benchmarks/common/crt-mt.S

   1 #include "encoding.h"
   2
   3   .data
   4   .globl _heapend
   5   .globl environ
   6 _heapend:
   7   .word 0
   8 environ:
   9   .word 0
  10
  11   .text
  12   .globl _start
  13
  14 _start:
  15   li  x1, 0
  16   li  x2, 0
  17   li  x3, 0
  18   li  x4, 0
  19   li  x5, 0
  20   li  x6, 0
  21   li  x7, 0
  22   li  x8, 0
  23   li  x9, 0
  24   li  x10,0
  25   li  x11,0
  26   li  x12,0
  27   li  x13,0
  28   li  x14,0
  29   li  x15,0
  30   li  x16,0
  31   li  x17,0
  32   li  x18,0
  33   li  x19,0
  34   li  x20,0
  35   li  x21,0
  36   li  x22,0
  37   li  x23,0
  38   li  x24,0
  39   li  x25,0
  40   li  x26,0
  41   li  x27,0
  42   li  x28,0
  43   li  x29,0
  44   li  x30,0
  45   li  x31,0
  46
  47   # enable fp and accelerator
  48   li a0, SR_EF | SR_EA
  49   csrs status, a0
  50
  51   ## if that didn't stick, we don't have an FPU, so don't initialize it
  52   csrr t0, status
  53   and t0, t0, SR_EF
  54   beqz t0, 1f
  55
  56   fssr    x0
  57   fmv.s.x f0, x0
  58   fmv.s.x f1, x0
  59   fmv.s.x f2, x0
  60   fmv.s.x f3, x0
  61   fmv.s.x f4, x0
  62   fmv.s.x f5, x0
  63   fmv.s.x f6, x0
  64   fmv.s.x f7, x0
  65   fmv.s.x f8, x0
  66   fmv.s.x f9, x0
  67   fmv.s.x f10,x0
  68   fmv.s.x f11,x0
  69   fmv.s.x f12,x0
  70   fmv.s.x f13,x0
  71   fmv.s.x f14,x0
  72   fmv.s.x f15,x0
  73   fmv.s.x f16,x0
  74   fmv.s.x f17,x0
  75   fmv.s.x f18,x0
  76   fmv.s.x f19,x0
  77   fmv.s.x f20,x0
  78   fmv.s.x f21,x0
  79   fmv.s.x f22,x0
  80   fmv.s.x f23,x0
  81   fmv.s.x f24,x0
  82   fmv.s.x f25,x0
  83   fmv.s.x f26,x0
  84   fmv.s.x f27,x0
  85   fmv.s.x f28,x0
  86   fmv.s.x f29,x0
  87   fmv.s.x f30,x0
  88   fmv.s.x f31,x0
  89 1:
  90
  91
  92   # get core id and number of cores
  93   csrr a0, hartid
  94   lw a1, 4(zero)
  95
  96   slli a2, a0, 13
  97   la sp, stacktop
  98   sub sp, sp, a2
  99
 100   la tp, tlstop
 101   sub tp, tp, a2
 102
 103   jal thread_entry
 104
 105   .bss
 106   .globl stacktop
 107   .globl tlstop
 108
 109   .align 4
 110   .skip 32768
 111 stacktop:
 112   .skip 65536
 113 tlstop: