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Fixed endianness when writing PPC32 CR register.

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This commit is contained in:
Zach Szczesniak 2022-07-20 18:31:13 -04:00
parent 6c1cbef6ac
commit 2b25867e4b
2 changed files with 18 additions and 1 deletions
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2
qemu/target/ppc/unicorn.c
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@ -292,7 +292,7 @@ static void reg_write(CPUPPCState *env, unsigned int regid, const void *value)
break;
case UC_PPC_REG_CR:
val = *(uint32_t *)value;
for (i = 0; i < 8; i++) {
for (i = 7; i >= 0; i--) {
env->crf[i] = val & 0b1111;
val >>= 4;
}

17
tests/unit/test_ppc.c
View File

@ -89,7 +89,24 @@ static void test_ppc32_sc(void)
OK(uc_close(uc));
}
static void test_ppc32_cr(void)
{
uc_engine *uc;
uint32_t r_cr = 0x12345678;
uc_common_setup(&uc, UC_ARCH_PPC, UC_MODE_32 | UC_MODE_BIG_ENDIAN, NULL, 0);
OK(uc_reg_write(uc, UC_PPC_REG_CR, &r_cr));
r_cr = 0;
OK(uc_reg_read(uc, UC_PPC_REG_CR, &r_cr));
TEST_CHECK(r_cr == 0x12345678);
OK(uc_close(uc));
}
TEST_LIST = {{"test_ppc32_add", test_ppc32_add},
{"test_ppc32_fadd", test_ppc32_fadd},
{"test_ppc32_sc", test_ppc32_sc},
{"test_ppc32_cr", test_ppc32_cr},
{NULL, NULL}};