URL
https://opencores.org/ocsvn/eco32/eco32/trunk
Subversion Repositories eco32
[/] [eco32/] [trunk/] [sim/] [trace.c] - Rev 323
Go to most recent revision | Compare with Previous | Blame | View Log
/* * trace.c -- trace buffer */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <setjmp.h> #include "common.h" #include "console.h" #include "error.h" #include "except.h" #include "disasm.h" #include "trace.h" #define TRACE_EMPTY 0 #define TRACE_FETCH 1 #define TRACE_EXEC 2 #define TRACE_LOAD_WORD 3 #define TRACE_LOAD_HALF 4 #define TRACE_LOAD_BYTE 5 #define TRACE_STORE_WORD 6 #define TRACE_STORE_HALF 7 #define TRACE_STORE_BYTE 8 #define TRACE_EXCEPTION 9 typedef struct { unsigned char type; Word data1; Word data2; } TraceEntry; static TraceEntry traceBuffer[TRACE_BUF_SIZE]; static int nextWrite; /**************************************************************/ void traceFetch(Word pc) { traceBuffer[nextWrite].type = TRACE_FETCH; traceBuffer[nextWrite].data1 = pc; nextWrite = (nextWrite + 1) & TRACE_BUF_MASK; } void traceExec(Word instr, Word locus) { traceBuffer[nextWrite].type = TRACE_EXEC; traceBuffer[nextWrite].data1 = instr; traceBuffer[nextWrite].data2 = locus; nextWrite = (nextWrite + 1) & TRACE_BUF_MASK; } void traceLoadWord(Word addr) { traceBuffer[nextWrite].type = TRACE_LOAD_WORD; traceBuffer[nextWrite].data1 = addr; nextWrite = (nextWrite + 1) & TRACE_BUF_MASK; } void traceLoadHalf(Word addr) { traceBuffer[nextWrite].type = TRACE_LOAD_HALF; traceBuffer[nextWrite].data1 = addr; nextWrite = (nextWrite + 1) & TRACE_BUF_MASK; } void traceLoadByte(Word addr) { traceBuffer[nextWrite].type = TRACE_LOAD_BYTE; traceBuffer[nextWrite].data1 = addr; nextWrite = (nextWrite + 1) & TRACE_BUF_MASK; } void traceStoreWord(Word addr) { traceBuffer[nextWrite].type = TRACE_STORE_WORD; traceBuffer[nextWrite].data1 = addr; nextWrite = (nextWrite + 1) & TRACE_BUF_MASK; } void traceStoreHalf(Word addr) { traceBuffer[nextWrite].type = TRACE_STORE_HALF; traceBuffer[nextWrite].data1 = addr; nextWrite = (nextWrite + 1) & TRACE_BUF_MASK; } void traceStoreByte(Word addr) { traceBuffer[nextWrite].type = TRACE_STORE_BYTE; traceBuffer[nextWrite].data1 = addr; nextWrite = (nextWrite + 1) & TRACE_BUF_MASK; } void traceException(Word priority) { traceBuffer[nextWrite].type = TRACE_EXCEPTION; traceBuffer[nextWrite].data1 = priority; nextWrite = (nextWrite + 1) & TRACE_BUF_MASK; } char *traceShow(int back) { static char answer[100]; int index; if (back < 1 || back > TRACE_BUF_SIZE) { return NULL; } index = (nextWrite - back) & TRACE_BUF_MASK; switch (traceBuffer[index].type) { case TRACE_EMPTY: sprintf(answer, "-- empty --"); break; case TRACE_FETCH: sprintf(answer, "instr fetch, addr = %08X", traceBuffer[index].data1); break; case TRACE_EXEC: sprintf(answer, "instr exec, instr = %08X %s", traceBuffer[index].data1, disasm(traceBuffer[index].data1, traceBuffer[index].data2)); break; case TRACE_LOAD_WORD: sprintf(answer, "load word, addr = %08X", traceBuffer[index].data1); break; case TRACE_LOAD_HALF: sprintf(answer, "load half, addr = %08X", traceBuffer[index].data1); break; case TRACE_LOAD_BYTE: sprintf(answer, "load byte, addr = %08X", traceBuffer[index].data1); break; case TRACE_STORE_WORD: sprintf(answer, "store word, addr = %08X", traceBuffer[index].data1); break; case TRACE_STORE_HALF: sprintf(answer, "store half, addr = %08X", traceBuffer[index].data1); break; case TRACE_STORE_BYTE: sprintf(answer, "store byte, addr = %08X", traceBuffer[index].data1); break; case TRACE_EXCEPTION: sprintf(answer, "**** exception %2d (%s) ****", traceBuffer[index].data1, exceptionToString(traceBuffer[index].data1)); break; default: error("unknown trace buffer entry"); } return answer; } /**************************************************************/ void traceReset(void) { int i; cPrintf("Resetting Trace Buffer...\n"); for (i = 0; i < TRACE_BUF_SIZE; i++) { traceBuffer[i].type = TRACE_EMPTY; } nextWrite = 0; } void traceInit(void) { traceReset(); } void traceExit(void) { }
Go to most recent revision | Compare with Previous | Blame | View Log