Operator Registers; bitwise math operators
A library of useful classes used to perform logical or bitwise
math on or between other registers. The classes implemented here
include NotRegister, LeftShiftRegister, RightShiftRegister,
AndRegister, OrRegister, and ConstantRegister.
Accompanied with other Register classes and the getBitString()
function, it is possible to perform operations like:
AndRegister reg{<register1>,<register2>};
result = reg.getBitString(<someChip>);
This example will return a BitString containing the result of the
bitwise AND operation applied to register1 and register2.
Signed-off-by: Paul Greenwood <Paul.Greenwood@ibm.com>
Change-Id: I660c540bde1c02520962524b9ffb5fa7faf1d86f
diff --git a/src/register/hei_register.hpp b/src/register/hei_register.hpp
index d3435a3..ff8999c 100644
--- a/src/register/hei_register.hpp
+++ b/src/register/hei_register.hpp
@@ -15,15 +15,14 @@
creates a place where these registers can be put together like logical
building blocks. For example, Register makes this possible:
-Register * fir = new HardwareRegister(REG_ADDRESS, REG_WIDTH,
- CHIP_TYPE, ACCESS_RO);
-Register * mask = new ConstantRegister(0xffffffff00000000);
-Register * fir_mask = new AndRegister(fir, mask);
+Register * mask1 = new ConstantRegister(0xffff000000000000);
+Register * mask2 = new ConstantRegister(0xffffffff00000000);
+Register * fir_mask = new AndRegister(mask1, mask2);
const BitString * bs = fir_mask->getBitString(chip);
The getBitString function (defined by each register) provides access to
the BitString that manages each register's data. In this example bs will
-contain the result of fir & mask.
+contain the result of mask1 & mask2.
*/
class Register
{