X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=cpu%2Fsrc%2From_b.vhd;h=b8c5b3b2d5b27a52f0b9e61ec424d2070982ef8d;hb=1968f329b10681b760faec9369aa893cd2af8d44;hp=9af8d8209da2d2075a94c7570481153139a5328d;hpb=a70afaae294cdb93b51ca938ddf18e2ce88f0451;p=calu.git diff --git a/cpu/src/rom_b.vhd b/cpu/src/rom_b.vhd index 9af8d82..b8c5b3b 100644 --- a/cpu/src/rom_b.vhd +++ b/cpu/src/rom_b.vhd @@ -1,3 +1,24 @@ +-- `Deep Thought', a softcore CPU implemented on a FPGA +-- +-- Copyright (C) 2010 Markus Hofstaetter +-- Copyright (C) 2010 Martin Perner +-- Copyright (C) 2010 Stefan Rebernig +-- Copyright (C) 2010 Manfred Schwarz +-- Copyright (C) 2010 Bernhard Urban +-- +-- This program is free software: you can redistribute it and/or modify +-- it under the terms of the GNU General Public License as published by +-- the Free Software Foundation, either version 3 of the License, or +-- (at your option) any later version. +-- +-- This program is distributed in the hope that it will be useful, +-- but WITHOUT ANY WARRANTY; without even the implied warranty of +-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +-- GNU General Public License for more details. +-- +-- You should have received a copy of the GNU General Public License +-- along with this program. If not, see . + library ieee; use IEEE.std_logic_1164.all; @@ -123,55 +144,90 @@ begin -- when "00000000111" => data_out <= x"e7a00004"; -- when "00000001000" => data_out <= x"e7280004"; -- -- when "00000001001" => data_out <= x"eb7ffb81"; - when "0000000" => data_out <= x"eb000183"; -- br+ main - when "0000001" => data_out <= x"eb000487"; -- call+ uartrdy + when "0000000" => data_out <= x"eb000183"; -- br+ main + when "0000001" => data_out <= x"eb000103"; -- br+ main when "0000010" => data_out <= x"eb000008"; -- ret - when "0000011" => data_out <= x"ed090058"; -- ldi r1, 0x200b - when "0000100" => data_out <= x"ed110060"; -- ldi r2, 0x200c - when "0000101" => data_out <= x"ed190080"; -- ldi r3, 0x2010 - when "0000110" => data_out <= x"ed210120"; -- ldi r4, 0x2024 - when "0000111" => data_out <= x"ed280018"; -- ldi r5, 3 - when "0001000" => data_out <= x"e7aa0000"; -- stw r5, 0(r4) - when "0001001" => data_out <= x"eb7ffb83"; -- br+ start - when "0001010" => data_out <= x"ed4101a0"; -- ldi r8, 0x2034 - when "0001011" => data_out <= x"ed4901c0"; -- ldi r9, 0x2038 - when "0001100" => data_out <= x"e4555000"; -- xor r10, r10, r10 - when "0001101" => data_out <= x"e45dd800"; -- xor r11, r11, r11 - when "0001110" => data_out <= x"ed500400"; -- ldi r10, 0x80 - when "0001111" => data_out <= x"e7d40000"; -- stw r10, 0(r8) - when "0010000" => data_out <= x"ed580c18"; -- ldi r11, 0x0183 - when "0010001" => data_out <= x"ed5f5802"; -- ldih r11, 0xeb00 - when "0010010" => data_out <= x"e7dc8000"; -- stw r11, 0(r9) - when "0010011" => data_out <= x"e4555000"; -- xor r10, r10, r10 - when "0010100" => data_out <= x"ed500408"; -- ldi r10, 0x81 - when "0010101" => data_out <= x"e7d40000"; -- stw r10, 0(r8) - when "0010110" => data_out <= x"ed580838"; -- ldi r11, 0x107 - when "0010111" => data_out <= x"ed5f5802"; -- ldih r11, 0xeb00 - when "0011000" => data_out <= x"e7dc8000"; -- stw r11, 0(r9) - when "0011001" => data_out <= x"e4555000"; -- xor r10, r10, r10 - when "0011010" => data_out <= x"ed500410"; -- ldi r10, 0x82 - when "0011011" => data_out <= x"e7d40000"; -- stw r10, 0(r8) - when "0011100" => data_out <= x"ed580040"; -- ldi r11, 0x8 - when "0011101" => data_out <= x"ed5f5802"; -- ldih r11, 0xeb00 - when "0011110" => data_out <= x"e7dc8000"; -- stw r11, 0(r9) - when "0011111" => data_out <= x"e4555000"; -- xor r10, r10, r10 - when "0100000" => data_out <= x"ed500418"; -- ldi r10, 0x83 - when "0100001" => data_out <= x"e7d40000"; -- stw r10, 0(r8) - when "0100010" => data_out <= x"ed580000"; -- ldi r11, 0x0 - when "0100011" => data_out <= x"ed5f5802"; -- ldih r11, 0xeb00 - when "0100100" => data_out <= x"e7dc8000"; -- stw r11, 0(r9) - when "0100101" => data_out <= x"e4555000"; -- xor r10, r10, r10 - when "0100110" => data_out <= x"ed500420"; -- ldi r10, 0x84 - when "0100111" => data_out <= x"e7d40000"; -- stw r10, 0(r8) - when "0101000" => data_out <= x"ed5c0000"; -- ldi r11, 0x8000 - when "0101001" => data_out <= x"ed5f3dc2"; -- ldih r11, 0xe7b8 - when "0101010" => data_out <= x"e7dc8000"; -- stw r11, 0(r9) - when "0101011" => data_out <= x"e4555000"; -- xor r10, r10, r10 - when "0101100" => data_out <= x"ed500428"; -- ldi r10, 0x85 - when "0101101" => data_out <= x"e7d40000"; -- stw r10, 0(r8) - when "0101110" => data_out <= x"ed580018"; -- ldi r11, 0x3 - when "0101111" => data_out <= x"ed5f5802"; -- ldih r11, 0xeb00 - when "0110000" => data_out <= x"e7dc8000"; -- stw r11, 0(r9) + when "0000011" => data_out <= x"ed510000"; -- ldi r10, UART_BASE@lo + when "0000100" => data_out <= x"ed500002"; -- ldih r10, UART_BASE@hi + when "0000101" => data_out <= x"ed590180"; -- ldi r11, PBASE@lo + when "0000110" => data_out <= x"ed580002"; -- ldih r11, PBASE@hi + when "0000111" => data_out <= x"eb000985"; -- call recv_byte + when "0001000" => data_out <= x"e4088800"; -- xor r1, r1, r1 + when "0001001" => data_out <= x"ec800240"; -- cmpi r0, 0x48 + when "0001010" => data_out <= x"1b001703"; -- breq+ bt_H + when "0001011" => data_out <= x"eb7ffe01"; -- br poll + when "0001100" => data_out <= x"e71d0000"; -- ldw r3, UART_STATUS(r10) + when "0001101" => data_out <= x"e2980008"; -- andx r3, UART_TRANS_EMPTY + when "0001110" => data_out <= x"0b7fff03"; -- brnz+ send_byte + when "0001111" => data_out <= x"e78d0008"; -- stw r1, UART_TRANS(r10) + when "0010000" => data_out <= x"eb000008"; -- ret + when "0010001" => data_out <= x"e5008008"; -- lrs r0, r1, 0 + when "0010010" => data_out <= x"eb7ffd05"; -- call send_byte + when "0010011" => data_out <= x"e500a008"; -- lrs r0, r1, 8 + when "0010100" => data_out <= x"eb7ffc05"; -- call send_byte + when "0010101" => data_out <= x"e500c008"; -- lrs r0, r1, 16 + when "0010110" => data_out <= x"eb7ffb05"; -- call send_byte + when "0010111" => data_out <= x"e500e008"; -- lrs r0, r1, 24 + when "0011000" => data_out <= x"eb7ffa05"; -- call send_byte + when "0011001" => data_out <= x"eb000008"; -- ret + when "0011010" => data_out <= x"e71d0000"; -- ldw r3, UART_STATUS(r10) + when "0011011" => data_out <= x"e2980010"; -- andx r3, UART_RECV_NEW + when "0011100" => data_out <= x"1b7fff03"; -- brzs+ recv_byte + when "0011101" => data_out <= x"e4000000"; -- xor r0, r0, r0 + when "0011110" => data_out <= x"e705000c"; -- ldw r0, UART_RECV(r10) + when "0011111" => data_out <= x"eb000008"; -- ret + when "0100000" => data_out <= x"e4088800"; -- xor r1, r1, r1 + when "0100001" => data_out <= x"eb7ffc85"; -- call recv_byte + when "0100010" => data_out <= x"e3080800"; -- or r1, r0, r1 + when "0100011" => data_out <= x"eb7ffb85"; -- call recv_byte + when "0100100" => data_out <= x"e508a000"; -- lls r1, r1, 8 + when "0100101" => data_out <= x"e3080800"; -- or r1, r0, r1 + when "0100110" => data_out <= x"eb7ffa05"; -- call recv_byte + when "0100111" => data_out <= x"e508a000"; -- lls r1, r1, 8 + when "0101000" => data_out <= x"e3080800"; -- or r1, r0, r1 + when "0101001" => data_out <= x"eb7ff885"; -- call recv_byte + when "0101010" => data_out <= x"e508a000"; -- lls r1, r1, 8 + when "0101011" => data_out <= x"e3000800"; -- or r0, r0, r1 + when "0101100" => data_out <= x"e4088800"; -- xor r1, r1, r1 + when "0101101" => data_out <= x"eb000008"; -- ret + when "0101110" => data_out <= x"eb7ff605"; -- call recv_byte + when "0101111" => data_out <= x"e4088800"; -- xor r1, r1, r1 + when "0110000" => data_out <= x"ec8002b8"; -- cmpi r0, 0x57 + when "0110001" => data_out <= x"1b000501"; -- breq- bt_W + when "0110010" => data_out <= x"ec800288"; -- cmpi r0, 0x51 + when "0110011" => data_out <= x"1b000881"; -- breq- bt_Q + when "0110100" => data_out <= x"ec8002a0"; -- cmpi r0, 0x54 + when "0110101" => data_out <= x"1b000c01"; -- breq- bt_T + when "0110110" => data_out <= x"ec800250"; -- cmpi r0, 0x4a + when "0110111" => data_out <= x"1b000e81"; -- breq- bt_J + when "0111000" => data_out <= x"ed080278"; -- ldi r1, 0x4f + when "0111001" => data_out <= x"eb7fe985"; -- call send_byte + when "0111010" => data_out <= x"eb7ffa01"; -- br bootrom + when "0111011" => data_out <= x"ed0802b8"; -- ldi r1, 0x57 + when "0111100" => data_out <= x"eb7fe805"; -- call send_byte + when "0111101" => data_out <= x"eb7ff185"; -- call recv_word + when "0111110" => data_out <= x"e7858004"; -- stw r0, PADDR(r11) + when "0111111" => data_out <= x"eb7ff085"; -- call recv_word + when "1000000" => data_out <= x"e7858008"; -- stw r0, PDATA(r11) + when "1000001" => data_out <= x"ed080220"; -- ldi r1, 0x44 + when "1000010" => data_out <= x"eb7fe505"; -- call send_byte + when "1000011" => data_out <= x"eb7ff581"; -- br bootrom + when "1000100" => data_out <= x"ed080288"; -- ldi r1, 0x51 + when "1000101" => data_out <= x"eb7fe385"; -- call send_byte + when "1000110" => data_out <= x"eb7fed05"; -- call recv_word + when "1000111" => data_out <= x"e1300000"; -- addi r6, r0, 0 + when "1001000" => data_out <= x"eb7fec05"; -- call recv_word + when "1001001" => data_out <= x"e7830000"; -- stw r0, 0(r6) + when "1001010" => data_out <= x"ed080208"; -- ldi r1, 0x41 + when "1001011" => data_out <= x"eb7fe085"; -- call send_byte + when "1001100" => data_out <= x"eb7ff101"; -- br bootrom + when "1001101" => data_out <= x"eb7fe985"; -- call recv_word + when "1001110" => data_out <= x"e1100000"; -- mov r2, r0 + when "1001111" => data_out <= x"ed080238"; -- ldi r1, 0x47 + when "1010000" => data_out <= x"eb7fde05"; -- call send_byte + when "1010001" => data_out <= x"e7090000"; -- ldw r1, 0(r2) + when "1010010" => data_out <= x"eb7fdf85"; -- call send_word + when "1010011" => data_out <= x"eb7fed81"; -- br bootrom -- just nop until rom end! when others => data_out <= x"fd000000"; end case;