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The Auxiliary Carry flag is set (to 1) if during an "add" operation there is a carry from the low nibble (lowest four bits) to the high nibble (upper four bits), or a borrow from the high nibble to the low nibble, in the low-order 8-bit portion, during a subtraction. Otherwise, if no such carry or borrow occurs, the flag is cleared or "reset ...
The Zilog Z80 is an 8-bit microprocessor designed by Zilog that played an important role in the evolution of early computing. Launched in 1976, it was designed to be software-compatible with the Intel 8080, offering a compelling alternative due to its better integration and increased performance.
The carry flag is set according to this addition, and subtract with carry computes a+not(b)+C, while subtract without carry acts as if the carry bit were set. The result is that the carry bit is set if a≥b, and clear if a<b. The System/360, [3] ARM, POWER/PowerPC, 6502, MSP430, COP8, Am29000, i960, and 88000 processors use this convention.
Pages in category "Z80-based home computers" The following 92 pages are in this category, out of 92 total. This list may not reflect recent changes. A. ABC 80;
Z80-based home computers (5 C, 92 P) Pages in category "Z80-based computers" The following 11 pages are in this category, out of 11 total.
Commodore 64 (with Z80 plug-in cartridge) [6] Commodore 128 (using its internal Z80 processor—along with its 8502—ran CP/M+ which supported memory paging) Compaq Portable - was available with CP/M as a factory installed option. Compis; Compupro; Cromemco; C't180 HD64180 ECB-System (CP/M2.2 & 3.x) Cub-Z - Romanian made computer
The HD64180 is a Z80-based embedded microprocessor developed by Hitachi with an integrated memory management unit (MMU) and on-chip peripherals. [1] It appeared in 1985. [2] The Hitachi HD64180 "Super Z80" was later licensed to Zilog and sold by them as the Z64180 and with some enhancements as the Zilog Z180.
The Dick Smith Super-80 was a Zilog Z80 based kit computer developed as a joint venture between Electronics Australia magazine and Dick Smith Electronics.. It was presented as a series of construction articles in Electronics Australia magazine's August, September and October 1981 issues.