Table of Contents
What is a MIPS register?
The MIPS (and SPIM) central processing unit contains 32 general purpose 32-bit registers that are numbered 0-31. Register is designated by $n. Register $0 always contains the hardwired value 0. MIPS has established a set of conventions as to how registers should be used.
What is SLT MIPS?
The SLT instruction sets the destination register’s content to the value 1 if the first source register’s contents are. less than the second source register’s contents. Otherwise, it is set to the value 0.
What is BGT in assembly language?
Table of Branch Instructions
| Mnemonic | Operands | Description |
|---|---|---|
| bgt | s,t,label | branch if s>t |
| bgtz | s,label | branch if s>0 |
| bleu | s,t,label | branch if s<=t |
| blt | s,t,label | branch if s |
What are 32-bit general purpose registers?
General-Purpose Registers. The EAX, EDX, ECX, EBX, EBP, EDI, and ESI registers are 32-bit general-purpose registers, used for temporary data storage and memory access. The AX, DX, CX, BX, BP, DI, and SI registers are 16-bit equivalents of the above, they represent the low-order 16 bits of 32-bit registers.
What is LB code?
The lb instruction loads a byte from memory and sign extends to the size of the register. The lbu instruction does the same without sign extension (unsigned).
Is SLT an R type?
All R-type instructions use a 000000 opcode….
| Instruction | Function | |
|---|---|---|
| slt | rd, rs, rt | 101010 |
| sltu | rd, rs, rt | 101011 |
| sra | rd, rt, sa | 000011 |
| srav | rd, rt, rs | 000111 |
What is BNE MIPS?
BNE means Branch on Not Equal.
What is BNE and BEQ?
beq (branch if equal) branches when the values in the two source registers are equal. bne (branch if not equal) branches when they are unequal.
Why is MIPS 32 registers?
The MIPS architecture allows 5 bits to specify each of those registers, and 32 is the maximum number you can represent with five bits, so there is no point giving you more registers that you can’t access.
What are the IA 32 processor’s three basic modes of operation?
The 1A32 processor has three operating modes:
- Real-address mode. This mode lets the processor to address “real” memory address.
- Protected mode. This is the preferred mode for a modern operating system.
- System management mode. This mode is designed for fast state snapshot and resumption.
How many general-purpose 32-bit registers are found in the 80×86 CPU?
8 general-purpose registers
There are 8 general-purpose registers in the 8086 microprocessor. 5. SP: This is the stack pointer.