#!/bin/sh

set -e

WORKDIR=$(mktemp -d)
trap "rm -rf $WORKDIR" 0 INT QUIT ABRT PIPE TERM
cd $WORKDIR
cat <<EOF > sum2vars.c

// sum2vars.c

int var_a = 0x1234;
int var_b = 0x5678;

int var_c = 0x0000;

int main()
{
  var_c = var_a + var_b;
  var_a = var_c + var_b;

  return 0;
}

EOF

cat <<EOF > start.S 

.globl   _start
.text
.option norelax

_start:
     la x2, _end+0x4000
     la x3, __global_pointer$
     jal  main
     ebreak
EOF

# build sum2vars.o

riscv64-unknown-elf-gcc -march=rv32i -mabi=ilp32 -nostdlib -c sum2vars.c -o sum2vars.o
riscv64-unknown-elf-gcc -march=rv32i -mabi=ilp32 -nostdlib -c start.S -o start.o
riscv64-unknown-elf-gcc -march=rv32i -mabi=ilp32 -nostdlib sum2vars.o start.o -o sum2vars-riscv -lgcc

qtrvsim_cli sum2vars-riscv

