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Lee Lup Yuen 2023-11-25 13:16:13 +08:00
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@ -3352,6 +3352,43 @@ bl602_attach: Test Interrupt Priority
test_interrupt_priority: before1=0, before2=0, after1=1, after2=1
```
Here's the Disassembly...
```text
0000000050200daa <test_interrupt_priority>:
test_interrupt_priority():
/Users/Luppy/ox64/nuttx/arch/risc-v/src/chip/bl602_serial.c:451
uint32_t before1 = *(volatile uint32_t *) 0xe0000050;
50200daa: 461d li a2,7
50200dac: 0676 slli a2,a2,0x1d
/Users/Luppy/ox64/nuttx/arch/risc-v/src/chip/bl602_serial.c:454
*(volatile uint32_t *) 0xe0000050 = 1;
50200dae: 4785 li a5,1
/Users/Luppy/ox64/nuttx/arch/risc-v/src/chip/bl602_serial.c:451
uint32_t before1 = *(volatile uint32_t *) 0xe0000050;
50200db0: 4a34 lw a3,80(a2)
/Users/Luppy/ox64/nuttx/arch/risc-v/src/chip/bl602_serial.c:452
uint32_t before2 = *(volatile uint32_t *) 0xe0000054;
50200db2: 4a78 lw a4,84(a2)
/Users/Luppy/ox64/nuttx/arch/risc-v/src/chip/bl602_serial.c:454
*(volatile uint32_t *) 0xe0000050 = 1;
50200db4: ca3c sw a5,80(a2)
/Users/Luppy/ox64/nuttx/arch/risc-v/src/chip/bl602_serial.c:457
uint32_t after1 = *(volatile uint32_t *) 0xe0000050;
50200db6: 4a3c lw a5,80(a2)
/Users/Luppy/ox64/nuttx/arch/risc-v/src/chip/bl602_serial.c:458
uint32_t after2 = *(volatile uint32_t *) 0xe0000054;
50200db8: 05462803 lw a6,84(a2)
```
TODO: Try sfence
# Documentation for Ox64 BL808
![Pine64 Ox64 64-bit RISC-V SBC (Sorry for my substandard soldering)](https://lupyuen.github.io/images/ox64-solder.jpg)