mq_timedsend

send a message to a message queue

sys_mq_timedsend_time32(mqd_t mqdes, const char *u_msg_ptr, unsigned int msg_len, unsigned int msg_prio, const struct old_timespec32 *u_abs_timeout)

register	value
`r7`	182, the syscall number
`a0`	mqd_t mqdes
`a1`	const char *u_msg_ptr
`a2`	unsigned int msg_len
`a3`	unsigned int msg_prio
`r4`	const struct old_timespec32 *u_abs_timeout
`a0`	the return value

Then run trap 0 to enter the kernel.

Same syscall on other architectures