/* TIc80 Simulator.
- Copyright (C) 1997 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998 Free Software Foundation, Inc.
Contributed by Cygnus Support.
This file is part of GDB, the GNU debugger.
-typedef struct _sim_cpu {
+/* TI C80 control registers */
+
+typedef enum {
+ EPC_CR,
+ EIP_CR,
+ CONFIG_CR,
+ INTPEN_CR,
+ IE_CR,
+ FPST_CR,
+ PPERROR_CR,
+ PKTREQ_CR,
+ TCOUNT_CR,
+ TSCALE_CR,
+ FLTOP_CR,
+ FLTADR_CR,
+ FLTTAG_CR,
+ FLTDLT_CR,
+ FLTDTH_CR,
+ FLT005_CR,
+ FLT006_CR,
+ FLT007_CR,
+ FLT008_CR,
+ FLT009_CR,
+ FLT010_CR,
+ FLT011_CR,
+ FLT012_CR,
+ FLT013_CR,
+ FLT014_CR,
+ FLT015_CR,
+ SYSSTK_CR,
+ SYSTMP_CR,
+ MPC_CR,
+ MIP_CR,
+ ECOMCNTL_CR,
+ ANASTAT_CR,
+ BRK1_CR,
+ BRK2_CR,
+ ITAG0_CR,
+ ITAG1_CR,
+ ITAG2_CR,
+ ITAG3_CR,
+ ITAG4_CR,
+ ITAG5_CR,
+ ITAG6_CR,
+ ITAG7_CR,
+ ITAG8_CR,
+ ITAG9_CR,
+ ITAG10_CR,
+ ITAG11_CR,
+ ITAG12_CR,
+ ITAG13_CR,
+ ITAG14_CR,
+ ITAG15_CR,
+ ILRU_CR,
+ DTAG0_CR,
+ DTAG1_CR,
+ DTAG2_CR,
+ DTAG3_CR,
+ DTAG4_CR,
+ DTAG5_CR,
+ DTAG6_CR,
+ DTAG7_CR,
+ DTAG8_CR,
+ DTAG9_CR,
+ DTAG10_CR,
+ DTAG11_CR,
+ DTAG12_CR,
+ DTAG13_CR,
+ DTAG14_CR,
+ DTAG15_CR,
+ DLRU_CR,
+ IN0P_CR,
+ IN1P_CR,
+ OUTP_CR,
+ SCRATCH_CR,
+ nr_tic80_control_regs,
+} tic80_control_regs;
+
+/* extern int tic80_cr2index (tic80_control_regs reg); */
+
+/* Map an instruction CR index onto the corresponding internal cr enum
+ or SCRATCH_CR if the index is invalid */
+
+extern tic80_control_regs tic80_index2cr (int index);
+
+
+/* TIc80 interrupt register bits */
+
+enum {
+ IE_CR_PE = BIT32(31),
+ IE_CR_X4 = BIT32(30),
+ IE_CR_X3 = BIT32(29),
+ IE_CR_BP = BIT32(28),
+ IE_CR_PB = BIT32(27),
+ IE_CR_PC = BIT32(26),
+ IE_CR_MI = BIT32(25),
+ /**/
+ IE_CR_P3 = BIT32(19),
+ IE_CR_P2 = BIT32(18),
+ IE_CR_P1 = BIT32(17),
+ IE_CR_P0 = BIT32(16),
+ IE_CR_IO = BIT32(15),
+ IE_CR_MF = BIT32(14),
+ /**/
+ IE_CR_X2 = BIT32(12),
+ IE_CR_X1 = BIT32(11),
+ IE_CR_TI = BIT32(10),
+ IE_CR_F1 = BIT32(9),
+ IE_CR_F0 = BIT32(8),
+ IE_CR_FX = BIT32(7),
+ IE_CR_FU = BIT32(6),
+ IE_CR_FO = BIT32(5),
+ /**/
+ IE_CR_FZ = BIT32(3),
+ IE_CR_FI = BIT32(2),
+ /**/
+ IE_CR_IE = BIT32(0),
+};
+
+
+
+
+struct _sim_cpu {
unsigned32 reg[32];
unsigned64 acc[4];
- instruction_address cia;
+ unsigned32 cr[nr_tic80_control_regs];
+ int is_user_mode; /* hidden mode latch */
+ sim_cia cia;
sim_cpu_base base;
-} sim_cpu;
+};
+
+#define CIA_GET(CPU) ((CPU)->cia)
+#define CIA_SET(CPU,VAL) ((CPU)->cia = (VAL))
#define GPR(N) ((CPU)->reg[N])
+#define GPR_SET(N, VAL) ((CPU)->reg[N] = (VAL))
#define ACC(N) ((CPU)->acc[N])
+#define CR(N) ((CPU)->cr[tic80_index2cr ((N))])
+
+
+
+#if defined(WITH_TRACE)
+extern char *tic80_trace_alu3 PARAMS ((int, unsigned32, unsigned32, unsigned32));
+extern char *tic80_trace_cmp PARAMS ((int, unsigned32, unsigned32, unsigned32));
+extern char *tic80_trace_alu2 PARAMS ((int, unsigned32, unsigned32));
+extern char *tic80_trace_shift PARAMS ((int, unsigned32, unsigned32, int, int, int, int, int));
+extern void tic80_trace_fpu3 PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, sim_fpu *, sim_fpu *, sim_fpu *));
+extern void tic80_trace_fpu2 PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, sim_fpu *, sim_fpu *));
+extern void tic80_trace_fpu1 PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, sim_fpu *));
+extern void tic80_trace_fpu2i PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, unsigned32, sim_fpu *, sim_fpu *));
+extern void tic80_trace_fpu2cmp PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, unsigned32, sim_fpu *, sim_fpu *));
+extern char *tic80_trace_nop PARAMS ((int));
+extern char *tic80_trace_sink1 PARAMS ((int, unsigned32));
+extern char *tic80_trace_sink2 PARAMS ((int, unsigned32, unsigned32));
+extern char *tic80_trace_sink3 PARAMS ((int, unsigned32, unsigned32, unsigned32));
+extern char *tic80_trace_cond_br PARAMS ((int, int, unsigned32, unsigned32));
+extern char *tic80_trace_ucond_br PARAMS ((int, unsigned32));
+extern void tic80_trace_ldst PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, int, int, int, unsigned32, unsigned32, unsigned32));
+
+#define TRACE_ALU3(indx, result, input1, input2) \
+do { \
+ if (TRACE_ALU_P (CPU)) { \
+ trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file, \
+ itable[indx].line_nr, "alu", \
+ tic80_trace_alu3 (indx, result, input1, input2)); \
+ } \
+} while (0)
+
+#define TRACE_CMP(indx, result, input1, input2) \
+do { \
+ if (TRACE_ALU_P (CPU)) { \
+ trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file, \
+ itable[indx].line_nr, "alu", \
+ tic80_trace_cmp (indx, result, input1, input2)); \
+ } \
+} while (0)
+
+#define TRACE_ALU2(indx, result, input) \
+do { \
+ if (TRACE_ALU_P (CPU)) { \
+ trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file, \
+ itable[indx].line_nr, "alu", \
+ tic80_trace_alu2 (indx, result, input)); \
+ } \
+} while (0)
+
+#define TRACE_SHIFT(indx, result, input, i, n, merge, endmask, rotate) \
+do { \
+ if (TRACE_ALU_P (CPU)) { \
+ trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file, \
+ itable[indx].line_nr, "shift", \
+ tic80_trace_shift (indx, result, input, i, n, \
+ merge, endmask, rotate)); \
+ } \
+} while (0)
+
+#define TRACE_FPU3(result, input1, input2) \
+do { \
+ if (TRACE_FPU_P (CPU)) { \
+ tic80_trace_fpu3 (SD, CPU, cia, MY_INDEX, \
+ &result, &input1, &input2); \
+ } \
+} while (0)
+
+#define TRACE_FPU2(result, input) \
+do { \
+ if (TRACE_FPU_P (CPU)) { \
+ tic80_trace_fpu2 (SD, CPU, cia, MY_INDEX, \
+ &result, &input); \
+ } \
+} while (0)
+
+#define TRACE_FPU1(result) \
+do { \
+ if (TRACE_FPU_P (CPU)) { \
+ tic80_trace_fpu1 (SD, CPU, cia, MY_INDEX, \
+ &result); \
+ } \
+} while (0)
+
+#define TRACE_FPU2I(result, input1, input2) \
+do { \
+ if (TRACE_FPU_P (CPU)) { \
+ tic80_trace_fpu2i (SD, CPU, cia, MY_INDEX, \
+ result, &input1, &input2); \
+ } \
+} while (0)
+
+#define TRACE_FPU2CMP(result, input1, input2) \
+do { \
+ if (TRACE_FPU_P (CPU)) { \
+ tic80_trace_fpu2cmp (SD, CPU, cia, MY_INDEX, \
+ result, &input1, &input2); \
+ } \
+} while (0)
+
+#define TRACE_NOP(indx) \
+do { \
+ if (TRACE_ALU_P (CPU)) { \
+ trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file, \
+ itable[indx].line_nr, "nop", \
+ tic80_trace_nop (indx)); \
+ } \
+} while (0)
+
+#define TRACE_SINK1(indx, input) \
+do { \
+ if (TRACE_ALU_P (CPU)) { \
+ trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file, \
+ itable[indx].line_nr, "nop", \
+ tic80_trace_sink1 (indx, input)); \
+ } \
+} while (0)
+
+#define TRACE_SINK2(indx, input1, input2) \
+do { \
+ if (TRACE_ALU_P (CPU)) { \
+ trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file, \
+ itable[indx].line_nr, "nop", \
+ tic80_trace_sink2 (indx, input1, input2)); \
+ } \
+} while (0)
+
+#define TRACE_SINK3(indx, input1, input2, input3) \
+do { \
+ if (TRACE_ALU_P (CPU)) { \
+ trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file, \
+ itable[indx].line_nr, "nop", \
+ tic80_trace_sink3 (indx, input1, input2, input3)); \
+ } \
+} while (0)
+
+#define TRACE_COND_BR(indx, jump_p, cond, target) \
+do { \
+ if (TRACE_BRANCH_P (CPU)) { \
+ trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file, \
+ itable[indx].line_nr, "branch", \
+ tic80_trace_cond_br (indx, jump_p, cond, target)); \
+ } \
+} while (0)
+
+#define TRACE_UCOND_BR(indx, target) \
+do { \
+ if (TRACE_BRANCH_P (CPU)) { \
+ trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file, \
+ itable[indx].line_nr, "branch", \
+ tic80_trace_ucond_br (indx, target)); \
+ } \
+} while (0)
+
+#define TRACE_LD(result, m, s, addr1, addr2) \
+do { \
+ if (TRACE_MEMORY_P (CPU)) { \
+ tic80_trace_ldst (SD, CPU, cia, MY_INDEX, \
+ 0, m, s, result, addr1, addr2); \
+ } \
+} while (0)
+
+#define TRACE_ST(value, m, s, addr1, addr2) \
+do { \
+ if (TRACE_MEMORY_P (CPU)) { \
+ tic80_trace_ldst (SD, CPU, cia, MY_INDEX, \
+ 1, m, s, value, addr1, addr2); \
+ } \
+} while (0)
+
+#else
+#define TRACE_ALU3(indx, result, input1, input2)
+#define TRACE_ALU2(indx, result, input)
+#define TRACE_FPU3(result, input1, input2)
+#define TRACE_FPU2(result, input)
+#define TRACE_FPU1(result)
+#define TRACE_FPU2I(result, input1, input2)
+#define TRACE_NOP(indx)
+#define TRACE_SINK1(indx, input)
+#define TRACE_SINK2(indx, input1, input2)
+#define TRACE_SINK3(indx, input1, input2, input3)
+#define TRACE_COND_BR(indx, jump_p, cond, target)
+#define TRACE_UCOND_BR(indx, target)
+#define TRACE_LD(m, s, result, addr1, addr2)
+#define TRACE_ST(m, s, value, addr1, addr2)
+#endif
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