;84 ;ADD A,H | |
1708 | instr do_fetch_L, op_ADDA, do_store_nop ;85 ;ADD A,L | |
1709 | instr do_fetch_MHL, op_ADDA, do_store_nop ;86 ;ADD A,(HL) | |
1710 | instr do_fetch_A, op_ADDA, do_store_nop ;87 ;ADD A,A | |
1711 | instr do_fetch_B, op_ADCA, do_store_nop ;88 ;ADC A,B | |
1712 | instr do_fetch_C, op_ADCA, do_store_nop ;89 ;ADC A,C | |
1713 | instr do_fetch_D, op_ADCA, do_store_nop ;8A ;ADC A,D | |
1714 | instr do_fetch_E, op_ADCA, do_store_nop ;8B ;ADC A,E | |
1715 | instr do_fetch_H, op_ADCA, do_store_nop ;8C ;ADC A,H | |
1716 | instr do_fetch_L, op_ADCA, do_store_nop ;8D ;ADC A,L | |
1717 | instr do_fetch_MHL, op_ADCA, do_store_nop ;8E ;ADC A,(HL) | |
1718 | instr do_fetch_A, op_ADCA, do_store_nop ;8F ;ADC A,A | |
1719 | instr do_fetch_B, op_SUBFA, do_store_nop ;90 ;SUB A,B | |
1720 | instr do_fetch_C, op_SUBFA, do_store_nop ;91 ;SUB A,C | |
1721 | instr do_fetch_D, op_SUBFA, do_store_nop ;92 ;SUB A,D | |
1722 | instr do_fetch_E, op_SUBFA, do_store_nop ;93 ;SUB A,E | |
1723 | instr do_fetch_H, op_SUBFA, do_store_nop ;94 ;SUB A,H | |
1724 | instr do_fetch_L, op_SUBFA, do_store_nop ;95 ;SUB A,L | |
1725 | instr do_fetch_MHL, op_SUBFA, do_store_nop ;96 ;SUB A,(HL) | |
1726 | instr do_fetch_A, op_SUBFA, do_store_nop ;97 ;SUB A,A | |
1727 | instr do_fetch_B, op_SBCFA, do_store_nop ;98 ;SBC A,B | |
1728 | instr do_fetch_C, op_SBCFA, do_store_nop ;99 ;SBC A,C | |
1729 | instr do_fetch_D, op_SBCFA, do_store_nop ;9A ;SBC A,D | |
1730 | instr do_fetch_E, op_SBCFA, do_store_nop ;9B ;SBC A,E | |
1731 | instr do_fetch_H, op_SBCFA, do_store_nop ;9C ;SBC A,H | |
1732 | instr do_fetch_L, op_SBCFA, do_store_nop ;9D ;SBC A,L | |
1733 | instr do_fetch_MHL, op_SBCFA, do_store_nop ;9E ;SBC A,(HL) | |
1734 | instr do_fetch_A, op_SBCFA, do_store_nop ;9F ;SBC A,A | |
1735 | instr do_fetch_B, op_ANDA, do_store_nop ;A0 ;AND A,B | |
1736 | instr do_fetch_C, op_ANDA, do_store_nop ;A1 ;AND A,C | |
1737 | instr do_fetch_D, op_ANDA, do_store_nop ;A2 ;AND A,D | |
1738 | instr do_fetch_E, op_ANDA, do_store_nop ;A3 ;AND A,E | |
1739 | instr do_fetch_H, op_ANDA, do_store_nop ;A4 ;AND A,H | |
1740 | instr do_fetch_L, op_ANDA, do_store_nop ;A5 ;AND A,L | |
1741 | instr do_fetch_MHL, op_ANDA, do_store_nop ;A6 ;AND A,(HL) | |
1742 | instr do_fetch_A, op_ANDA, do_store_nop ;A7 ;AND A,A | |
1743 | instr do_fetch_B, op_XORA, do_store_nop ;A8 ;XOR A,B | |
1744 | instr do_fetch_C, op_XORA, do_store_nop ;A9 ;XOR A,C | |
1745 | instr do_fetch_D, op_XORA, do_store_nop ;AA ;XOR A,D | |
1746 | instr do_fetch_E, op_XORA, do_store_nop ;AB ;XOR A,E | |
1747 | instr do_fetch_H, op_XORA, do_store_nop ;AC ;XOR A,H | |
1748 | instr do_fetch_L, op_XORA, do_store_nop ;AD ;XOR A,L | |
1749 | instr do_fetch_MHL, op_XORA, do_store_nop ;AE ;XOR A,(HL) | |
1750 | instr do_fetch_A, op_XORA, do_store_nop ;AF ;XOR A,A | |
1751 | instr do_fetch_B, op_ORA, do_store_nop ;B0 ;OR A,B | |
1752 | instr do_fetch_C, op_ORA, do_store_nop ;B1 ;OR A,C | |
1753 | instr do_fetch_D, op_ORA, do_store_nop ;B2 ;OR A,D | |
1754 | instr do_fetch_E, op_ORA, do_store_nop ;B3 ;OR A,E | |
1755 | instr do_fetch_H, op_ORA, do_store_nop ;B4 ;OR A,H | |
1756 | instr do_fetch_L, op_ORA, do_store_nop ;B5 ;OR A,L | |
1757 | instr do_fetch_MHL, op_ORA, do_store_nop ;B6 ;OR A,(HL) | |
1758 | instr do_fetch_A, op_ORA, do_store_nop ;B7 ;OR A,A | |
1759 | instr do_fetch_B, op_CPFA, do_store_nop ;B8 ;CP A,B | |
1760 | instr do_fetch_C, op_CPFA, do_store_nop ;B9 ;CP A,C | |
1761 | instr do_fetch_D, op_CPFA, do_store_nop ;BA ;CP A,D | |
1762 | instr do_fetch_E, op_CPFA, do_store_nop ;BB ;CP A,E | |
1763 | instr do_fetch_H, op_CPFA, do_store_nop ;BC ;CP A,H | |
1764 | instr do_fetch_L, op_CPFA, do_store_nop ;BD ;CP A,L | |
1765 | instr do_fetch_MHL, op_CPFA, do_store_nop ;BE ;CP A,(HL) | |
1766 | instr do_fetch_A, op_CPFA, do_store_nop ;BF ;CP A,A | |
1767 | instr do_fetch_nop, op_IFNZ, do_store_RET ;C0 ;RET NZ | |
1768 | instr do_fetch_nop, op_POP16, do_store_BC ;C1 ;POP BC | |
1769 | instr do_fetch_DIR16, op_IFNZ, do_store_PC ;C2 nn nn ;JP NZ,nn | |
1770 | instr do_fetch_DIR16, op_nop, do_store_PC ;C3 nn nn ;JP nn | |
1771 | instr do_fetch_DIR16, op_IFNZ, do_store_CALL ;C4 nn nn ;CALL NZ,nn | |
1772 | instr do_fetch_BC, op_PUSH16, do_store_nop ;C5 ;PUSH BC | |
1773 | instr do_fetch_DIR8, op_ADDA, do_store_nop ;C6 nn ;ADD A,n | |
1774 | instr do_fetch_RST, op_nop, do_store_CALL ;C7 ;RST 0 | |
1775 | instr do_fetch_nop, op_IFZ, do_store_RET ;C8 ;RET Z | |
1776 | instr do_fetch_nop, op_nop, do_store_RET ;C9 ;RET | |
1777 | instr do_fetch_DIR16, op_IFZ, do_store_PC ;CA nn nn ;JP Z,nn | |
1778 | instr do_fetch_nop, op_INV, do_store_nop ;CB ;(Z80 specific) | |
1779 | instr do_fetch_DIR16, op_IFZ, do_store_CALL ;CC nn nn ;CALL Z,nn | |
1780 | instr do_fetch_DIR16, op_nop, do_store_CALL ;CD nn nn ;CALL nn | |
1781 | instr do_fetch_DIR8, op_ADCA, do_store_nop ;CE nn ;ADC A,n | |
1782 | instr do_fetch_RST, op_nop, do_store_CALL ;CF ;RST 8H | |
1783 | instr do_fetch_nop, op_IFNC, do_store_RET ;D0 ;RET NC | |
1784 | instr do_fetch_nop, op_POP16, do_store_DE ;D1 ;POP DE | |
1785 | instr do_fetch_DIR16, op_IFNC, do_store_PC ;D2 nn nn ;JP NC,nn | |
1786 | instr do_fetch_DIR8, op_OUTA, do_store_nop ;D3 nn ;OUT (n),A | |
1787 | instr do_fetch_DIR16, op_IFNC, do_store_CALL ;D4 nn nn ;CALL NC,nn | |
1788 | instr do_fetch_DE, op_PUSH16, do_store_nop ;D5 ;PUSH DE | |
1789 | instr do_fetch_DIR8, op_SUBFA, do_store_nop ;D6 nn ;SUB n | |
1790 | instr do_fetch_RST, op_nop, do_store_CALL ;D7 ;RST 10H | |
1791 | instr do_fetch_nop, op_IFC, do_store_RET ;D8 ;RET C | |
1792 | instr do_fetch_nop, op_nop, do_store_nop ;D9 ;EXX | |
1793 | instr do_fetch_DIR16, op_IFC, do_store_PC ;DA nn nn ;JP C,nn | |
1794 | instr do_fetch_DIR8, op_INA, do_store_nop ;DB nn ;IN A,(n) | |
1795 | instr do_fetch_DIR16, op_IFC, do_store_CALL ;DC nn nn ;CALL C,nn | |
1796 | instr do_fetch_nop, op_INV, do_store_nop ;DD ;(Z80 specific) | |
1797 | instr do_fetch_DIR8, op_SBCFA, do_store_nop ;DE nn ;SBC A,n | |
1798 | instr do_fetch_RST, op_nop, do_store_CALL ;DF ;RST 18H | |
1799 | instr do_fetch_nop, op_IFPO, do_store_RET ;E0 ;RET PO | |
1800 | instr do_fetch_nop, op_POP16, do_store_HL ;E1 ;POP HL | |
1801 | instr do_fetch_DIR16, op_IFPO, do_store_PC ;E2 nn nn ;JP PO,nn | |
1802 | instr do_fetch_MSP, op_EXHL, do_store_MSP ;E3 ;EX (SP),HL | |
1803 | instr do_fetch_DIR16, op_IFPO, do_store_CALL ;E4 nn nn ;CALL PO,nn | |
1804 | instr do_fetch_HL, op_PUSH16, do_store_nop ;E5 ;PUSH HL | |
1805 | instr do_fetch_DIR8, op_ANDA, do_store_nop ;E6 nn ;AND n | |
1806 | instr do_fetch_RST, op_nop, do_store_CALL ;E7 ;RST 20H | |
1807 | instr do_fetch_nop, op_IFPE, do_store_RET ;E8 ;RET PE | |
1808 | instr do_fetch_HL, op_nop, do_store_PC ;E9 ;JP HL | |
1809 | instr do_fetch_DIR16, op_IFPE, do_store_PC ;EA nn nn ;JP PE,nn | |
1810 | instr do_fetch_DE, op_EXHL, do_store_DE ;EB ;EX DE,HL | |
1811 | instr do_fetch_DIR16, op_IFPE, do_store_CALL ;EC nn nn ;CALL PE,nn | |
1812 | instr do_fetch_nop, op_INV, do_store_nop ;ED ;(Z80 specific) | |
1813 | instr do_fetch_DIR8, op_XORA, do_store_nop ;EE nn ;XOR n | |
1814 | instr do_fetch_RST, op_nop, do_store_CALL ;EF ;RST 28H | |
1815 | instr do_fetch_nop, op_IFP, do_store_RET ;F0 ;RET P | |
1816 | instr do_fetch_nop, op_POP16, do_store_AF ;F1 ;POP AF | |
1817 | instr do_fetch_DIR16, op_IFP, do_store_PC ;F2 nn nn ;JP P,nn | |
1818 | instr do_fetch_nop, op_DI, do_store_nop ;F3 ;DI | |
1819 | instr do_fetch_DIR16, op_IFP, do_store_CALL ;F4 nn nn ;CALL P,nn | |
1820 | instr do_fetch_AF, op_PUSH16, do_store_nop ;F5 ;PUSH AF | |
1821 | instr do_fetch_DIR8, op_ORA, do_store_nop ;F6 nn ;OR n | |
1822 | instr do_fetch_RST, op_nop, do_store_CALL ;F7 ;RST 30H | |
1823 | instr do_fetch_nop, op_IFM, do_store_RET ;F8 ;RET M | |
1824 | instr do_fetch_HL, op_nop, do_store_SP ;F9 ;LD SP,HL | |
1825 | instr do_fetch_DIR16, op_IFM, do_store_PC ;FA nn nn ;JP M,nn | |
1826 | instr do_fetch_nop, op_EI, do_store_nop ;FB ;EI | |
1827 | instr do_fetch_DIR16, op_IFM, do_store_CALL ;FC nn nn ;CALL M,nn | |
1828 | instr do_fetch_nop, op_INV, do_store_nop ;FD ;(Z80 specific) | |
1829 | instr do_fetch_DIR8, op_CPFA, do_store_nop ;FE nn ;CP n | |
1830 | instr do_fetch_RST, op_nop, do_store_CALL ;FF ;RST 38H | |
1831 | ||
1832 | ||
1833 | ;---------------------------------------------------------------- | |
1834 | ; Lookup table, stolen from z80ex, Z80 emulation library. | |
1835 | ; http://z80ex.sourceforge.net/ | |
1836 | ||
1837 | ; The S, Z, 5 and 3 bits and the parity of the lookup value | |
1838 | ||
1839 | ; .org (PC+255) & 0xff00 | |
1840 | .org opcjmp + 256 | |
1841 | sz53p_tab: | |
1842 | .db 0x44,0x00,0x00,0x04,0x00,0x04,0x04,0x00 | |
1843 | .db 0x08,0x0c,0x0c,0x08,0x0c,0x08,0x08,0x0c | |
1844 | .db 0x00,0x04,0x04,0x00,0x04,0x00,0x00,0x04 | |
1845 | .db 0x0c,0x08,0x08,0x0c,0x08,0x0c,0x0c,0x08 | |
1846 | .db 0x20,0x24,0x24,0x20,0x24,0x20,0x20,0x24 | |
1847 | .db 0x2c,0x28,0x28,0x2c,0x28,0x2c,0x2c,0x28 | |
1848 | .db 0x24,0x20,0x20,0x24,0x20,0x24,0x24,0x20 | |
1849 | .db 0x28,0x2c,0x2c,0x28,0x2c,0x28,0x28,0x2c | |
1850 | .db 0x00,0x04,0x04,0x00,0x04,0x00,0x00,0x04 | |
1851 | .db 0x0c,0x08,0x08,0x0c,0x08,0x0c,0x0c,0x08 | |
1852 | .db 0x04,0x00,0x00,0x04,0x00,0x04,0x04,0x00 | |
1853 | .db 0x08,0x0c,0x0c,0x08,0x0c,0x08,0x08,0x0c | |
1854 | .db 0x24,0x20,0x20,0x24,0x20,0x24,0x24,0x20 | |
1855 | .db 0x28,0x2c,0x2c,0x28,0x2c,0x28,0x28,0x2c | |
1856 | .db 0x20,0x24,0x24,0x20,0x24,0x20,0x20,0x24 | |
1857 | .db 0x2c,0x28,0x28,0x2c,0x28,0x2c,0x2c,0x28 | |
1858 | .db 0x80,0x84,0x84,0x80,0x84,0x80,0x80,0x84 | |
1859 | .db 0x8c,0x88,0x88,0x8c,0x88,0x8c,0x8c,0x88 | |
1860 | .db 0x84,0x80,0x80,0x84,0x80,0x84,0x84,0x80 | |
1861 | .db 0x88,0x8c,0x8c,0x88,0x8c,0x88,0x88,0x8c | |
1862 | .db 0xa4,0xa0,0xa0,0xa4,0xa0,0xa4,0xa4,0xa0 | |
1863 | .db 0xa8,0xac,0xac,0xa8,0xac,0xa8,0xa8,0xac | |
1864 | .db 0xa0,0xa4,0xa4,0xa0,0xa4,0xa0,0xa0,0xa4 | |
1865 | .db 0xac,0xa8,0xa8,0xac,0xa8,0xac,0xac,0xa8 | |
1866 | .db 0x84,0x80,0x80,0x84,0x80,0x84,0x84,0x80 | |
1867 | .db 0x88,0x8c,0x8c,0x88,0x8c,0x88,0x88,0x8c | |
1868 | .db 0x80,0x84,0x84,0x80,0x84,0x80,0x80,0x84 | |
1869 | .db 0x8c,0x88,0x88,0x8c,0x88,0x8c,0x8c,0x88 | |
1870 | .db 0xa0,0xa4,0xa4,0xa0,0xa4,0xa0,0xa0,0xa4 | |
1871 | .db 0xac,0xa8,0xa8,0xac,0xa8,0xac,0xac,0xa8 | |
1872 | .db 0xa4,0xa0,0xa0,0xa4,0xa0,0xa4,0xa4,0xa0 | |
1873 | .db 0xa8,0xac,0xac,0xa8,0xac,0xa8,0xa8,0xac | |
1874 | ||
1875 | ; vim:set ts=8 noet nowrap | |
1876 |