Files
2014-04-09 15:49:39 +00:00

112 lines
2.4 KiB
Systemverilog

`ifndef SIMDRV_DEFS_SV
`define SIMDRV_DEFS_SV 1
typedef longint unsigned uint64_t;
typedef int unsigned uint32_t;
typedef shortint unsigned uint16_t;
typedef uint64_t u64_array_t[];
typedef byte byte_array_t[];
virtual class CBusAccessor;
static int _null = 0;
int m_default_xfer_size;
task set_default_xfer_size(int default_size);
m_default_xfer_size = default_size;
endtask // set_default_xfer_size
pure virtual task writem(uint64_t addr[], uint64_t data[], input int size, ref int result);
pure virtual task readm(uint64_t addr[], ref uint64_t data[], input int size, ref int result);
virtual task read(uint64_t addr, ref uint64_t data, input int size = m_default_xfer_size, ref int result = _null);
int res;
uint64_t aa[1], da[];
da= new[1];
aa[0] = addr;
readm(aa, da, size, res);
data = da[0];
endtask
virtual task write(uint64_t addr, uint64_t data, input int size = m_default_xfer_size, ref int result = _null);
uint64_t aa[1], da[1];
aa[0] = addr;
da[0] = data;
writem(aa, da, size, result);
endtask
endclass // CBusAccessor
class CSimUtils;
static function automatic u64_array_t pack(byte x[], int size, int big_endian = 1);
u64_array_t tmp;
int i, j;
int nwords, nbytes;
nwords = (x.size() + size - 1) / size;
tmp = new [nwords];
for(i=0;i<nwords;i++)
begin
uint64_t d;
d =0;
nbytes = (x.size() - i * nbytes > size ? size : x.size() - i*nbytes);
for(j=0;j<nbytes;j++)
begin
if(big_endian)
d = d | ((x[i*size+j] << (8*(size-1-j))));
else
d = d | ((x[i*size+j] << (8*j)));
end
tmp[i] = d;
end
return tmp;
endfunction // pack
static function automatic byte_array_t unpack(u64_array_t x, int entry_size, int size, int big_endian = 1);
byte_array_t tmp;
int i, n;
tmp = new[size];
n = 0;
i = 0;
while(n < size)
begin
tmp[n] = x[i] >> (8*(entry_size-1 - (n % entry_size)));
n++;
if(n % entry_size == 0)
i++;
end
return tmp;
endfunction // unpack
endclass // CSimUtils
static CSimUtils SimUtils;
`endif