static tU08 transferByte_U08(tU08 data_U08, tU08 instruction_U08)
{
tU08 i_U08;
tU08 byteRead_U08 = 0;
/* first bit is zero */
SDI_LO;
SII_LO;
clockit();
for (i_U08 = 0; i_U08 < 8; i_U08++)
{
/* read one bit form SDO */
byteRead_U08 <<= 1; // shift one bit, this clears LSB
if (GET_STATUS(COIO_SDO_CFG) != 0)
{
byteRead_U08 |= 1;
}
/* output next data bit on SDI */
if (data_U08 & 0x80)
{
SDI_HI;
}
else
{
SDI_LO;
}
/* output next instruction bit on SII */
if (instruction_U08 & 0x80)
{
SII_HI;
}
else
{
SII_LO;
}
clockit();
/* prepare for processing next bit */
data_U08 <<= 1;
instruction_U08 <<= 1;
}
/* Last two bits are zero */
SDI_LO;
SII_LO;
clockit();
clockit();
return byteRead_U08;
}
int main (int argc, char *argv[]) {
topp = new VM_PREFIX;
topp->check = 0;
clockit(0,0);
Verilated::debug(0);
for (int i = 0; i < 2; i++) {
clockit(0, 0);
clockit(0, 1);
clockit(1, 1);
clockit(0, 0);
clockit(1, 1);
clockit(1, 0);
clockit(0, 0);
}
topp->check = 1;
clockit(0,0);
}
