static bool
test_fuzz_compact_instruction(struct brw_compile *p, brw_inst src)
{
for (int bit0 = 0; bit0 < 128; bit0++) {
if (skip_bit(p->brw, &src, bit0))
continue;
for (int bit1 = 0; bit1 < 128; bit1++) {
brw_inst instr = src;
uint32_t *bits = (uint32_t *)&instr;
if (skip_bit(p->brw, &src, bit1))
continue;
bits[bit0 / 32] ^= (1 << (bit0 & 31));
bits[bit1 / 32] ^= (1 << (bit1 & 31));
clear_pad_bits(p->brw, &instr);
if (!test_compact_instruction(p, instr)) {
printf(" twiddled bits for fuzzing %d, %d\n", bit0, bit1);
return false;
}
}
}
return true;
}
static bool
test_fuzz_compact_instruction(struct brw_codegen *p, brw_inst src)
{
for (int bit0 = 0; bit0 < 128; bit0++) {
if (skip_bit(p->devinfo, &src, bit0))
continue;
for (int bit1 = 0; bit1 < 128; bit1++) {
brw_inst instr = src;
uint64_t *bits = instr.data;
if (skip_bit(p->devinfo, &src, bit1))
continue;
bits[bit0 / 64] ^= (1ull << (bit0 & 63));
bits[bit1 / 64] ^= (1ull << (bit1 & 63));
clear_pad_bits(p->devinfo, &instr);
if (!test_compact_instruction(p, instr)) {
printf(" twiddled bits for fuzzing %d, %d\n", bit0, bit1);
return false;
}
}
}
return true;
}
static void write_digit(unsigned char seg, unsigned char data, unsigned char erase, unsigned char skip)
{
static const unsigned char delete_order[7]={SEG_U,SEG_UR,SEG_UL,SEG_M,SEG_OR,SEG_OL,SEG_O};
static const unsigned char set_order[7]={SEG_O,SEG_OR,SEG_UR,SEG_U,SEG_UL,SEG_OL,SEG_M};
unsigned char i;
if ((skip & SEG_ALL) != SEG_ALL)
{
SET_STROBE;
WAIT_FULL(DATA_DELAY);
// pump data
for (i=0x80; i; i>>=1)
{
shift_bit(data&i);
}
// pump address
for (i=0x80; i; i>>=1)
{
shift_bit(seg&i);
}
CLR_STROBE; // falling strobe, latch data
WAIT_HALF(DATA_DELAY);
CLR_CLK;
WAIT_HALF(DATA_DELAY);
// enable segments??
if (erase)
{
CLR_DATA;
for (i=0; i<7; i++)
{
if (skip&delete_order[i])
{
skip_bit();
}
else
{
shift_mech();
}
}
}
else
{
SET_DATA;
for (i=0; i<7; i++)
{
if (skip&set_order[i])
{
skip_bit();
}
else
{
shift_mech();
}
}
}
SET_CLK;
}