Z80 Z80 Programming tips and code fragments
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Bit and flag manipulation
BitManip Copying, clearing and setting bits
Conversions and calculations
SqRootTest (L
Calculate integer Square Root
Integer Square Root BASIC source and test code
Multiply8  8-bit constant multiply code
Multiply16  16-bit constant multiply code
DofWeek (L)
Calculating day of week for 1900-2155
Calls and Jumps
CallHL Code for CALL (HL) and LD HL,PC
Indirect Indirect jumps and calls
Z80IM2  Using Z80 Interupt Mode 2
Displaying numbers
PrNumber Printing 8-bit numbers in hex and decimal
CRC calculation
CRC-8 Calculating 8-bit CRCs
CRC16  Calculating 16-bit CRCs for XMODEM and Acorn CFS/RFS
CRC32  Calculating 32-bit CRCs for ZIP files
Assembler hints and tips
AsmDate  Assembling date strings
Programs and tools
BBCBasic  BBC BASIC for the Z80
DisAssem  BBC BASIC Z80 disassembler
ZMac  ZMac Z80 assembler

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Last update: 26-Jun-2011