www/notes/zilog-z80.md

# Zilog Z80 Microprocessor
<table>
	<tr>
		<td>Name</td>
		<td>Z80</td>
	</tr>
	<tr>
		<td>Introduced</td>
		<td>1976</td>
	</tr>
	<tr>
		<td>Data Width</td>
		<td>8-bit</td>
	</tr>
	<tr>
		<td>Address Width</td>
		<td>16-bit</td>
	</tr>
	<tr>
		<td>Binary Comp.</td>
		<td>8080A</td>
	</tr>
	<tr>
		<td>Endianness</td>
		<td>Little</td>
	</tr>
	<tr>
		<td>Registers</td>
		<td>208 bits (18 &times; 8-bit + 4 &times; 16-bit) - Static RAM</td>
	</tr>
	<tr>
		<td>Package</td>
		<td>40-pin DIP</td>
	</tr>
	<tr>
		<td>Instruction Count</td>
	<td>158</td>
	</tr>
</table>

## Docs
- [z80.info: User Manual](http://z80.info/zip/z80cpu_um.pdf)

## Addressing Modes
- Immediate
- Immediate Extended
- Modified Page Zero 
- Relative
- Extended
- Indexed Addressing
- Register
- Implied
- Register Indirect
- Bit

## Notable Usage (includes variants)
- Home Computers
- TI Calculators
- Musical Equipment