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git-svn-id: http://moon:8086/svn/vhdl/trunk@1414 cc03376c-175c-47c8-b038-4cd826a8556b
2021-03-21 10:47:01 +00:00
parent 32440f7db9
commit ea60299d26
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+-------------------------------------------------------------------------
+-- 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 sdr_test_short OF irom IS 
+
+	type imem_rom_t is array (0 to 110) of inst_t;
+
+	-- Assembled from sdr_test_short.jsm
+	constant imem_rom : imem_rom_t :=
+	(
+		"110000" & X"002", -- 0x000: JMP 0x002
+		"111111" & X"000", -- 0x001: RETI
+		"000011" & X"000", -- 0x002: MOV R00, 0x00
+		"100100" & X"010", -- 0x003: XOUT (0x01), R00
+		"101000" & X"040", -- 0x004: XIN R00, (0x04)
+		"011001" & X"CF0", -- 0x005: AND R00, 0xCF
+		"100100" & X"040", -- 0x006: XOUT (0x04), R00
+		"101000" & X"070", -- 0x007: XIN R00, (0x07)
+		"011001" & X"800", -- 0x008: AND R00, 0x80
+		"110010" & X"007", -- 0x009: JNZ 0x007
+		"110000" & X"00B", -- 0x00A: JMP 0x00B
+		"111011" & X"058", -- 0x00B: CALL 0x058
+		"000011" & X"800", -- 0x00C: MOV R00, 0x80
+		"000011" & X"08F", -- 0x00D: MOV R15, 0x08
+		"000111" & X"000", -- 0x00E: MOVX (R00), 0x00
+		"010001" & X"010", -- 0x00F: INC R00
+		"010101" & X"01F", -- 0x010: DEC R15
+		"110010" & X"00E", -- 0x011: JNZ 0x00E
+		"101000" & X"080", -- 0x012: XIN R00, (0x08)
+		"001111" & X"080", -- 0x013: CMP R00, 0x08
+		"111001" & X"01D", -- 0x014: JEQ 0x01D
+		"101000" & X"070", -- 0x015: XIN R00, (0x07)
+		"011001" & X"020", -- 0x016: AND R00, 0x02
+		"110010" & X"015", -- 0x017: JNZ 0x015
+		"000011" & X"070", -- 0x018: MOV R00, 0x07
+		"100101" & X"020", -- 0x019: XOUT (R00), 0x02
+		"000011" & X"020", -- 0x01A: MOV R00, 0x02
+		"111011" & X"05F", -- 0x01B: CALL 0x05F
+		"110000" & X"012", -- 0x01C: JMP 0x012
+		"111011" & X"058", -- 0x01D: CALL 0x058
+		"000011" & X"000", -- 0x01E: MOV R00, 0x00
+		"001101" & X"000", -- 0x01F: MOVC (0x00), R00
+		"101000" & X"080", -- 0x020: XIN R00, (0x08)
+		"001111" & X"080", -- 0x021: CMP R00, 0x08
+		"111001" & X"037", -- 0x022: JEQ 0x037
+		"001010" & X"001", -- 0x023: MOVC R01, (0x00)
+		"000011" & X"800", -- 0x024: MOV R00, 0x80
+		"000011" & X"08F", -- 0x025: MOV R15, 0x08
+		"000110" & X"001", -- 0x026: MOVX (R01), R00
+		"010001" & X"010", -- 0x027: INC R00
+		"010001" & X"011", -- 0x028: INC R01
+		"010101" & X"01F", -- 0x029: DEC R15
+		"110010" & X"026", -- 0x02A: JNZ 0x026
+		"101000" & X"070", -- 0x02B: XIN R00, (0x07)
+		"011001" & X"020", -- 0x02C: AND R00, 0x02
+		"110010" & X"02B", -- 0x02D: JNZ 0x02B
+		"000000" & X"000", -- 0x02E: NOP
+		"000011" & X"070", -- 0x02F: MOV R00, 0x07
+		"100101" & X"020", -- 0x030: XOUT (R00), 0x02
+		"000011" & X"020", -- 0x031: MOV R00, 0x02
+		"111011" & X"05F", -- 0x032: CALL 0x05F
+		"001010" & X"000", -- 0x033: MOVC R00, (0x00)
+		"010001" & X"010", -- 0x034: INC R00
+		"001101" & X"000", -- 0x035: MOVC (0x00), R00
+		"110000" & X"020", -- 0x036: JMP 0x020
+		"111011" & X"058", -- 0x037: CALL 0x058
+		"000011" & X"000", -- 0x038: MOV R00, 0x00
+		"001101" & X"000", -- 0x039: MOVC (0x00), R00
+		"101000" & X"080", -- 0x03A: XIN R00, (0x08)
+		"001111" & X"080", -- 0x03B: CMP R00, 0x08
+		"111001" & X"052", -- 0x03C: JEQ 0x052
+		"000011" & X"070", -- 0x03D: MOV R00, 0x07
+		"100101" & X"010", -- 0x03E: XOUT (R00), 0x01
+		"101000" & X"070", -- 0x03F: XIN R00, (0x07)
+		"011001" & X"010", -- 0x040: AND R00, 0x01
+		"110010" & X"03F", -- 0x041: JNZ 0x03F
+		"001010" & X"001", -- 0x042: MOVC R01, (0x00)
+		"000011" & X"800", -- 0x043: MOV R00, 0x80
+		"000011" & X"08F", -- 0x044: MOV R15, 0x08
+		"000100" & X"002", -- 0x045: MOVX R02, (R00)
+		"001110" & X"012", -- 0x046: CMP R02, R01
+		"111010" & X"053", -- 0x047: JNE 0x053
+		"010001" & X"010", -- 0x048: INC R00
+		"010001" & X"011", -- 0x049: INC R01
+		"010101" & X"01F", -- 0x04A: DEC R15
+		"110010" & X"045", -- 0x04B: JNZ 0x045
+		"000011" & X"020", -- 0x04C: MOV R00, 0x02
+		"111011" & X"05F", -- 0x04D: CALL 0x05F
+		"001010" & X"000", -- 0x04E: MOVC R00, (0x00)
+		"010001" & X"010", -- 0x04F: INC R00
+		"001101" & X"000", -- 0x050: MOVC (0x00), R00
+		"110000" & X"03A", -- 0x051: JMP 0x03A
+		"110000" & X"057", -- 0x052: JMP 0x057
+		"101000" & X"040", -- 0x053: XIN R00, (0x04)
+		"011011" & X"100", -- 0x054: OR R00, 0x10
+		"100100" & X"040", -- 0x055: XOUT (0x04), R00
+		"110000" & X"057", -- 0x056: JMP 0x057
+		"110000" & X"057", -- 0x057: JMP 0x057
+		"111100" & X"000", -- 0x058: PUSH R00
+		"000011" & X"000", -- 0x059: MOV R00, 0x00
+		"100100" & X"080", -- 0x05A: XOUT (0x08), R00
+		"100100" & X"090", -- 0x05B: XOUT (0x09), R00
+		"100100" & X"0A0", -- 0x05C: XOUT (0x0A), R00
+		"111101" & X"000", -- 0x05D: POP R00
+		"111110" & X"000", -- 0x05E: RET
+		"111100" & X"001", -- 0x05F: PUSH R01
+		"111100" & X"002", -- 0x060: PUSH R02
+		"111100" & X"003", -- 0x061: PUSH R03
+		"101000" & X"081", -- 0x062: XIN R01, (0x08)
+		"101000" & X"092", -- 0x063: XIN R02, (0x09)
+		"101000" & X"0A3", -- 0x064: XIN R03, (0x0A)
+		"010000" & X"001", -- 0x065: ADD R01, R00
+		"010011" & X"002", -- 0x066: ADDC R02, 0x00
+		"010011" & X"003", -- 0x067: ADDC R03, 0x00
+		"100100" & X"081", -- 0x068: XOUT (0x08), R01
+		"100100" & X"092", -- 0x069: XOUT (0x09), R02
+		"100100" & X"0A3", -- 0x06A: XOUT (0x0A), R03
+		"111101" & X"003", -- 0x06B: POP R03
+		"111101" & X"002", -- 0x06C: POP R02
+		"111101" & X"001", -- 0x06D: POP R01
+		"111110" & X"000"  -- 0x06E: 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 sdr_test_short;
+