Term
| Register that controls current state of the machine |
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| register that indicates state of operation(error, overflow, etc) |
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| register that holds address of memory location currently referenced |
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| MAR (memory address register) |
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| register that holds data being sent to or retreived from the memory address in the MAR |
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| MDR(memory data register) |
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| register that holds memory address of next instruction |
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| register that holds current machine instruction |
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| IR (instruction register) |
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| registers for calculations and comparisons |
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| ALU (arithmetic logic unit) contains Operand_1, Operand_2, and Result |
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| Register used for fast temporary storage |
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| Broad class of computer architectures that use the stored program model |
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| type of register used for arithmatic and data movement |
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| register automatically used by multiplication and division instructions |
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| the cpu uses what register for a loop counter? |
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| Register that accesses data on the stack. Often called the "extended stack pointer register" |
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| Registers used for high speed memory transfer instructions. Sometimes called "extended source index" and extended destination index" registers |
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| Register used by high level languages to reference function paramters and local variables on the stack. Often called "extended frame pointer" register |
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| Type of 16b register that holds pointers to segment descriptor tables in protected mode |
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Term
| Register tRegister that consists of individual binary bits that control the operation of the CPU or reflect the outcome of some CPU operation |
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Term
| This reflects the outcomes of arithmetic and logical operations performed by the CPU |
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Term
| This flag is set when the result of an unsigned arithmetic operation is too large to fit into the destination |
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Term
| This flag is set when the result of a signed arithmetic operation is too large or too small to fit into the destination |
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Term
| This flag is set when the result of an arithmetic or logical operation generates a negative result |
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Term
| This flag is set when the result of an arithmetic or logical operation generates a result of 0 |
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Term
| This flag is set when an arithmetic operation causes a carry from bit 3 to bit 4 in an 8 bit operand |
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Term
| This flag is set if the least significant byte in the result contains an even number of 1 bits. Otherwise it is clear. In general, it is used for error checking when there is a possibility that data might be altered or corrupted. |
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Term
| This type of 64 bit register is designed to improve the performance of advanced multimedia and communications applications. |
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Definition
| MMX registers. They support SIMD instructions(single instuction, multiple data) |
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Term
| These 128 bit registers are used to stream SIMD extensions to the instruction set |
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Term
| This set of registers performs floating point arithmatic |
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Definition
| floating point unit (FPU) |
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Term
| How many floating point registers are there and what are they called? |
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Definition
| 8, ST(0), ST(1), ST(2), ST(3), ST(4), ST(5), ST(6), ST(7) |
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Term
| Made up of an optional leading sign, one or more digits, and an optional suffix character (radix) that indicates the number's base |
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Term
| What base is an integer constant assumed to be, if there is no radix? |
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Term
| A hexidecimal constant must be preceded with what to avoid being interpreted as an identifier? |
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| A command embedded in source code that is recognized by assembler but not executed at runtime. |
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| This directive tells the assembler to reserve space in the program for a doubleword variable |
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| This directive identifies the area of a program containing variables. |
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| This directive identifies the area of a program containing executable instructions |
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Term
| This directive identifies the area of a program holding the runtime stack, setting its size |
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Definition
| .STACK (eg: ".stack 100h") |
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Term
| Statement that becomes executable when a program is assembled |
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Term
| What are the four basic parts of an instruction? |
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Definition
| Label, Instruction mnemonic, Operand(s), Comment |
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Term
| Identifier that acts as a place marker for instructions and data |
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Term
| What does a label placed just before an instruction imply? |
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Definition
| the instruction's address |
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Term
| What does a label placed just before a variable imply? |
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Term
| Type of label that identifies the location of a variable, providing a convenient way to reference the variable in code |
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Definition
| data label(eg: "count DWORD 100") |
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Term
| A label in the code area of a program must end with what? |
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Term
| What do you call a short word that identifies an instruction? |
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Term
| Assembly language instructions have how many operands? |
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Definition
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Term
| How many types of operands? |
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Definition
| 4, Constant, constant expression, Register, Memory |
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Term
| In a two-operand instruction, the first operand is called what? |
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| Directive that marks the beginning or a procedure |
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| What procedure shows the output of all registers? |
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| What are the three main segments of a program? |
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Term
| What is the preferred capitalization style for keywords? |
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Definition
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Term
| What is the preferred capitalization style for constants? |
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Definition
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Term
| what is the preferred capitalization style for identifiers? |
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Term
| How many bytes is a DWord? |
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Definition
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Term
| What type of statement sets aside storage in memory for a variable? |
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Definition
data definition statement
eg: "count DWORD 12345" |
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Term
| All data definitions must have at least 1 what? |
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Term
| What is the exception to the rule that byte values must be separated by commas? |
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Term
| What operator allocates storage for multiple data items, using a constant expression as a counter? |
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Term
| What is created by associating an identifier with an integer expression or some text? |
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Definition
| a symbolic constant: does not reserve storage; used only by the assembler when scanning a program; cannot change at runtime. |
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Term
| What directive associates a symbol name with an integer expression |
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Term
| What character is used for the current location counter? It returns the offset associated with the current program statement. |
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Term
| What is the directive which associates a symbolic name with an integer expression or some arbitrary text? |
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| Which directive creates a text macro? |
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