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memset crash

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UserDeploy 2025-04-19 12:18:21 +07:00
parent 7d2a97935c
commit 7ff0ff8a60
2 changed files with 13 additions and 11 deletions
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8
dcc/memory.c
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@ -16,11 +16,11 @@ void *memcpy(void *dst, const void *src, size_t len)
void *memset(void *dst, int val, size_t count)
{
uint8_t *d = dst;
register uint8_t *ptr = (uint8_t *)dst;
while (count--) {
*d = (uint8_t)val;
d++;
while (count-- > 0) {
if ((count & 0x1ff) == 0x1ff) wdog_reset();
*ptr++ = val;
}
return dst;

16
dcc_emu.py
View file

@ -124,16 +124,18 @@ def test_arm():
mu.hook_add(UC_HOOK_CODE, hook_code)
def on_read(mu, access, address, size, value, data):
if DEBUG and address <= 0x14000000:
#if DEBUG and address <= 0x14000000:
if DEBUG:
print("Read at", hex(address), size, mu.mem_read(address, size))
def on_write(mu, access, address, size, value, data):
if DEBUG and address <= 0x14000000:
if address == 0xaaa and value == 0x98:
mu.mem_write(0x00000000, open("cfi_32mb.bin", "rb").read())
elif address == 0xaaa and value == 0x90:
mu.mem_write(0x00000000, b"\x01\x00\x7e\x22")
if DEBUG:
if address <= 0x14000000:
if address == 0xaaa and value == 0x98:
mu.mem_write(0x00000000, open("cfi_32mb.bin", "rb").read())
elif address == 0xaaa and value == 0x90:
mu.mem_write(0x00000000, b"\x01\x00\x7e\x22")
# mu.reg_write(0x)
print("Write at", hex(address), size, hex(value))
# if value == 0x98: