#include "pcr.h"

  .data
  .globl _heapend
  .globl environ
_heapend:
  .word 0
environ:
  .word 0

  .text
  .globl _start

_start:
  li  x1, 0
  li  x2, 0
  li  x3, 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

  # enable fp
  setpcr status, SR_EF

  # enable vec
  setpcr t0, status, SR_EV

  ## if that didn't stick, we don't have an FPU, so don't initialize it
  and t0, t0, SR_EF
  beqz t0, 1f

  fssr    x0
  fmv.s.x f0, x0
  fmv.s.x f1, x0
  fmv.s.x f2, x0
  fmv.s.x f3, x0
  fmv.s.x f4, x0
  fmv.s.x f5, x0
  fmv.s.x f6, x0
  fmv.s.x f7, x0
  fmv.s.x f8, x0
  fmv.s.x f9, x0
  fmv.s.x f10,x0
  fmv.s.x f11,x0
  fmv.s.x f12,x0
  fmv.s.x f13,x0
  fmv.s.x f14,x0
  fmv.s.x f15,x0
  fmv.s.x f16,x0
  fmv.s.x f17,x0
  fmv.s.x f18,x0
  fmv.s.x f19,x0
  fmv.s.x f20,x0
  fmv.s.x f21,x0
  fmv.s.x f22,x0
  fmv.s.x f23,x0
  fmv.s.x f24,x0
  fmv.s.x f25,x0
  fmv.s.x f26,x0
  fmv.s.x f27,x0
  fmv.s.x f28,x0
  fmv.s.x f29,x0
  fmv.s.x f30,x0
  fmv.s.x f31,x0
1:


  # get core id and number of cores
  mfpcr a0,hartid
  lw a1, 4(zero)

  slli a2, a0, 13
  la sp, stacktop
  sub sp, sp, a2

  la tp, tlstop
  sub tp, tp, a2

  jal thread_entry

  .bss
  .globl stacktop
  .globl tlstop

  .align 4
  .skip 32768
stacktop:
  .skip 65536
tlstop: