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More efficient target register / TC accesses.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4794 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2008-06-27 10:02:35 +00:00
parent a37ee56cb7
commit b5dc7732e1
16 changed files with 327 additions and 246 deletions
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26
linux-user/main.c
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@ -1779,8 +1779,8 @@ void cpu_loop(CPUMIPSState *env)
trapnr = cpu_mips_exec(env);
switch(trapnr) {
case EXCP_SYSCALL:
syscall_num = env->gpr[env->current_tc][2] - 4000;
env->PC[env->current_tc] += 4;
syscall_num = env->active_tc.gpr[2] - 4000;
env->active_tc.PC += 4;
if (syscall_num >= sizeof(mips_syscall_args)) {
ret = -ENOSYS;
} else {
@ -1789,7 +1789,7 @@ void cpu_loop(CPUMIPSState *env)
abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
nb_args = mips_syscall_args[syscall_num];
sp_reg = env->gpr[env->current_tc][29];
sp_reg = env->active_tc.gpr[29];
switch (nb_args) {
/* these arguments are taken from the stack */
/* FIXME - what to do if get_user() fails? */
@ -1800,20 +1800,20 @@ void cpu_loop(CPUMIPSState *env)
default:
break;
}
ret = do_syscall(env, env->gpr[env->current_tc][2],
env->gpr[env->current_tc][4],
env->gpr[env->current_tc][5],
env->gpr[env->current_tc][6],
env->gpr[env->current_tc][7],
ret = do_syscall(env, env->active_tc.gpr[2],
env->active_tc.gpr[4],
env->active_tc.gpr[5],
env->active_tc.gpr[6],
env->active_tc.gpr[7],
arg5, arg6/*, arg7, arg8*/);
}
if ((unsigned int)ret >= (unsigned int)(-1133)) {
env->gpr[env->current_tc][7] = 1; /* error flag */
env->active_tc.gpr[7] = 1; /* error flag */
ret = -ret;
} else {
env->gpr[env->current_tc][7] = 0; /* error flag */
env->active_tc.gpr[7] = 0; /* error flag */
}
env->gpr[env->current_tc][2] = ret;
env->active_tc.gpr[2] = ret;
break;
case EXCP_TLBL:
case EXCP_TLBS:
@ -2566,9 +2566,9 @@ int main(int argc, char **argv)
int i;
for(i = 0; i < 32; i++) {
env->gpr[env->current_tc][i] = regs->regs[i];
env->active_tc.gpr[i] = regs->regs[i];
}
env->PC[env->current_tc] = regs->cp0_epc;
env->active_tc.PC = regs->cp0_epc;
}
#elif defined(TARGET_SH4)
{