/* TIc80 Simulator. Copyright (C) 1997, 1998 Free Software Foundation, Inc. Contributed by Cygnus Support. This file is part of GDB, the GNU debugger. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "sim-main.h" #ifdef HAVE_STRING_H #include <string.h> #else #ifdef HAVE_STRINGS_H #include <strings.h> #endif #endif tic80_control_regs tic80_index2cr (int index) { switch (index) { case 0x0000: return EPC_CR; case 0x0001: return EIP_CR; case 0x0002: return CONFIG_CR; case 0x0004: return INTPEN_CR; case 0x0006: return IE_CR; case 0x0008: return FPST_CR; case 0x000A: return PPERROR_CR; case 0x000D: return PKTREQ_CR; case 0x000E: return TCOUNT_CR; case 0x000F: return TSCALE_CR; case 0x0010: return FLTOP_CR; case 0x0011: return FLTADR_CR; case 0x0012: return FLTTAG_CR; case 0x0013: return FLTDLT_CR; case 0x0014: return FLTDTH_CR; case 0x0015: return FLT005_CR; case 0x0016: return FLT006_CR; case 0x0017: return FLT007_CR; case 0x0018: return FLT008_CR; case 0x0019: return FLT009_CR; case 0x001a: return FLT010_CR; case 0x001b: return FLT011_CR; case 0x001c: return FLT012_CR; case 0x001d: return FLT013_CR; case 0x001e: return FLT014_CR; case 0x001f: return FLT015_CR; case 0x0020: return SYSSTK_CR; case 0x0021: return SYSTMP_CR; case 0x0030: return MPC_CR; case 0x0031: return MIP_CR; case 0x0033: return ECOMCNTL_CR; case 0x0034: return ANASTAT_CR; case 0x0039: return BRK1_CR; case 0x003A: return BRK2_CR; case 0x0200: return ITAG0_CR; case 0x0201: return ITAG1_CR; case 0x0202: return ITAG2_CR; case 0x0203: return ITAG3_CR; case 0x0204: return ITAG4_CR; case 0x0205: return ITAG5_CR; case 0x0206: return ITAG6_CR; case 0x0207: return ITAG7_CR; case 0x0208: return ITAG8_CR; case 0x0209: return ITAG9_CR; case 0x020a: return ITAG10_CR; case 0x020b: return ITAG11_CR; case 0x020c: return ITAG12_CR; case 0x020d: return ITAG13_CR; case 0x020e: return ITAG14_CR; case 0x020f: return ITAG15_CR; case 0x0300: return ILRU_CR; case 0x0400: return DTAG0_CR; case 0x0401: return DTAG1_CR; case 0x0402: return DTAG2_CR; case 0x0403: return DTAG3_CR; case 0x0404: return DTAG4_CR; case 0x0405: return DTAG5_CR; case 0x0406: return DTAG6_CR; case 0x0407: return DTAG7_CR; case 0x0408: return DTAG8_CR; case 0x0409: return DTAG9_CR; case 0x040a: return DTAG10_CR; case 0x040b: return DTAG11_CR; case 0x040c: return DTAG12_CR; case 0x040d: return DTAG13_CR; case 0x040e: return DTAG14_CR; case 0x040f: return DTAG15_CR; case 0x0500: return DLRU_CR; case 0x4000: return IN0P_CR; case 0x4001: return IN1P_CR; case 0x4002: return OUTP_CR; default: return SCRATCH_CR; } } #if defined(WITH_TRACE) /* Tracing support routines */ static char tic80_trace_buffer[1024]; static int tic80_size_name; #define SIZE_HEX 8 #define SIZE_DECIMAL 11 /* Initialize tracing by calculating the maximum name size */ static void tic80_init_trace (void) { int i; int len, max_len = 0; for (i = 0; i < (int)nr_itable_entries; i++) { len = strlen (itable[i].name); if (len > max_len) max_len = len; } tic80_size_name = max_len + sizeof(":m") - 1 + sizeof (":s") - 1; } /* Given an integer which is the result of a comparison, return a string giving which bits are set. */ static char * tic80_trace_cmp_internal (unsigned32 flag) { struct cmp_bits { unsigned32 bit; char *string; }; static char buffer[32*8]; static struct cmp_bits bits[] = { { BIT32(29), "hs" }, { BIT32(28), "lo" }, { BIT32(27), "ls" }, { BIT32(26), "hi" }, { BIT32(25), "ge" }, { BIT32(24), "lt" }, { BIT32(23), "le" }, { BIT32(22), "gt" }, { BIT32(21), "ne" }, { BIT32(20), "eq" }, { BIT32(19), "hs.h" }, { BIT32(18), "lo.h" }, { BIT32(17), "ls.h" }, { BIT32(16), "hi.h" }, { BIT32(15), "ge.h" }, { BIT32(14), "lt.h" }, { BIT32(13), "le.h" }, { BIT32(12), "gt.h" }, { BIT32(11), "ne.h" }, { BIT32(10), "eq.h" }, { BIT32( 9), "hs.b" }, { BIT32( 8), "lo.b" }, { BIT32( 7), "ls.b" }, { BIT32( 6), "hi.b" }, { BIT32( 5), "ge.b" }, { BIT32( 4), "lt.b" }, { BIT32( 3), "le.b" }, { BIT32( 2), "gt.b" }, { BIT32( 1), "ne.b" }, { BIT32( 0), "eq.b" }, { 0, (char *)0 }, }; int i; char *p = buffer; for (i = 0; bits[i].bit != 0; i++) { if ((flag & bits[i].bit) != 0) { if (p != buffer) *p++ = ' '; strcpy (p, bits[i].string); p += strlen (p); } } *p = '\0'; return buffer; } /* Trace the result of an ALU operation with 2 integer inputs and an integer output */ char * tic80_trace_alu3 (int indx, unsigned32 result, unsigned32 input1, unsigned32 input2) { if (!tic80_size_name) tic80_init_trace (); sprintf (tic80_trace_buffer, "%-*s 0x%.*lx/%*ld 0x%.*lx/%*ld => 0x%.*lx/%*ld", tic80_size_name, itable[indx].name, SIZE_HEX, input1, SIZE_DECIMAL, (long)(signed32)input1, SIZE_HEX, input2, SIZE_DECIMAL, (long)(signed32)input2, SIZE_HEX, result, SIZE_DECIMAL, (long)(signed32)result); return tic80_trace_buffer; } /* Trace the result of an ALU operation with 2 integer inputs and an integer output that sets the bits from a compare instruction. */ char * tic80_trace_cmp (int indx, unsigned32 result, unsigned32 input1, unsigned32 input2) { if (!tic80_size_name) tic80_init_trace (); sprintf (tic80_trace_buffer, "%-*s 0x%.*lx/%*ld 0x%.*lx/%*ld => 0x%.*lx %s", tic80_size_name, itable[indx].name, SIZE_HEX, input1, SIZE_DECIMAL, (long)(signed32)input1, SIZE_HEX, input2, SIZE_DECIMAL, (long)(signed32)input2, SIZE_HEX, result, tic80_trace_cmp_internal (result)); return tic80_trace_buffer; } /* Trace the result of an ALU operation with 1 integer input and an integer output */ char * tic80_trace_alu2 (int indx, unsigned32 result, unsigned32 input) { if (!tic80_size_name) tic80_init_trace (); sprintf (tic80_trace_buffer, "%-*s 0x%.*lx/%*ld %*s => 0x%.*lx/%*ld", tic80_size_name, itable[indx].name, SIZE_HEX, input, SIZE_DECIMAL, (long)(signed32)input, SIZE_HEX + SIZE_DECIMAL + 3, "", SIZE_HEX, result, SIZE_DECIMAL, (long)(signed32)result); return tic80_trace_buffer; } /* Trace the result of a shift instruction */ char * tic80_trace_shift (int indx, unsigned32 result, unsigned32 input, int i, int n, int merge, int endmask, int rotate) { const char *merge_name; char name[40]; char *p; if (!tic80_size_name) tic80_init_trace (); switch (merge) { default: merge_name = ".??"; break; case 0: merge_name = ".dz"; break; case 1: merge_name = ".dm"; break; case 2: merge_name = ".ds"; break; case 3: merge_name = ".ez"; break; case 4: merge_name = ".em"; break; case 5: merge_name = ".es"; break; case 6: merge_name = ".iz"; break; case 7: merge_name = ".im"; break; } /* Don't use itable[indx].name, which is just sl {r,i}. Instead reconstruct the name, using the i and n fields. */ p = strchr (itable[indx].name, ' '); sprintf (name, "s%s%s%s%s", (n) ? "r" : "l", (i) ? "i" : "", merge_name, (p) ? p : ""); sprintf (tic80_trace_buffer, "%-*s 0x%.*lx/%*ld %*s%2d,%2d => 0x%.*lx/%*ld", tic80_size_name, name, SIZE_HEX, input, SIZE_DECIMAL, (long)(signed32)input, SIZE_HEX + SIZE_DECIMAL - 2, "", rotate, endmask, SIZE_HEX, result, SIZE_DECIMAL, (long)(signed32)result); return tic80_trace_buffer; } /* Trace the result of an FPU operation with 2 floating point inputs and a floating point output */ void tic80_trace_fpu3 (SIM_DESC sd, sim_cpu *cpu, sim_cia cia, int indx, sim_fpu *result, sim_fpu *input1, sim_fpu *input2) { if (!tic80_size_name) tic80_init_trace (); trace_one_insn (sd, cpu, cia.ip, 1, itable[indx].file, itable[indx].line_nr, "fpu", "%-*s %*g %*g => %*g", tic80_size_name, itable[indx].name, SIZE_HEX + SIZE_DECIMAL + 3, sim_fpu_2d (input1), SIZE_HEX + SIZE_DECIMAL + 3, sim_fpu_2d (input2), SIZE_HEX + SIZE_DECIMAL + 3, sim_fpu_2d (result)); } /* Trace the result of an FPU operation with 1 floating point input and a floating point output */ void tic80_trace_fpu2 (SIM_DESC sd, sim_cpu *cpu, sim_cia cia, int indx, sim_fpu *result, sim_fpu *input) { if (!tic80_size_name) tic80_init_trace (); trace_one_insn (sd, cpu, cia.ip, 1, itable[indx].file, itable[indx].line_nr, "fpu", "%-*s %*g %-*s => %*g", tic80_size_name, itable[indx].name, SIZE_HEX + SIZE_DECIMAL + 3, sim_fpu_2d (input), SIZE_HEX + SIZE_DECIMAL + 3, "", SIZE_HEX + SIZE_DECIMAL, sim_fpu_2d (result)); } /* Trace the result of an FPU operation with 1 floating point input and a floating point output */ void tic80_trace_fpu1 (SIM_DESC sd, sim_cpu *cpu, sim_cia cia, int indx, sim_fpu *result) { if (!tic80_size_name) tic80_init_trace (); trace_one_insn (sd, cpu, cia.ip, 1, itable[indx].file, itable[indx].line_nr, "fpu", "%-*s %-*s %-*s => %*g", tic80_size_name, itable[indx].name, SIZE_HEX + SIZE_DECIMAL + 3, "", SIZE_HEX + SIZE_DECIMAL + 3, "", SIZE_HEX + SIZE_DECIMAL, sim_fpu_2d (result)); } /* Trace the result of an FPU operation with 2 floating point inputs and an integer output */ void tic80_trace_fpu2i (SIM_DESC sd, sim_cpu *cpu, sim_cia cia, int indx, unsigned32 result, sim_fpu *input1, sim_fpu *input2) { if (!tic80_size_name) tic80_init_trace (); trace_one_insn (sd, cpu, cia.ip, 1, itable[indx].file, itable[indx].line_nr, "fpu", "%-*s %*g %*g => 0x%.*lx %-*ld", tic80_size_name, itable[indx].name, SIZE_HEX + SIZE_DECIMAL + 3, sim_fpu_2d (input1), SIZE_HEX + SIZE_DECIMAL + 3, sim_fpu_2d (input2), SIZE_HEX, result, SIZE_DECIMAL, (long)(signed32)result); } /* Trace the result of an FPU operation with 2 floating point inputs and an integer output that is the result of a comparison. */ void tic80_trace_fpu2cmp (SIM_DESC sd, sim_cpu *cpu, sim_cia cia, int indx, unsigned32 result, sim_fpu *input1, sim_fpu *input2) { if (!tic80_size_name) tic80_init_trace (); trace_one_insn (sd, cpu, cia.ip, 1, itable[indx].file, itable[indx].line_nr, "fpu", "%-*s %*g %*g => 0x%.*lx %s", tic80_size_name, itable[indx].name, SIZE_HEX + SIZE_DECIMAL + 3, sim_fpu_2d (input1), SIZE_HEX + SIZE_DECIMAL + 3, sim_fpu_2d (input2), SIZE_HEX, result, tic80_trace_cmp_internal (result)); } /* Trace the result of a NOP operation */ char * tic80_trace_nop (int indx) { if (!tic80_size_name) tic80_init_trace (); sprintf (tic80_trace_buffer, "%s", itable[indx].name); return tic80_trace_buffer; } /* Trace the result of a data sink with one input */ char * tic80_trace_sink1 (int indx, unsigned32 input) { if (!tic80_size_name) tic80_init_trace (); sprintf (tic80_trace_buffer, "%-*s 0x%.*lx/%*ld", tic80_size_name, itable[indx].name, SIZE_HEX, input, SIZE_DECIMAL, (long)(signed32)input); return tic80_trace_buffer; } /* Trace the result of a data sink with two inputs */ char * tic80_trace_sink2 (int indx, unsigned32 input1, unsigned32 input2) { if (!tic80_size_name) tic80_init_trace (); sprintf (tic80_trace_buffer, "%-*s 0x%.*lx/%*ld 0x%.*lx/%*ld", tic80_size_name, itable[indx].name, SIZE_HEX, input1, SIZE_DECIMAL, (long)(signed32)input1, SIZE_HEX, input2, SIZE_DECIMAL, (long)(signed32)input2); return tic80_trace_buffer; } /* Trace the result of a data sink with three inputs */ char * tic80_trace_sink3 (int indx, unsigned32 input1, unsigned32 input2, unsigned32 input3) { if (!tic80_size_name) tic80_init_trace (); sprintf (tic80_trace_buffer, "%-*s 0x%.*lx/%*ld 0x%.*lx/%*ld 0x%.*lx/%*ld", tic80_size_name, itable[indx].name, SIZE_HEX, input1, SIZE_DECIMAL, (long)(signed32)input1, SIZE_HEX, input2, SIZE_DECIMAL, (long)(signed32)input2, SIZE_HEX, input3, SIZE_DECIMAL, (long)(signed32)input3); return tic80_trace_buffer; } /* Trace the result of a conditional branch operation */ char * tic80_trace_cond_br (int indx, int jump_p, unsigned32 cond, unsigned32 target, int size, int code) { char *suffix1, *suffix2; if (!tic80_size_name) tic80_init_trace (); if (size >= 0 && code >= 0) { /* BCND */ switch (code) { default: suffix1 = "???"; break; case 0: suffix1 = "nev"; break; case 1: suffix1 = "gt0"; break; case 2: suffix1 = "eq0"; break; case 3: suffix1 = "ge0"; break; case 4: suffix1 = "lt0"; break; case 5: suffix1 = "ne0"; break; case 6: suffix1 = "le0"; break; case 7: suffix1 = "alw"; break; } switch (size) { default: suffix2 = ".?"; break; case 0: suffix2 = ".b"; break; case 1: suffix2 = ".h"; break; case 2: suffix2 = ".w"; break; } } else { /* BBO/BBZ */ suffix2 = ""; switch (cond) { default: suffix1 = "??.?"; break; case 29: suffix1 = "hs.w"; break; case 28: suffix1 = "lo.w"; break; case 27: suffix1 = "ls.w"; break; case 26: suffix1 = "hi.w"; break; case 25: suffix1 = "ge.w"; break; case 24: suffix1 = "lt.w"; break; case 23: suffix1 = "le.w"; break; case 22: suffix1 = "gt.w"; break; case 21: suffix1 = "ne.w"; break; case 20: suffix1 = "eq.w"; break; case 19: suffix1 = "hs.h"; break; case 18: suffix1 = "lo.h"; break; case 17: suffix1 = "ls.h"; break; case 16: suffix1 = "hi.h"; break; case 15: suffix1 = "ge.h"; break; case 14: suffix1 = "lt.h"; break; case 13: suffix1 = "le.h"; break; case 12: suffix1 = "gt.h"; break; case 11: suffix1 = "ne.h"; break; case 10: suffix1 = "eq.h"; break; case 9: suffix1 = "hs.b"; break; case 8: suffix1 = "lo.b"; break; case 7: suffix1 = "ls.b"; break; case 6: suffix1 = "hi.b"; break; case 5: suffix1 = "ge.b"; break; case 4: suffix1 = "lt.b"; break; case 3: suffix1 = "le.b"; break; case 2: suffix1 = "gt.b"; break; case 1: suffix1 = "ne.b"; break; case 0: suffix1 = "eq.b"; break; } } if (jump_p) sprintf (tic80_trace_buffer, "%-*s 0x%.*lx %*s 0x%.*lx/%*ld => 0x%.*lx %s%s", tic80_size_name, itable[indx].name, SIZE_HEX, target, SIZE_DECIMAL, "", SIZE_HEX, cond, SIZE_DECIMAL, (long)(signed32)cond, SIZE_HEX, target, suffix1, suffix2); else sprintf (tic80_trace_buffer, "%-*s 0x%.*lx %*s 0x%.*lx/%*ld => %-*s %s%s", tic80_size_name, itable[indx].name, SIZE_HEX, target, SIZE_DECIMAL, "", SIZE_HEX, cond, SIZE_DECIMAL, (long)(signed32)cond, SIZE_HEX + 2, "[no jump]", suffix1, suffix2); return tic80_trace_buffer; } /* Trace the result of a unconditional branch operation */ char * tic80_trace_ucond_br (int indx, unsigned32 target) { if (!tic80_size_name) tic80_init_trace (); sprintf (tic80_trace_buffer, "%-*s 0x%.*lx %*s => 0x%.*lx", tic80_size_name, itable[indx].name, SIZE_HEX, target, (SIZE_DECIMAL*2) + SIZE_HEX + 4, "", SIZE_HEX, target); return tic80_trace_buffer; } /* Trace the result of a load or store operation with 2 integer addresses and an integer output or input */ void tic80_trace_ldst (SIM_DESC sd, sim_cpu *cpu, sim_cia cia, int indx, int st_p, int m_p, int s_p, unsigned32 value, unsigned32 input1, unsigned32 input2) { char name[40]; if (!tic80_size_name) tic80_init_trace (); strcpy (name, itable[indx].name); if (m_p) strcat (name, ":m"); if (s_p) strcat (name, ":s"); trace_one_insn (sd, cpu, cia.ip, 1, itable[indx].file, itable[indx].line_nr, "memory", "%-*s 0x%.*lx/%*ld 0x%.*lx/%*ld %s 0x%.*lx/%*ld", tic80_size_name, name, SIZE_HEX, input1, SIZE_DECIMAL, (long)(signed32)input1, SIZE_HEX, input2, SIZE_DECIMAL, (long)(signed32)input2, (!st_p) ? "=>" : "<=", SIZE_HEX, value, SIZE_DECIMAL, (long)(signed32)value); } #endif /* WITH_TRACE */