3 ms·
Good question. I took a look. What is being released is the Release 6 ISA. And I stand corrected, according to wikipedia that ISA doesn't have delay slots: MIP
by JoachimS 8y ago
Good question. I took a look. What is being released is the Release 6 ISA. And I stand corrected, according to wikipedia that ISA doesn't have delay slots:
MIPS32/MIPS64 Release 6 in 2014 added[22] the following:
a new family of branches with no delay slot:
unconditional branches (BC) and branch-and-link (BALC) with a 26-bit offset,
conditional branch on zero/non-zero with a 21-bit offset,
full set of signed and unsigned conditional branches compare between two registers (e.g. BGTUC) or a register against zero (e.g. BGTZC),
full set of branch-and-link which compare a register against zero (e.g. BGTZALC).
index jump instructions with no delay slot designed to support large absolute addresses.
instructions to load 16-bit immediates at bit position 16, 32 or 48, allowing to easily generate large constants.
PC-relative load instructions, as well as address generation with large (PC-relative) offsets.
bit-reversal and byte-alignment instructions (previously only available with the DSP extension).
multiply and divide instructions redefined so that they use a single register for their result).
instructions generating truth values now generate all zeroes or all ones instead of just clearing/setting the 0-bit,
instructions using a truth value now only interpret all-zeroes as false instead of just looking at the 0-bit.
Removed infrequently used instructions:
some conditional moves
branch likely instructions (deprecated in previous releases).
integer overflow trapping instructions with 16-bit immediate
integer accumulator instructions (together HI/LO registers, moved to the DSP Application-Specific Extension)
unaligned load instructions (LWL and LWR), (requiring that most ordinary loads and stores support misaligned access, possibly via trapping and with the addition of a new instruction (BALIGN))
Reorganized the instruction encoding, freeing space for future expansions.
https://en.wikipedia.org/wiki/MIPS_architecture#MIPS32/MIPS64_Release_6 https://en.wikipedia.org/wiki/MIPS_architecture#MIPS32/MIPS6...