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PowerPC system emulation fixes (Jocelyn Mayer)

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@722 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-04-12 20:39:29 +00:00
parent df475d18d8
commit a541f297a3
24 changed files with 1525 additions and 865 deletions
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59
gdbstub.c
View file

@ -220,42 +220,49 @@ static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size)
}
#elif defined (TARGET_PPC)
static void to_le32(uint8_t *p, int v)
static void to_le32(uint32_t *buf, uint32_t v)
{
uint8_t *p = (uint8_t *)buf;
p[3] = v;
p[2] = v >> 8;
p[1] = v >> 16;
p[0] = v >> 24;
}
static uint32_t from_le32 (uint32_t *buf)
{
uint8_t *p = (uint8_t *)buf;
return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24);
}
static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf)
{
uint32_t tmp;
uint32_t *registers = (uint32_t *)mem_buf, tmp;
int i;
/* fill in gprs */
for(i = 0; i < 8; i++) {
to_le32(mem_buf + i * 4, env->gpr[i]);
for(i = 0; i < 32; i++) {
to_le32(&registers[i], env->gpr[i]);
}
/* fill in fprs */
for (i = 0; i < 32; i++) {
to_le32(mem_buf + (i * 2) + 32, *((uint32_t *)&env->fpr[i]));
to_le32(mem_buf + (i * 2) + 33, *((uint32_t *)&env->fpr[i] + 1));
to_le32(&registers[(i * 2) + 32], *((uint32_t *)&env->fpr[i]));
to_le32(&registers[(i * 2) + 33], *((uint32_t *)&env->fpr[i] + 1));
}
/* nip, msr, ccr, lnk, ctr, xer, mq */
to_le32(mem_buf + 96, tswapl(env->nip));
to_le32(mem_buf + 97, tswapl(_load_msr()));
to_le32(mem_buf + 98, 0);
to_le32(&registers[96], (uint32_t)env->nip/* - 4*/);
to_le32(&registers[97], _load_msr(env));
tmp = 0;
for (i = 0; i < 8; i++)
tmp |= env->crf[i] << (32 - (i * 4));
to_le32(mem_buf + 98, tmp);
to_le32(mem_buf + 99, tswapl(env->lr));
to_le32(mem_buf + 100, tswapl(env->ctr));
to_le32(mem_buf + 101, tswapl(_load_xer()));
to_le32(mem_buf + 102, 0);
tmp |= env->crf[i] << (32 - ((i + 1) * 4));
to_le32(&registers[98], tmp);
to_le32(&registers[99], env->lr);
to_le32(&registers[100], env->ctr);
to_le32(&registers[101], _load_xer(env));
to_le32(&registers[102], 0);
return 102;
return 103 * 4;
}
static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size)
@ -265,22 +272,22 @@ static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size)
/* fill in gprs */
for (i = 0; i < 32; i++) {
env->gpr[i] = tswapl(registers[i]);
env->gpr[i] = from_le32(&registers[i]);
}
/* fill in fprs */
for (i = 0; i < 32; i++) {
*((uint32_t *)&env->fpr[i]) = tswapl(registers[(i * 2) + 32]);
*((uint32_t *)&env->fpr[i] + 1) = tswapl(registers[(i * 2) + 33]);
*((uint32_t *)&env->fpr[i]) = from_le32(&registers[(i * 2) + 32]);
*((uint32_t *)&env->fpr[i] + 1) = from_le32(&registers[(i * 2) + 33]);
}
/* nip, msr, ccr, lnk, ctr, xer, mq */
env->nip = tswapl(registers[96]);
_store_msr(tswapl(registers[97]));
registers[98] = tswapl(registers[98]);
env->nip = from_le32(&registers[96]);
_store_msr(env, from_le32(&registers[97]));
registers[98] = from_le32(&registers[98]);
for (i = 0; i < 8; i++)
env->crf[i] = (registers[98] >> (32 - (i * 4))) & 0xF;
env->lr = tswapl(registers[99]);
env->ctr = tswapl(registers[100]);
_store_xer(tswapl(registers[101]));
env->crf[i] = (registers[98] >> (32 - ((i + 1) * 4))) & 0xF;
env->lr = from_le32(&registers[99]);
env->ctr = from_le32(&registers[100]);
_store_xer(env, from_le32(&registers[101]));
}
#else