// SREG bit names
const char * _sreg_bit_name = "cznvshti";
+#ifdef NO_COLOR
+ #define FONT_RED
+ #define FONT_DEFAULT
+#else
+ #define FONT_RED "\e[31m"
+ #define FONT_DEFAULT "\e[0m"
+#endif
+
/*
* Handle "touching" registers, marking them changed.
* This is used only for debugging purposes to be able to
#define T(w) w
-#define REG_TOUCH(a, r) (a)->touched[(r) >> 5] |= (1 << ((r) & 0x1f))
-#define REG_ISTOUCHED(a, r) ((a)->touched[(r) >> 5] & (1 << ((r) & 0x1f)))
+#define REG_TOUCH(a, r) (a)->trace_data->touched[(r) >> 5] |= (1 << ((r) & 0x1f))
+#define REG_ISTOUCHED(a, r) ((a)->trace_data->touched[(r) >> 5] & (1 << ((r) & 0x1f)))
/*
- * This allows a "special case" to skip indtruction tracing when in these
- * symbols. since printf() is useful to have, but generates a lot of cycles
+ * This allows a "special case" to skip instruction tracing when in these
+ * symbols since printf() is useful to have, but generates a lot of cycles.
*/
int dont_trace(const char * name)
{
#define STATE(_f, args...) { \
if (avr->trace) {\
- if (avr->codeline && avr->codeline[avr->pc>>1]) {\
- const char * symn = avr->codeline[avr->pc>>1]->symbol; \
+ if (avr->trace_data->codeline && avr->trace_data->codeline[avr->pc>>1]) {\
+ const char * symn = avr->trace_data->codeline[avr->pc>>1]->symbol; \
int dont = 0 && dont_trace(symn);\
if (dont!=donttrace) { \
donttrace = dont;\
{
if (addr > avr->ramend) {
printf("*** Invalid write address PC=%04x SP=%04x O=%04x Address %04x=%02x out of ram\n",
- avr->pc, _avr_sp_get(avr), avr->flash[avr->pc] | (avr->flash[avr->pc]<<8), addr, v);
+ avr->pc, _avr_sp_get(avr), avr->flash[avr->pc + 1] | (avr->flash[avr->pc]<<8), addr, v);
CRASH();
}
if (addr < 32) {
printf("*** Invalid write address PC=%04x SP=%04x O=%04x Address %04x=%02x low registers\n",
- avr->pc, _avr_sp_get(avr), avr->flash[avr->pc] | (avr->flash[avr->pc]<<8), addr, v);
+ avr->pc, _avr_sp_get(avr), avr->flash[avr->pc + 1] | (avr->flash[avr->pc]<<8), addr, v);
CRASH();
}
#if AVR_STACK_WATCH
* higher on the stack than it should be. It's a sign of code that has overrun it's stack
* frame and is munching on it's own return address.
*/
- if (avr->stack_frame_index > 1 && addr > avr->stack_frame[avr->stack_frame_index-2].sp) {
- printf("\e[31m%04x : munching stack SP %04x, A=%04x <= %02x\e[0m\n", avr->pc, _avr_sp_get(avr), addr, v);
+ if (avr->trace_data->stack_frame_index > 1 && addr > avr->trace_data->stack_frame[avr->trace_data->stack_frame_index-2].sp) {
+ printf( FONT_RED "%04x : munching stack SP %04x, A=%04x <= %02x\n" FONT_DEFAULT, avr->pc, _avr_sp_get(avr), addr, v);
}
#endif
avr->data[addr] = v;
uint8_t avr_core_watch_read(avr_t *avr, uint16_t addr)
{
if (addr > avr->ramend) {
- printf("*** Invalid read address PC=%04x SP=%04x O=%04x Address %04x out of ram (%04x)\n",
- avr->pc, _avr_sp_get(avr), avr->flash[avr->pc] | (avr->flash[avr->pc]<<8), addr, avr->ramend);
+ printf( FONT_RED "*** Invalid read address PC=%04x SP=%04x O=%04x Address %04x out of ram (%04x)\n" FONT_DEFAULT,
+ avr->pc, _avr_sp_get(avr), avr->flash[avr->pc + 1] | (avr->flash[avr->pc]<<8), addr, avr->ramend);
CRASH();
}
return avr->data[addr];
/*
* Set a register (r < 256)
- * if it's an IO regisrer (> 31) also (try to) call any callback that was
+ * if it's an IO register (> 31) also (try to) call any callback that was
* registered to track changes to that register.
*/
static inline void _avr_set_r(avr_t * avr, uint8_t r, uint8_t v)
static void _avr_invalid_opcode(avr_t * avr)
{
#if CONFIG_SIMAVR_TRACE
- printf("\e[31m*** %04x: %-25s Invalid Opcode SP=%04x O=%04x \e[0m\n",
- avr->pc, avr->codeline[avr->pc>>1]->symbol, _avr_sp_get(avr), avr->flash[avr->pc] | (avr->flash[avr->pc+1]<<8));
+ printf( FONT_RED "*** %04x: %-25s Invalid Opcode SP=%04x O=%04x \n" FONT_DEFAULT,
+ avr->pc, avr->trace_data->codeline[avr->pc>>1]->symbol, _avr_sp_get(avr), avr->flash[avr->pc] | (avr->flash[avr->pc+1]<<8));
#else
- printf("\e[31m*** %04x: Invalid Opcode SP=%04x O=%04x \e[0m\n",
+ printf( FONT_RED "*** %04x: Invalid Opcode SP=%04x O=%04x \n" FONT_DEFAULT,
avr->pc, _avr_sp_get(avr), avr->flash[avr->pc] | (avr->flash[avr->pc+1]<<8));
#endif
}
int doit = 0;
for (int r = 0; r < 3 && !doit; r++)
- if (avr->touched[r])
+ if (avr->trace_data->touched[r])
doit = 1;
if (!doit)
return;
*/
#if CONFIG_SIMAVR_TRACE
#define TRACE_JUMP()\
- avr->old[avr->old_pci].pc = avr->pc;\
- avr->old[avr->old_pci].sp = _avr_sp_get(avr);\
- avr->old_pci = (avr->old_pci + 1) & (OLD_PC_SIZE-1);\
+ avr->trace_data->old[avr->trace_data->old_pci].pc = avr->pc;\
+ avr->trace_data->old[avr->trace_data->old_pci].sp = _avr_sp_get(avr);\
+ avr->trace_data->old_pci = (avr->trace_data->old_pci + 1) & (OLD_PC_SIZE-1);\
#if AVR_STACK_WATCH
#define STACK_FRAME_PUSH()\
- avr->stack_frame[avr->stack_frame_index].pc = avr->pc;\
- avr->stack_frame[avr->stack_frame_index].sp = _avr_sp_get(avr);\
- avr->stack_frame_index++;
+ avr->trace_data->stack_frame[avr->trace_data->stack_frame_index].pc = avr->pc;\
+ avr->trace_data->stack_frame[avr->trace_data->stack_frame_index].sp = _avr_sp_get(avr);\
+ avr->trace_data->stack_frame_index++;
#define STACK_FRAME_POP()\
- if (avr->stack_frame_index > 0) \
- avr->stack_frame_index--;
+ if (avr->trace_data->stack_frame_index > 0) \
+ avr->trace_data->stack_frame_index--;
#else
#define STACK_FRAME_PUSH()
#define STACK_FRAME_POP()
return (rd & ~rr & ~res) | (~rd & rr & res);
}
-static inline int _avr_is_instruction_32_bits(avr_t * avr, uint32_t pc)
+static inline int _avr_is_instruction_32_bits(avr_t * avr, avr_flashaddr_t pc)
{
uint16_t o = (avr->flash[pc] | (avr->flash[pc+1] << 8)) & 0xfc0f;
return o == 0x9200 || // STS ! Store Direct to Data Space
* + It also doesn't check whether the core it's
* emulating is supposed to have the fancy instructions, like multiply and such.
*
- * The nunber of cycles taken by instruction has been added, but might not be
+ * The number of cycles taken by instruction has been added, but might not be
* entirely accurate.
*/
-uint16_t avr_run_one(avr_t * avr)
+avr_flashaddr_t avr_run_one(avr_t * avr)
{
#if CONFIG_SIMAVR_TRACE
/*
STATE("RESET\n");
CRASH();
}
- avr->touched[0] = avr->touched[1] = avr->touched[2] = 0;
+ avr->trace_data->touched[0] = avr->trace_data->touched[1] = avr->trace_data->touched[2] = 0;
#endif
- uint32_t opcode = (avr->flash[avr->pc + 1] << 8) | avr->flash[avr->pc];
- uint32_t new_pc = avr->pc + 2; // future "default" pc
- int cycle = 1;
+ uint32_t opcode = (avr->flash[avr->pc + 1] << 8) | avr->flash[avr->pc];
+ avr_flashaddr_t new_pc = avr->pc + 2; // future "default" pc
+ int cycle = 1;
switch (opcode & 0xf000) {
case 0x0000: {
} break;
case 0x940c:
case 0x940d: { // JMP Long Call to sub, 32 bits
- uint32_t a = ((opcode & 0x01f0) >> 3) | (opcode & 1);
+ avr_flashaddr_t a = ((opcode & 0x01f0) >> 3) | (opcode & 1);
uint16_t x = (avr->flash[new_pc+1] << 8) | avr->flash[new_pc];
a = (a << 16) | x;
STATE("jmp 0x%06x\n", a);
} break;
case 0x940e:
case 0x940f: { // CALL Long Call to sub, 32 bits
- uint32_t a = ((opcode & 0x01f0) >> 3) | (opcode & 1);
+ avr_flashaddr_t a = ((opcode & 0x01f0) >> 3) | (opcode & 1);
uint16_t x = (avr->flash[new_pc+1] << 8) | avr->flash[new_pc];
a = (a << 16) | x;
STATE("call 0x%06x\n", a);
case 0xc000: {
// RJMP 1100 kkkk kkkk kkkk
- short o = ((short)(opcode << 4)) >> 4;
+// int16_t o = ((int16_t)(opcode << 4)) >> 4; // CLANG BUG!
+ int16_t o = ((int16_t)((opcode << 4)&0xffff)) >> 4;
STATE("rjmp .%d [%04x]\n", o, new_pc + (o << 1));
new_pc = new_pc + (o << 1);
cycle++;
case 0xd000: {
// RCALL 1100 kkkk kkkk kkkk
- short o = ((short)(opcode << 4)) >> 4;
+// int16_t o = ((int16_t)(opcode << 4)) >> 4; // CLANG BUG!
+ int16_t o = ((int16_t)((opcode << 4)&0xffff)) >> 4;
STATE("rcall .%d [%04x]\n", o, new_pc + (o << 1));
_avr_push16(avr, new_pc >> 1);
new_pc = new_pc + (o << 1);
case 0xf200:
case 0xf400:
case 0xf600: { // All the SREG branches
- short o = ((short)(opcode << 6)) >> 9; // offset
+ int16_t o = ((int16_t)(opcode << 6)) >> 9; // offset
uint8_t s = opcode & 7;
int set = (opcode & 0x0400) == 0; // this bit means BRXC otherwise BRXS
int branch = (avr->sreg[s] && set) || (!avr->sreg[s] && !set);
projects / simavr / blobdiff