mirror of
https://github.com/openhwgroup/cvw
synced 2025-02-11 06:05:49 +00:00
60 lines
756 B
ArmAsm
60 lines
756 B
ArmAsm
.section .init
|
|
.global _start
|
|
.type _start, @function
|
|
|
|
_start:
|
|
# Initialize global pointer
|
|
.option push
|
|
.option norelax
|
|
1:auipc gp, %pcrel_hi(__global_pointer$)
|
|
addi gp, gp, %pcrel_lo(1b)
|
|
.option pop
|
|
|
|
li x1, 0
|
|
li x2, 0
|
|
li x4, 0
|
|
li x5, 0
|
|
li x6, 0
|
|
li x7, 0
|
|
li x8, 0
|
|
li x9, 0
|
|
li x10, 0
|
|
li x11, 0
|
|
li x12, 0
|
|
li x13, 0
|
|
li x14, 0
|
|
li x15, 0
|
|
li x16, 0
|
|
li x17, 0
|
|
li x18, 0
|
|
li x19, 0
|
|
li x20, 0
|
|
li x21, 0
|
|
li x22, 0
|
|
li x23, 0
|
|
li x24, 0
|
|
li x25, 0
|
|
li x26, 0
|
|
li x27, 0
|
|
li x28, 0
|
|
li x29, 0
|
|
li x30, 0
|
|
li x31, 0
|
|
|
|
|
|
|
|
# set the stack pointer to the top of memory - 8 bytes (pointer size)
|
|
li sp, 0x07FFFFF8
|
|
|
|
jal ra, pre_main
|
|
jal ra, _halt
|
|
|
|
.section .text
|
|
.global _halt
|
|
.type _halt, @function
|
|
_halt:
|
|
li gp, 1
|
|
li a0, 0
|
|
ecall
|
|
j _halt
|