| ▲ | dboreham 11 hours ago | ||||||||||||||||
Until I read this I did not know that 1970s microprocessors had register renaming. Feel a little cheated, thinking for all those years that they were actually moving the bits. | |||||||||||||||||
| ▲ | dapperdrake 6 hours ago | parent | next [-] | ||||||||||||||||
If you work through a math problem with pen and paper or nand2tetris or nandgame.com then it becomes obvious that changing indexes into a register file (a.k.a. pointers) are way faster and easier than wires to move stuff around. | |||||||||||||||||
| ▲ | peterfirefly 9 hours ago | parent | prev | next [-] | ||||||||||||||||
How do you think the EXX and EX AF,AF' instructions work on the Z80? | |||||||||||||||||
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| ▲ | kens 7 hours ago | parent | prev [-] | ||||||||||||||||
If you feel cheated now, wait until you find out that the ALU in the 8-bit Z80 was just 4 bits. :-) | |||||||||||||||||
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