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# qemu -kernel starts at 0x1000. the instructions
# there seem to be provided by qemu, as if it
# were a ROM. the code at 0x1000 jumps to
# 0x8000000, the _start function here,
# in machine mode.
.section .data
.globl stack0
.section .text
.globl mstart
.section .text
.globl _entry
_entry:
# set up a stack for C.
# stack0 is declared in start,
# with 4096 bytes per CPU.
la sp, stack0
li a0, 1024*4
csrr a1, mhartid
addi a1, a1, 1
mul a0, a0, a1
add sp, sp, a0
# jump to mstart() in start.c
call mstart
junk:
j junk
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