Serotonin syndrome/toxicity - reminder. Serotonin syndrome, more correctly termed serotonin toxicity, is a set of predictable type A dose dependent adverse reactions caused by increased intra-synaptic/extracellular serotonin.
The size of this segment is determined by the size of the values in the program's source code, and does not change at run time. The data segment is read-write, since the values of variables can be altered at run time.he .data segment contains any global or static variables which have a pre-defined value and can be modified. That is any variables that are not defined within a function (and thus can be accessed from anywhere) or are defined in a function but are defined as static so they retain their value across subsequent calls.
The main purpose of a CPU is to execute instructions. We've already seen some simple examples of instructions, i.e., add and addi. The CPU executes the binary representation of the instructions, i.e., machine code.Since programs can be very large, and since CPUs have limited memory, programs are stored in memory (RAM).o fetch an instruction involves the following steps: 1  CPU must place an address to the MAR. 2  CPU must activate the tri-state buffer so MAR contents are placed on the address bus. 3  CPU sends R/\W = 1 and CE = 1 to memory, to indicate it wants to do a read. 4  Memory eventually puts instruction on the data bus.