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Virtual CPU with assembler tool chain, emulator and Forth compiler included
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Dominic Grimm 74dd36638f
Update presentation 		2023-04-05 14:41:53 +02:00
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README.md Update 2023-04-04 14:07:21 +02:00

README.md

hence

Virtual CPU with Assembler and Emulator and Forth compiler included.

Architecture

Memory mapping

Start End Name Description
0x0000 0x8000 PRG (Program) ROM of program binary
0x8000 0x9fff ST (Stack) RAM used as stack
0xa000 0xbfff MEM (Memory) Generic RAM
0xc000 OUT (Out) Writes value as decimal number to standard output when trying to be overwritten
0xc001 CHR (Char) Writes value as UTF-8 char to standard output when trying to be overwritten
0xc002 KEY (Key) Waits for key press and returns UTF-8 value of it when trying to be read from

Registers

Hex Name Description
0x1 PC (Program counter) Address of current instruction
0x2 OPC Opcode of current instruction

TODO