dolphinnas.blogg.se - Vhdl arm emulator

#Vhdl arm emulator 32 bit#
#Vhdl arm emulator plus#

The internals are 8 bit, as using wider busses and registers

#Vhdl arm emulator plus#

Of basically 74-series logic ICs plus a number of ROMs. The M圜PU is a computer completely built from logic ICs - no highly integrated parts used! I.e. This way also the address space is extended to 24 bit. The system catches 65C02 undefined opcodes, andĮxecutes them aside the original processor. The KimKlone is a very intersting 6502 extension.

To the commodorefree interview with Gideo it may have been abandoned. The CPU has been used in the C=1 system, but it is difficult to find further references anymore.

#Vhdl arm emulator 32 bit#

16384 possible native instructions.Ħ502 opcodes are translated into one or two of the CPU's 32 bit native opcodes

Then gives an opcode space of 14 bit, i.e. Has to lowest two bits set - which are all illegal opcodes in the 6502 - and a second opcode bytes The 65GZ032 opcodes are interleaved with the 6502 opcodes in that the first byte The processor is able to operate on 8, 16, and 32 bit wide operands, address and data busses areģ2 bit each.

Can access 4GB of linear memory (no segments, bank switching, etc).

Highly orthogonal architecture (very few fixed function registers).

Eight 32 bit registers (five are all-purpose) and one 16 bit register.

Pipelined RISC architecture, with instruction and data caches.

With the 65GZ032 Gideo Zweijtzer has built a VHDL core that is 6502 compatible, but extends theĨ bit core with a 32 bit design. This section contains links to various projects of other people that extended the 6502 65GZ032