rt-thread/bsp/bouffalo_lab/bl60x/board/trap_gcc.S

17 lines
357 B
ArmAsm
Executable File

#include "cpuport.h"
.globl rt_hw_do_after_save_above
.type rt_hw_do_after_save_above,@function
rt_hw_do_after_save_above:
addi sp, sp, -4
STORE ra, 0 * REGBYTES(sp)
csrr t1, mcause
andi t1, t1, 0x3FF
/* get ISR */
la t2, interrupt_entry
jalr t2
LOAD ra, 0 * REGBYTES(sp)
addi sp, sp, 4
ret