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r33826 Thursday 11th December, 2014 at 14:09:45 UTC by David Haywood
arcompact (nw)
[src/emu/cpu/arcompact]arcompactdasm_ops.c

trunk/src/emu/cpu/arcompact/arcompactdasm_ops.c
r242337r242338
208208int arcompact_handle01_01_01_0e_dasm(DASM_OPS_32)  { GET_01_01_01_BRANCH_ADDR;  print("BBIT0 (b & 1<<u6) == 0 (dst %08x) (%08x)", pc + (address * 2) + 4, op); return 4; }
209209int arcompact_handle01_01_01_0f_dasm(DASM_OPS_32)  { GET_01_01_01_BRANCH_ADDR;  print("BBIT1 (b & 1<<u6) != 0 (dst %08x) (%08x)", pc + (address * 2) + 4, op); return 4; }
210210
211#if 0
212//#define EXPLICIT_EXTENSIONS
211213
214static const char *datasize[0x4] =
215{
216#ifdef EXPLICIT_EXTENSIONS
217   /* 00 */ ".L", // Dword (default) (can use no extension, using .L to be explicit)
218#else
219   /* 00 */ " ",// Dword (default)
220#endif
221   /* 01 */ ".B", // Byte
222   /* 02 */ ".W", // Word
223   /* 03 */ ".<illegal data size>"
224};
225
226static const char *dataextend[0x2] =
227{
228#ifdef EXPLICIT_EXTENSIONS
229   /* 00 */ ".ZX", // Zero Extend (can use no extension, using .ZX to be explicit)
230else
231   /* 00 */ " ", // Zero Extend
232#endif
233   /* 01 */ ".X" // Sign Extend
234};
235
236static const char *addressmode[0x4] =
237{
238#ifdef EXPLICIT_EXTENSIONS
239   /* 00 */ ".AN", // No Writeback (can use no extension, using .AN to be explicit)
240#else
241   /* 00 */ " ", // No Writeback
242#endif
243   /* 01 */ ".AW", // Writeback pre memory access
244   /* 02 */ ".AB", // Writeback post memory access
245   /* 03 */ ".AS"  // scaled
246};
247
248static const char *cachebit[0x2] =
249{
250#ifdef EXPLICIT_EXTENSIONS
251   /* 00 */ ".EN", // Data Cache Enabled (can use no extension, using .EN to be explicit)
252#else
253   /* 00 */ " ", // Data Cache Enabled
254#endif
255   /* 01 */ ".DI" // Direct to Memory (Cache Bypass)
256};
257
258static const char *regnames[0x40] =
259{
260   /* 00 */ "r0",
261   /* 01 */ "r1",
262   /* 02 */ "r2",
263   /* 03 */ "r3",
264   /* 04 */ "r4",
265   /* 05 */ "r5",
266   /* 06 */ "r6",
267   /* 07 */ "r7",
268   /* 08 */ "r8",
269   /* 09 */ "r9",
270   /* 0a */ "r10",
271   /* 0b */ "r11",
272   /* 0c */ "r12",
273   /* 0d */ "r13",
274   /* 0e */ "r14",
275   /* 0f */ "r15",
276
277   /* 10 */ "r16",
278   /* 11 */ "r17",
279   /* 12 */ "r18",
280   /* 13 */ "r19",
281   /* 14 */ "r20",
282   /* 15 */ "r21",
283   /* 16 */ "r22",
284   /* 17 */ "r23",
285   /* 18 */ "r24",
286   /* 19 */ "r25",
287   /* 1a */ "r26(GP)",
288   /* 1b */ "r27(FP)",
289   /* 1c */ "r28(SP)",
290   /* 1d */ "r29(ILINK1)",
291   /* 1e */ "r30(ILINK2)",
292   /* 1f */ "r31(BLINK)",
293
294   /* 20 */ "r32(ext)",
295   /* 21 */ "r33(ext)",
296   /* 22 */ "r34(ext)",
297   /* 23 */ "r35(ext)",
298   /* 24 */ "r36(ext)",
299   /* 25 */ "r37(ext)",
300   /* 26 */ "r38(ext)",
301   /* 27 */ "r39(ext)",
302   /* 28 */ "r40(ext)",
303   /* 29 */ "r41(ext)",
304   /* 2a */ "r42(ext)",
305   /* 2b */ "r43(ext)",
306   /* 2c */ "r44(ext)",
307   /* 2d */ "r45(ext)",
308   /* 2e */ "r46(ext)",
309   /* 2f */ "r47(ext)",
310
311   /* 30 */ "r48(ext)",
312   /* 31 */ "r49(ext)",
313   /* 32 */ "r50(ext)",
314   /* 33 */ "r51(ext)",
315   /* 34 */ "r52(ext)",
316   /* 35 */ "r53(ext)",
317   /* 36 */ "r54(ext)",
318   /* 37 */ "r55(ext)",
319   /* 38 */ "r56(ext)",
320   /* 39 */ "r57(ext)", // MLO  (result registers for optional multply functions)
321   /* 3a */ "r58(ext)", // MMID
322   /* 3b */ "r59(ext)", // MHI
323   /* 3c */ "r60(LP_COUNT)",
324   /* 3d */ "r61(reserved)",
325   /* 3e */ "r62(LIMM)", // use Long Immediate Data instead of register
326   /* 3f */ "r63(PCL)"
327};
328#endif
329
212330int arcompact_handle02_dasm(DASM_OPS_32)
213331{
214332   // bitpos
215   // 11111 111 11111111 0 000 0 00 00 0 000000
216   // fedcb a98 76543210 f edc b a9 87 6 543210
333   // 1111 1111 1111 1111 0000 0000 0000 0000
334   // fedc ba98 7654 3210 fedc ba98 7654 3210
217335   // fields
218   // 00010 bbb ssssssss S BBB D aa ZZ X AAAAAA
219#if 0   
220   int A = (op & 0x0000003f >> 0);  op &= ~0x0000003f;
221   int X = (op & 0x00000040 >> 6);  op &= ~0x00000040;
222   int Z = (op & 0x00000180 >> 7);  op &= ~0x00000180;
223   int a = (op & 0x00000600 >> 9);  op &= ~0x00000600;
224   int D = (op & 0x00000800 >> 11); op &= ~0x00000800;
225   int B = (op & 0x00007000 >> 12); op &= ~0x00007000;
226   int S = (op & 0x00008000 >> 15); op &= ~0x00008000;
227   int s = (op & 0x00ff0000 >> 16); op &= ~0x00ff0000;
228   int b = (op & 0x07000000 >> 24); op &= ~0x07000000;
336   // 0001 0bbb ssss ssss SBBB DaaZ ZXAA AAAA
337
338#if 0
339   int A = (op & 0x0000003f >> 0);  //op &= ~0x0000003f;
340   int X = (op & 0x00000040 >> 6);  //op &= ~0x00000040;
341   int Z = (op & 0x00000180 >> 7);  //op &= ~0x00000180;
342   int a = (op & 0x00000600 >> 9);  //op &= ~0x00000600;
343   int D = (op & 0x00000800 >> 11);// op &= ~0x00000800;
344   int B = (op & 0x00007000 >> 12);// op &= ~0x00007000;
345   int S = (op & 0x00008000 >> 15);// op &= ~0x00008000;
346   int s = (op & 0x00ff0000 >> 16);// op &= ~0x00ff0000;
347   int b = (op & 0x07000000 >> 24);// op &= ~0x07000000;
348
349   int breg = b | (B << 3);
350   int sdat = s | (S << 8); // todo - signed
229351#endif
230352
231   print("LD r+o (%08x)", op );
353
354   output  += sprintf( output, "LD");
355//   output  += sprintf( output, "%s", datasize[Z]);
356//   output  += sprintf( output, "%s", dataextend[X]);
357//   output  += sprintf( output, "%s", addressmode[a]);
358//   output  += sprintf( output, "%s", cachebit[D]);
359//   output  += sprintf( output, " ");
360//   output  += sprintf( output, "%s, ", regnames[A]);
361//   output  += sprintf( output, "[");
362//   output  += sprintf( output, "%s(%d %d), ", regnames[breg], B, b);
363//   output  += sprintf( output, "%d", sdat);
364//   output  += sprintf( output, "]");
365
232366   return 4;
233367}
234368

https://github.com/mamedev/mame/commit/f44a4708c389e17106302023e0159f3f57d5b7a2

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