What is FLD in assembly?
The fld instruction sets the stack fault bit if stack overflow occurs. It sets the the denormalized exception bit if you load an 80 bit denormalized value. It sets the invalid operation bit if you attempt to load an empty floating point register onto the stop of stack (or perform some other invalid operation).
What does fstp do?
The FSTP instruction performs the same operation as the FST instruction and then pops the register stack. To pop the register stack, the processor marks the ST(0) register as empty and increments the stack pointer (TOP) by 1. The FSTP instruction can also store values in memory in extended-real format.
What is FLDZ instruction?
FLDZ. Push +0.0 onto the FPU register stack. Description. Push one of seven commonly used constants (in double extended-precision floating-point format) onto the FPU register stack. The constants that can be loaded with these instructions include +1.0, +0.0, log_10(2), log_e(2), pi, log_2(10), and log_2(e).
What are FPU instructions?
FPU instructions generally will pop the first two items off the stack, act on them, and push the answer back on to the top of the stack. Floating point numbers may generally be either 32 bits long, the float data type in the programming language C, or 64 bits long, double in C.
What is FPU stack?
The most important registers in the FPU are a stack of eight extended floating point numbers. One of the registers is designated as the top of the stack (ST0) and all other registers are relative to it: ST1, ST2. Data is pushed on the stack with a load. Data is taken off the stack with a store.
What is Fmul in assembly language?
The FMUL instruction multiplies the values in Fn and Fm and places the result in Fd .
What is a 8086 microprocessor?
8086 Microprocessor is an enhanced version of 8085Microprocessor that was designed by Intel in 1976. It is a 16-bit Microprocessor having 20 address lines and16 data lines that provides up to 1MB storage. It consists of powerful instruction set, which provides operations like multiplication and division easily.
What is MMX technology?
MMX is a Pentium microprocessor from Intel that is designed to run faster when playing multimedia applications. According to Intel, a PC with an MMX microprocessor runs a multimedia application up to 60% faster than one with a microprocessor having the same clock speed but without MMX.
What is XMM register?
XMM registers, instead, are a completely separate registers set, introduced with SSE and still widely used to this day. They are 128 bit wide, with instructions that can treat them as arrays of 64, 32 (integer and floating point),16 or 8 bit (integer only) values. You have 8 of them in 32 bit mode, 16 in 64 bit.
What is Dmips Mhz?
Answer. Dhrystone MIPS (Million Instructions per Second), or DMIPS, is a measure of computer performance relative to the performance of the DEC VAX 11/780 minicomputer of the 1970s.