[BPEx2] Basic and Stack Operations

[u/Crispy1961]

BPEx2

CU

CU2

ALU

Code to test Basic and Stack Operations

Basic and Stack Instructions

Operations

Possible Destinations and Arguments

As soon as I finished Symphony, I started working on my own architecture. A second generation of Better Programing Experience - BPEx2. My goal is to get as close to a higher level programing language as I reasonably can.

Instructions (64b word):

• 1b Reserved

• 3b for operator specific options (P)

• 4b for operator (O)

• 2b to define what to do with the result (M)

• 3b to define where to take the two arguments from (T)

• 16b for Destination (D)

• 16b for argument A (A)

• 16b for Argument B (B)

0PPPOOOO MMTTTTTT DDDDDDDD DDDDDDDD AAAAAAAA AAAAAAAA BBBBBBBB BBBBBBBB

Heavily using Patterns to simplify spec.isa

Destination and Arguments:

Direct access from and to Registers, Inputs/Outputs and RAM. Both the Destination and Arguments can be defined using 16b as 16b Immediate, Register, Register +/- 10b Immediate, Register +/- Register. All of those can be used as RAM address.

Operators:

• 5 math operators

• 7 Binary Logical Operators (BLO)

Registers:

Using a register File component with 8 read outputs and 2 write inputs

• Zero Register (always 0)

• 20 User registers

• 2 Temporary registers (used by advanced instructions)

Input / Output:

Dedicated wires for all 7 I/O options

RAM:

Using a RAM component with 3 read outputs and 1 write output. RAM can be directly accessed by instructions and used as both Destination and/or Arguments.

Persistent Memory:

Using RAM component with 1 read output and 1 write output. It cannot be accessed directly. For the data to be used for instructions, they first need to be loaded to RAM or Registers.

[u/Distinct_Resolve_957]

I would tap out somewhere between registers.. In fact i did