- added

git-svn-id: http://moon:8086/svn/vhdl/trunk@1630 cc03376c-175c-47c8-b038-4cd826a8556b
2021-04-04 08:57:50 +00:00
parent 8d0db9c098
commit cbd6a1fa29
6 changed files with 2456 additions and 0 deletions
@@ -0,0 +1,184 @@
+-------------------------------------------------------------------------
+-- Project: JCPU, a portable 8-bit RISC CPU written in VHDL
+-- This file: The ROM file for use in your VHDL design
+--
+-- Copyright (C) 2007 J. Ahrensfeld
+--
+-- 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 <http://www.gnu.org/licenses/>.
+--
+-- For questions and ideas, please contact the author at jens@jayfield.org
+--
+--------------------------------------------------------------------------
+
+LIBRARY ieee;
+use IEEE.STD_LOGIC_1164.ALL;
+USE ieee.numeric_std.ALL;
+
+library work;
+use work.cpu_pkg.all;
+
+-- JASM_ROM_INSERT_HERE
+ENTITY irom IS
+	Port (
+	clk			: in  STD_LOGIC;
+	ce			: in  STD_LOGIC;
+	addr		: in  inst_addr_t;
+	dout		: out inst_t
+	);
+END irom;
+
+ARCHITECTURE hallo_welt_uart OF irom IS 
+
+	type imem_rom_t is array (0 to 122) of inst_t;
+
+	-- Assembled from hallo_welt_uart.jsm
+	constant imem_rom : imem_rom_t :=
+	(
+		"110000" & X"002", -- 0x000: JMP 0x002
+		"111111" & X"000", -- 0x001: RETI
+		"101000" & X"020", -- 0x002: XIN R00, (0x02)
+		"111011" & X"027", -- 0x003: CALL 0x027
+		"111011" & X"037", -- 0x004: CALL 0x037
+		"000010" & X"010", -- 0x005: MOV R00, R01
+		"111011" & X"037", -- 0x006: CALL 0x037
+		"000011" & X"001", -- 0x007: MOV R01, 0x00
+		"111011" & X"02E", -- 0x008: CALL 0x02E
+		"000011" & X"031", -- 0x009: MOV R01, 0x03
+		"111011" & X"02E", -- 0x00A: CALL 0x02E
+		"101001" & X"000", -- 0x00B: CIN R00, (0x00)
+		"010001" & X"300", -- 0x00C: ADD R00, 0x30
+		"111011" & X"037", -- 0x00D: CALL 0x037
+		"000011" & X"001", -- 0x00E: MOV R01, 0x00
+		"111011" & X"02E", -- 0x00F: CALL 0x02E
+		"000011" & X"0D1", -- 0x010: MOV R01, 0x0D
+		"111011" & X"02E", -- 0x011: CALL 0x02E
+		"000011" & X"161", -- 0x012: MOV R01, 0x16
+		"111011" & X"02E", -- 0x013: CALL 0x02E
+		"000011" & X"A0F", -- 0x014: MOV R15, 0xA0
+		"001111" & X"00F", -- 0x015: TST R15
+		"110001" & X"020", -- 0x016: JZ 0x020
+		"010101" & X"01F", -- 0x017: DEC R15
+		"000011" & X"301", -- 0x018: MOV R01, 0x30
+		"001111" & X"3A1", -- 0x019: CMP R01, 0x3A
+		"111001" & X"01F", -- 0x01A: JEQ 0x01F
+		"000010" & X"010", -- 0x01B: MOV R00, R01
+		"010001" & X"011", -- 0x01C: INC R01
+		"111011" & X"037", -- 0x01D: CALL 0x037
+		"110000" & X"019", -- 0x01E: JMP 0x019
+		"110000" & X"015", -- 0x01F: JMP 0x015
+		"110000" & X"009", -- 0x020: JMP 0x009
+		"011001" & X"0F0", -- 0x021: AND R00, 0x0F
+		"001111" & X"0A0", -- 0x022: CMP R00, 0x0A
+		"110101" & X"025", -- 0x023: JLT 0x025
+		"010001" & X"070", -- 0x024: ADD R00, 0x07
+		"010001" & X"300", -- 0x025: ADD R00, 0x30
+		"111110" & X"000", -- 0x026: RET
+		"111100" & X"000", -- 0x027: PUSH R00
+		"111011" & X"021", -- 0x028: CALL 0x021
+		"000010" & X"001", -- 0x029: MOV R01, R00
+		"111101" & X"000", -- 0x02A: POP R00
+		"101010" & X"000", -- 0x02B: SWAP R00
+		"111011" & X"021", -- 0x02C: CALL 0x021
+		"111110" & X"000", -- 0x02D: RET
+		"111100" & X"000", -- 0x02E: PUSH R00
+		"000100" & X"010", -- 0x02F: MOVX R00, (R01)
+		"010001" & X"011", -- 0x030: INC R01
+		"001111" & X"000", -- 0x031: TST R00
+		"110001" & X"035", -- 0x032: JZ 0x035
+		"111011" & X"037", -- 0x033: CALL 0x037
+		"110000" & X"02F", -- 0x034: JMP 0x02F
+		"111101" & X"000", -- 0x035: POP R00
+		"111110" & X"000", -- 0x036: RET
+		"110000" & X"038", -- 0x037: JMP 0x038
+		"111100" & X"001", -- 0x038: PUSH R01
+		"101000" & X"061", -- 0x039: XIN R01, (0x06)
+		"011001" & X"021", -- 0x03A: AND R01, 0x02
+		"110010" & X"039", -- 0x03B: JNZ 0x039
+		"100100" & X"020", -- 0x03C: XOUT (0x02), R00
+		"111101" & X"001", -- 0x03D: POP R01
+		"111110" & X"000", -- 0x03E: RET
+		"111100" & X"001", -- 0x03F: PUSH R01
+		"101000" & X"061", -- 0x040: XIN R01, (0x06)
+		"011001" & X"101", -- 0x041: AND R01, 0x10
+		"110010" & X"040", -- 0x042: JNZ 0x040
+		"101000" & X"020", -- 0x043: XIN R00, (0x02)
+		"111101" & X"001", -- 0x044: POP R01
+		"111110" & X"000", -- 0x045: RET
+		"111100" & X"00F", -- 0x046: PUSH R15
+		"000011" & X"0AF", -- 0x047: MOV R15, 0x0A
+		"111011" & X"04D", -- 0x048: CALL 0x04D
+		"010101" & X"01F", -- 0x049: DEC R15
+		"110010" & X"048", -- 0x04A: JNZ 0x048
+		"111101" & X"00F", -- 0x04B: POP R15
+		"111110" & X"000", -- 0x04C: RET
+		"111100" & X"00F", -- 0x04D: PUSH R15
+		"000011" & X"0AF", -- 0x04E: MOV R15, 0x0A
+		"111011" & X"054", -- 0x04F: CALL 0x054
+		"010101" & X"01F", -- 0x050: DEC R15
+		"110010" & X"04F", -- 0x051: JNZ 0x04F
+		"111101" & X"00F", -- 0x052: POP R15
+		"111110" & X"000", -- 0x053: RET
+		"111100" & X"00F", -- 0x054: PUSH R15
+		"000011" & X"0AF", -- 0x055: MOV R15, 0x0A
+		"111011" & X"05B", -- 0x056: CALL 0x05B
+		"010101" & X"01F", -- 0x057: DEC R15
+		"110010" & X"056", -- 0x058: JNZ 0x056
+		"111101" & X"00F", -- 0x059: POP R15
+		"111110" & X"000", -- 0x05A: RET
+		"111100" & X"00F", -- 0x05B: PUSH R15
+		"000011" & X"0AF", -- 0x05C: MOV R15, 0x0A
+		"111011" & X"062", -- 0x05D: CALL 0x062
+		"010101" & X"01F", -- 0x05E: DEC R15
+		"110010" & X"05D", -- 0x05F: JNZ 0x05D
+		"111101" & X"00F", -- 0x060: POP R15
+		"111110" & X"000", -- 0x061: RET
+		"111100" & X"00F", -- 0x062: PUSH R15
+		"000011" & X"0AF", -- 0x063: MOV R15, 0x0A
+		"111011" & X"069", -- 0x064: CALL 0x069
+		"010101" & X"01F", -- 0x065: DEC R15
+		"110010" & X"064", -- 0x066: JNZ 0x064
+		"111101" & X"00F", -- 0x067: POP R15
+		"111110" & X"000", -- 0x068: RET
+		"111100" & X"00F", -- 0x069: PUSH R15
+		"000011" & X"63F", -- 0x06A: MOV R15, 0x63
+		"000000" & X"000", -- 0x06B: NOP
+		"000000" & X"000", -- 0x06C: NOP
+		"000000" & X"000", -- 0x06D: NOP
+		"010101" & X"01F", -- 0x06E: DEC R15
+		"110010" & X"06B", -- 0x06F: JNZ 0x06B
+		"111101" & X"00F", -- 0x070: POP R15
+		"111110" & X"000", -- 0x071: RET
+		"111100" & X"00F", -- 0x072: PUSH R15
+		"000011" & X"09F", -- 0x073: MOV R15, 0x09
+		"000000" & X"000", -- 0x074: NOP
+		"000000" & X"000", -- 0x075: NOP
+		"000000" & X"000", -- 0x076: NOP
+		"010101" & X"01F", -- 0x077: DEC R15
+		"110010" & X"074", -- 0x078: JNZ 0x074
+		"111101" & X"00F", -- 0x079: POP R15
+		"111110" & X"000"  -- 0x07A: RET
+	);
+
+begin
+
+PROM_READ:
+	process(clk, ce)
+	begin
+		if rising_edge(clk) and ce = '1' then
+			dout <= imem_rom(to_integer(addr));
+		end if;
+	end process;
+
+end hallo_welt_uart;
+