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ARM TCG conversion 9/16.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4146 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2008-03-31 03:47:03 +00:00
parent d9ba48308d
commit b010980544
8 changed files with 487 additions and 409 deletions
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33
target-arm/op_helper.c
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@ -459,3 +459,36 @@ void HELPER(cpsr_write)(uint32_t val, uint32_t mask)
{
cpsr_write(env, val, mask);
}
/* Access to user mode registers from privileged modes. */
uint32_t HELPER(get_user_reg)(uint32_t regno)
{
uint32_t val;
if (regno == 13) {
val = env->banked_r13[0];
} else if (regno == 14) {
val = env->banked_r14[0];
} else if (regno >= 8
&& (env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_FIQ) {
val = env->usr_regs[regno - 8];
} else {
val = env->regs[regno];
}
return val;
}
void HELPER(set_user_reg)(uint32_t regno, uint32_t val)
{
if (regno == 13) {
env->banked_r13[0] = val;
} else if (regno == 14) {
env->banked_r14[0] = val;
} else if (regno >= 8
&& (env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_FIQ) {
env->usr_regs[regno - 8] = val;
} else {
env->regs[regno] = val;
}
}