25 |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
26 |
* |
* |
27 |
* |
* |
28 |
* $Id: cpu_arm.c,v 1.67 2006/12/30 13:30:53 debug Exp $ |
* $Id: cpu_arm.c,v 1.68 2007/03/26 02:01:35 debug Exp $ |
29 |
* |
* |
30 |
* ARM CPU emulation. |
* ARM CPU emulation. |
31 |
* |
* |
726 |
} |
} |
727 |
|
|
728 |
|
|
|
static void add_response_word(struct cpu *cpu, char *r, uint32_t value, |
|
|
size_t maxlen) |
|
|
{ |
|
|
if (cpu->byte_order == EMUL_LITTLE_ENDIAN) { |
|
|
value = ((value & 0xff) << 24) + |
|
|
((value & 0xff00) << 8) + |
|
|
((value & 0xff0000) >> 8) + |
|
|
((value & 0xff000000) >> 24); |
|
|
} |
|
|
snprintf(r + strlen(r), maxlen - strlen(r), "%08"PRIx32, value); |
|
|
} |
|
|
|
|
|
|
|
|
/* |
|
|
* arm_cpu_gdb_stub(): |
|
|
* |
|
|
* Execute a "remote GDB" command. Returns a newly allocated response string |
|
|
* on success, NULL on failure. |
|
|
*/ |
|
|
char *arm_cpu_gdb_stub(struct cpu *cpu, char *cmd) |
|
|
{ |
|
|
if (strcmp(cmd, "g") == 0) { |
|
|
/* 15 gprs, pc, 8 fprs, fps, cpsr. */ |
|
|
int i; |
|
|
char *r; |
|
|
size_t len = 1 + 18 * sizeof(uint32_t); |
|
|
r = malloc(len); |
|
|
if (r == NULL) { |
|
|
fprintf(stderr, "out of memory\n"); |
|
|
exit(1); |
|
|
} |
|
|
r[0] = '\0'; |
|
|
for (i=0; i<15; i++) |
|
|
add_response_word(cpu, r, cpu->cd.arm.r[i], len); |
|
|
add_response_word(cpu, r, cpu->pc, len); |
|
|
/* TODO: fprs: */ |
|
|
for (i=0; i<8; i++) |
|
|
add_response_word(cpu, r, 0, len); |
|
|
/* TODO: fps */ |
|
|
add_response_word(cpu, r, 0, len); |
|
|
add_response_word(cpu, r, cpu->cd.arm.cpsr, len); |
|
|
return r; |
|
|
} |
|
|
|
|
|
if (cmd[0] == 'p') { |
|
|
int regnr = strtol(cmd + 1, NULL, 16); |
|
|
size_t len = 2 * sizeof(uint32_t) + 1; |
|
|
char *r = malloc(len); |
|
|
r[0] = '\0'; |
|
|
if (regnr == ARM_PC) { |
|
|
add_response_word(cpu, r, cpu->pc, len); |
|
|
} else if (regnr >= 0 && regnr < ARM_PC) { |
|
|
add_response_word(cpu, r, cpu->cd.arm.r[regnr], len); |
|
|
} else if (regnr >= 0x10 && regnr <= 0x17) { |
|
|
/* TODO: fprs */ |
|
|
add_response_word(cpu, r, 0, len); |
|
|
add_response_word(cpu, r, 0, len); |
|
|
add_response_word(cpu, r, 0, len); |
|
|
} else if (regnr == 0x18) { |
|
|
/* TODO: fps */ |
|
|
add_response_word(cpu, r, 0, len); |
|
|
} else if (regnr == 0x19) { |
|
|
add_response_word(cpu, r, cpu->cd.arm.cpsr, len); |
|
|
} |
|
|
return r; |
|
|
} |
|
|
|
|
|
fatal("arm_cpu_gdb_stub(): TODO\n"); |
|
|
return NULL; |
|
|
} |
|
|
|
|
|
|
|
729 |
/* |
/* |
730 |
* arm_irq_interrupt_assert(): |
* arm_irq_interrupt_assert(): |
731 |
|
* arm_irq_interrupt_deassert(): |
732 |
*/ |
*/ |
733 |
void arm_irq_interrupt_assert(struct interrupt *interrupt) |
void arm_irq_interrupt_assert(struct interrupt *interrupt) |
734 |
{ |
{ |
735 |
struct cpu *cpu = (struct cpu *) interrupt->extra; |
struct cpu *cpu = (struct cpu *) interrupt->extra; |
736 |
cpu->cd.arm.irq_asserted = 1; |
cpu->cd.arm.irq_asserted = 1; |
737 |
} |
} |
|
|
|
|
|
|
|
/* |
|
|
* arm_irq_interrupt_deassert(): |
|
|
*/ |
|
738 |
void arm_irq_interrupt_deassert(struct interrupt *interrupt) |
void arm_irq_interrupt_deassert(struct interrupt *interrupt) |
739 |
{ |
{ |
740 |
struct cpu *cpu = (struct cpu *) interrupt->extra; |
struct cpu *cpu = (struct cpu *) interrupt->extra; |