"Because this was the first of its kind," he said softly. "The 8086 introduced the instruction queue. The prefetch queue. It had six bytes of instruction cache before 'cache' was a buzzword. It was the bridge between the old world of 8-bit simplicity and the new world of complexity. It has segmentation—a weird, clunky way of addressing memory that annoyed everyone, but it allowed it to address a whole megabyte of RAM. A megabyte , kid. In 1978, that was the universe."
"Watch the bus," Silas said.
On page 22 of the original 1978 datasheet, a table delineates the two operating modes: 8086 datasheet
Contains the 16-bit offset of the next instruction. "Because this was the first of its kind," he said softly
"The buffer is fried," Silas corrected. "The datasheet tells you the electrical characteristics. Input high voltage needs to be at least 2.0 volts. You’re giving it noise. The 8086 is a purist. It won't budge until it sees a clean signal." It had six bytes of instruction cache before
"Because this was the first of its kind," he said softly. "The 8086 introduced the instruction queue. The prefetch queue. It had six bytes of instruction cache before 'cache' was a buzzword. It was the bridge between the old world of 8-bit simplicity and the new world of complexity. It has segmentation—a weird, clunky way of addressing memory that annoyed everyone, but it allowed it to address a whole megabyte of RAM. A megabyte , kid. In 1978, that was the universe."
"Watch the bus," Silas said.
On page 22 of the original 1978 datasheet, a table delineates the two operating modes:
Contains the 16-bit offset of the next instruction.
"The buffer is fried," Silas corrected. "The datasheet tells you the electrical characteristics. Input high voltage needs to be at least 2.0 volts. You’re giving it noise. The 8086 is a purist. It won't budge until it sees a clean signal."