Copyright (C) 2020 Guillaume Guillet
Licensed under CERN OHL v.1.2
| This documentation describes Open Hardware and is licensed under the CERN OHL v. 1.2. |
| You may redistribute and modify this documentation under the terms of the CERN OHL v.1.2. (http://ohwr.org/cernohl). This documentation is distributed WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING OF MERCHANTABILITY, SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE. Please see the CERN OHL v.1.2 for applicable conditions |
G_Processor8Bits is a homemade, without any microcontroller, 8bits processor.
Actual version :
GP8B_V4
8bits instuction is separated in 2 category :
-------------- Number selection
|||
||| ---------- Opcode
||| |||||
000 00000
5bits for opcode :
0x00 = BWRITE1_CLK
0x01 = BWRITE2_CLK
0x02 = BPCS_CLK
0x03 = OPLEFT_CLK
0x04 = OPRIGHT_CLK
0x05 = OPC_CLK
0x06 = PERIPHERAL_CLK
0x07 = BJMPSRC1_CLK
0x08 = BJMPSRC2_CLK
0x09 = BJMPSRC3_CLK
0x0A = JMPSRC_CLK
0x0B = BRAMADD1_CLK
0x0C = BRAMADD2_CLK
0x0D = SPI_CLK
0x0E = BSPI_CLK
0x0F = STICK
0x10 = IF
0x11 = IFNOT
0x12 = RAMW
0x13 = UOP
0x14 = UOP
0x15 = UOP
0x16 = UOP
0x17 = LTICK
3bits for number selection :
0x0 = SRCVALUE
0x1 = BREAD1
0x2 = BREAD2
0x3 = OPRESULT
0x4 = RAMVALUE
0x5 = SPI
0x6 = EXT_1
0x7 = EXT_2
This processor, follow the SPS1 standard
Compatible with all motherboard following the MOM1_SPS1 standard
WIP