2020-05-30 14:42:07 +00:00
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.section .text
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.global Reset_Handler
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Reset_Handler:
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mv x1, x0
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mv x2, x1
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mv x3, x1
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mv x4, x1
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mv x5, x1
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mv x6, x1
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mv x7, x1
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mv x8, x1
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mv x9, x1
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mv x10, x1
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mv x11, x1
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mv x12, x1
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mv x13, x1
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mv x14, x1
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mv x15, x1
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mv x16, x1
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mv x17, x1
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mv x18, x1
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mv x19, x1
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mv x20, x1
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mv x21, x1
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mv x22, x1
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mv x23, x1
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mv x24, x1
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mv x25, x1
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mv x26, x1
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mv x27, x1
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mv x28, x1
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mv x29, x1
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mv x30, x1
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mv x31, x1
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.option push
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.option norelax
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la gp, __global_pointer$
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.option pop
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la sp, _estack
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la x25, _sidata
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la x26, _sdata
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la x27, _edata
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bge x26, x27, copy_data_end
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copy_data:
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lw x24, 0(x25)
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sw x24, 0(x26)
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addi x25, x25, 4
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addi x26, x26, 4
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2020-05-31 07:49:49 +00:00
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blt x26, x27, copy_data
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2020-05-30 14:42:07 +00:00
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copy_data_end:
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/* Zero .bss section */
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la x26, _sbss
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la x27, _ebss
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bge x26, x27, zero_bss_end
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zero_bss:
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sw x0, 0(x26)
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addi x26, x26, 4
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2020-05-31 07:49:49 +00:00
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blt x26, x27, zero_bss
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2020-05-30 14:42:07 +00:00
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zero_bss_end:
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jal x1, System_Init
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addi x10, x0, 0
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addi x11, x0, 0
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jal x1, main
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inf_loop:
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jal x0, inf_loop
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Default_IRQHandler:
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jal x0, Generic_ExceptionCallback
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Timer_IRQHandler:
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jal x0, Generic_TimerCallback
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2020-06-02 13:34:58 +00:00
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Trap_Handler:
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jal x0, Generic_TrapCallback
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2020-05-30 14:42:07 +00:00
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/* ISR vector table */
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.section .isr_vectors, "ax"
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.option norvc;
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.org 0x00
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2020-06-02 13:34:58 +00:00
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jal x0, Trap_Handler /* Trap IRQ (IRQ 0) */
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jal x0, Default_IRQHandler /* IRQ 1 */
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jal x0, Default_IRQHandler /* IRQ 2 */
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jal x0, Default_IRQHandler /* IRQ 3 */
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jal x0, Default_IRQHandler /* IRQ 4 */
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jal x0, Default_IRQHandler /* IRQ 5 */
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jal x0, Default_IRQHandler /* IRQ 6 */
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jal x0, Timer_IRQHandler /* Timer IRQ (IRQ 7) */
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jal x0, Default_IRQHandler /* IRQ 8 */
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jal x0, Default_IRQHandler /* IRQ 9 */
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jal x0, Default_IRQHandler /* IRQ 10 */
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jal x0, Default_IRQHandler /* External IRQ (IRQ 11) */
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jal x0, Default_IRQHandler /* IRQ 12 */
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jal x0, Default_IRQHandler /* IRQ 13 */
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jal x0, Default_IRQHandler /* IRQ 14 */
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jal x0, Default_IRQHandler /* IRQ 15 */
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jal x0, Default_IRQHandler /* Fast IRQ 0 (IRQ 16) */
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jal x0, Default_IRQHandler /* Fast IRQ 1 (IRQ 17) */
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jal x0, Default_IRQHandler /* Fast IRQ 2 (IRQ 18) */
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jal x0, Default_IRQHandler /* Fast IRQ 3 (IRQ 19) */
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jal x0, Default_IRQHandler /* Fast IRQ 4 (IRQ 20) */
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jal x0, Default_IRQHandler /* Fast IRQ 5 (IRQ 21) */
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jal x0, Default_IRQHandler /* Fast IRQ 6 (IRQ 22) */
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jal x0, Default_IRQHandler /* Fast IRQ 7 (IRQ 23) */
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jal x0, Default_IRQHandler /* Fast IRQ 8 (IRQ 24) */
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jal x0, Default_IRQHandler /* Fast IRQ 9 (IRQ 25) */
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jal x0, Default_IRQHandler /* Fast IRQ 10 (IRQ 26) */
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jal x0, Default_IRQHandler /* Fast IRQ 11 (IRQ 27) */
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jal x0, Default_IRQHandler /* Fast IRQ 12 (IRQ 28) */
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jal x0, Default_IRQHandler /* Fast IRQ 13 (IRQ 29) */
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jal x0, Default_IRQHandler /* Fast IRQ 14 (IRQ 30) */
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jal x0, NMI_Handler /* Non-Maskable IRQ (IRQ 31) */
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2020-05-30 14:42:07 +00:00
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jal x0, Reset_Handler
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