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vhdl/projects/cpu/src/systest/sdram_test_irom_ld.vhdl
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jens ea60299d26 - added 
git-svn-id: http://moon:8086/svn/vhdl/trunk@1414 cc03376c-175c-47c8-b038-4cd826a8556b
2021-03-21 10:47:01 +00:00

1182 lines
36 KiB
VHDL
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-------------------------------------------------------------------------
-- Project: JCPU, a portable 8-bit RISC CPU written in VHDL
-- This file: loadable ROM
--
-- 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 UNISIM;
use UNISIM.VComponents.all;
library work;
use work.cpu_pkg.all;
ENTITY irom IS
Port (
clk : in STD_LOGIC;
ce : in STD_LOGIC;
addr : in inst_addr_t;
dout : out inst_t
);
END irom;
ARCHITECTURE loadable OF irom IS
-- JASM_ROM_INSERT_HERE
-- Assembled from sdram_test.jsm
type imem_rom_t is array (0 to 1023) of inst_t;
signal imem_rom : imem_rom_t :=
(
"110000" & X"007", -- 0x000: JMP 0x007
"111100" & X"000", -- 0x001: PUSH R00
"101000" & X"040", -- 0x002: XIN R00, (0x04)
"011011" & X"100", -- 0x003: OR R00, 0x10
"100100" & X"040", -- 0x004: XOUT (0x04), R00
"111101" & X"000", -- 0x005: POP R00
"111111" & X"000", -- 0x006: RETI
"111011" & X"128", -- 0x007: CALL 0x128
"000011" & X"000", -- 0x008: MOV R00, 0x00
"100100" & X"010", -- 0x009: XOUT (0x01), R00
"000011" & X"040", -- 0x00A: MOV R00, 0x04
"100100" & X"040", -- 0x00B: XOUT (0x04), R00
"101001" & X"030", -- 0x00C: CIN R00, (0x03)
"011011" & X"050", -- 0x00D: OR R00, 0x05
"100110" & X"030", -- 0x00E: COUT (0x03), R00
"000011" & X"010", -- 0x00F: MOV R00, 0x01
"111011" & X"145", -- 0x010: CALL 0x145
"000011" & X"000", -- 0x011: MOV R00, 0x00
"000011" & X"C01", -- 0x012: MOV R01, 0xC0
"100100" & X"101", -- 0x013: XOUT (0x10), R01
"100100" & X"111", -- 0x014: XOUT (0x11), R01
"100100" & X"121", -- 0x015: XOUT (0x12), R01
"111011" & X"1B9", -- 0x016: CALL 0x1B9
"111011" & X"19E", -- 0x017: CALL 0x19E
"000011" & X"031", -- 0x018: MOV R01, 0x03
"111011" & X"14A", -- 0x019: CALL 0x14A
"000011" & X"031", -- 0x01A: MOV R01, 0x03
"111011" & X"1AA", -- 0x01B: CALL 0x1AA
"000011" & X"001", -- 0x01C: MOV R01, 0x00
"111011" & X"1B6", -- 0x01D: CALL 0x1B6
"101000" & X"040", -- 0x01E: XIN R00, (0x04)
"011011" & X"100", -- 0x01F: OR R00, 0x10
"100100" & X"040", -- 0x020: XOUT (0x04), R00
"111011" & X"1C6", -- 0x021: CALL 0x1C6
"011011" & X"200", -- 0x022: OR R00, 0x20
"100100" & X"040", -- 0x023: XOUT (0x04), R00
"111011" & X"1C6", -- 0x024: CALL 0x1C6
"011001" & X"EF0", -- 0x025: AND R00, 0xEF
"100100" & X"040", -- 0x026: XOUT (0x04), R00
"111011" & X"1C6", -- 0x027: CALL 0x1C6
"011001" & X"CF0", -- 0x028: AND R00, 0xCF
"100100" & X"040", -- 0x029: XOUT (0x04), R00
"000011" & X"010", -- 0x02A: MOV R00, 0x01
"111011" & X"145", -- 0x02B: CALL 0x145
"000011" & X"0E1", -- 0x02C: MOV R01, 0x0E
"111011" & X"14A", -- 0x02D: CALL 0x14A
"000011" & X"0E1", -- 0x02E: MOV R01, 0x0E
"111011" & X"1B3", -- 0x02F: CALL 0x1B3
"000011" & X"001", -- 0x030: MOV R01, 0x00
"111011" & X"1B6", -- 0x031: CALL 0x1B6
"111011" & X"0CC", -- 0x032: CALL 0x0CC
"000011" & X"800", -- 0x033: MOV R00, 0x80
"000011" & X"08F", -- 0x034: MOV R15, 0x08
"000111" & X"000", -- 0x035: MOVX (R00), 0x00
"010001" & X"010", -- 0x036: INC R00
"010101" & X"01F", -- 0x037: DEC R15
"110010" & X"035", -- 0x038: JNZ 0x035
"101000" & X"0A0", -- 0x039: XIN R00, (0x0A)
"001111" & X"FF0", -- 0x03A: CMP R00, 0xFF
"111001" & X"04B", -- 0x03B: JEQ 0x04B
"000011" & X"082", -- 0x03C: MOV R02, 0x08
"101000" & X"070", -- 0x03D: XIN R00, (0x07)
"100100" & X"010", -- 0x03E: XOUT (0x01), R00
"011001" & X"040", -- 0x03F: AND R00, 0x04
"110010" & X"03D", -- 0x040: JNZ 0x03D
"000011" & X"100", -- 0x041: MOV R00, 0x10
"100100" & X"070", -- 0x042: XOUT (0x07), R00
"010101" & X"022", -- 0x043: SUB R02, 0x02
"110010" & X"03D", -- 0x044: JNZ 0x03D
"111011" & X"0AB", -- 0x045: CALL 0x0AB
"000011" & X"060", -- 0x046: MOV R00, 0x06
"100100" & X"070", -- 0x047: XOUT (0x07), R00
"000011" & X"080", -- 0x048: MOV R00, 0x08
"111011" & X"0D3", -- 0x049: CALL 0x0D3
"110000" & X"039", -- 0x04A: JMP 0x039
"111011" & X"0E3", -- 0x04B: CALL 0x0E3
"111011" & X"1BF", -- 0x04C: CALL 0x1BF
"110000" & X"04E", -- 0x04D: JMP 0x04E
"000011" & X"010", -- 0x04E: MOV R00, 0x01
"111011" & X"145", -- 0x04F: CALL 0x145
"000011" & X"1D1", -- 0x050: MOV R01, 0x1D
"111011" & X"14A", -- 0x051: CALL 0x14A
"000011" & X"1D1", -- 0x052: MOV R01, 0x1D
"111011" & X"1B3", -- 0x053: CALL 0x1B3
"000011" & X"001", -- 0x054: MOV R01, 0x00
"111011" & X"1B6", -- 0x055: CALL 0x1B6
"111011" & X"0CC", -- 0x056: CALL 0x0CC
"000011" & X"000", -- 0x057: MOV R00, 0x00
"001101" & X"000", -- 0x058: MOVC (0x00), R00
"101000" & X"0A0", -- 0x059: XIN R00, (0x0A)
"001111" & X"FF0", -- 0x05A: CMP R00, 0xFF
"111001" & X"076", -- 0x05B: JEQ 0x076
"000011" & X"082", -- 0x05C: MOV R02, 0x08
"001010" & X"001", -- 0x05D: MOVC R01, (0x00)
"000011" & X"800", -- 0x05E: MOV R00, 0x80
"000011" & X"08F", -- 0x05F: MOV R15, 0x08
"000110" & X"001", -- 0x060: MOVX (R01), R00
"010001" & X"010", -- 0x061: INC R00
"010001" & X"011", -- 0x062: INC R01
"010101" & X"01F", -- 0x063: DEC R15
"110010" & X"060", -- 0x064: JNZ 0x060
"101000" & X"070", -- 0x065: XIN R00, (0x07)
"100100" & X"010", -- 0x066: XOUT (0x01), R00
"011001" & X"040", -- 0x067: AND R00, 0x04
"110010" & X"065", -- 0x068: JNZ 0x065
"000011" & X"100", -- 0x069: MOV R00, 0x10
"100100" & X"070", -- 0x06A: XOUT (0x07), R00
"001010" & X"000", -- 0x06B: MOVC R00, (0x00)
"010001" & X"010", -- 0x06C: INC R00
"001101" & X"000", -- 0x06D: MOVC (0x00), R00
"010101" & X"022", -- 0x06E: SUB R02, 0x02
"110010" & X"05D", -- 0x06F: JNZ 0x05D
"111011" & X"0AB", -- 0x070: CALL 0x0AB
"000011" & X"060", -- 0x071: MOV R00, 0x06
"100100" & X"070", -- 0x072: XOUT (0x07), R00
"000011" & X"080", -- 0x073: MOV R00, 0x08
"111011" & X"0D3", -- 0x074: CALL 0x0D3
"110000" & X"059", -- 0x075: JMP 0x059
"111011" & X"0E3", -- 0x076: CALL 0x0E3
"111011" & X"1BF", -- 0x077: CALL 0x1BF
"000011" & X"010", -- 0x078: MOV R00, 0x01
"111011" & X"145", -- 0x079: CALL 0x145
"000011" & X"2B1", -- 0x07A: MOV R01, 0x2B
"111011" & X"14A", -- 0x07B: CALL 0x14A
"000011" & X"2B1", -- 0x07C: MOV R01, 0x2B
"111011" & X"1B3", -- 0x07D: CALL 0x1B3
"000011" & X"001", -- 0x07E: MOV R01, 0x00
"111011" & X"1B6", -- 0x07F: CALL 0x1B6
"111011" & X"0CC", -- 0x080: CALL 0x0CC
"000011" & X"000", -- 0x081: MOV R00, 0x00
"001101" & X"000", -- 0x082: MOVC (0x00), R00
"101000" & X"0A0", -- 0x083: XIN R00, (0x0A)
"001111" & X"FF0", -- 0x084: CMP R00, 0xFF
"111001" & X"0B3", -- 0x085: JEQ 0x0B3
"111011" & X"0AB", -- 0x086: CALL 0x0AB
"000011" & X"050", -- 0x087: MOV R00, 0x05
"100100" & X"070", -- 0x088: XOUT (0x07), R00
"000011" & X"083", -- 0x089: MOV R03, 0x08
"101000" & X"070", -- 0x08A: XIN R00, (0x07)
"100100" & X"010", -- 0x08B: XOUT (0x01), R00
"011001" & X"200", -- 0x08C: AND R00, 0x20
"110010" & X"08A", -- 0x08D: JNZ 0x08A
"001010" & X"001", -- 0x08E: MOVC R01, (0x00)
"000011" & X"800", -- 0x08F: MOV R00, 0x80
"000011" & X"08F", -- 0x090: MOV R15, 0x08
"000100" & X"002", -- 0x091: MOVX R02, (R00)
"001110" & X"012", -- 0x092: CMP R02, R01
"111010" & X"0BF", -- 0x093: JNE 0x0BF
"010001" & X"010", -- 0x094: INC R00
"010001" & X"011", -- 0x095: INC R01
"010101" & X"01F", -- 0x096: DEC R15
"110010" & X"091", -- 0x097: JNZ 0x091
"000011" & X"200", -- 0x098: MOV R00, 0x20
"100100" & X"070", -- 0x099: XOUT (0x07), R00
"001010" & X"000", -- 0x09A: MOVC R00, (0x00)
"010001" & X"010", -- 0x09B: INC R00
"001101" & X"000", -- 0x09C: MOVC (0x00), R00
"010101" & X"023", -- 0x09D: SUB R03, 0x02
"110010" & X"08A", -- 0x09E: JNZ 0x08A
"000011" & X"080", -- 0x09F: MOV R00, 0x08
"111011" & X"0D3", -- 0x0A0: CALL 0x0D3
"110000" & X"083", -- 0x0A1: JMP 0x083
"111100" & X"000", -- 0x0A2: PUSH R00
"000011" & X"800", -- 0x0A3: MOV R00, 0x80
"100100" & X"070", -- 0x0A4: XOUT (0x07), R00
"101000" & X"070", -- 0x0A5: XIN R00, (0x07)
"100100" & X"010", -- 0x0A6: XOUT (0x01), R00
"011001" & X"800", -- 0x0A7: AND R00, 0x80
"110001" & X"0A5", -- 0x0A8: JZ 0x0A5
"111101" & X"000", -- 0x0A9: POP R00
"111110" & X"000", -- 0x0AA: RET
"111011" & X"0A2", -- 0x0AB: CALL 0x0A2
"111100" & X"000", -- 0x0AC: PUSH R00
"101000" & X"070", -- 0x0AD: XIN R00, (0x07)
"100100" & X"010", -- 0x0AE: XOUT (0x01), R00
"011001" & X"010", -- 0x0AF: AND R00, 0x01
"110010" & X"0AD", -- 0x0B0: JNZ 0x0AD
"111101" & X"000", -- 0x0B1: POP R00
"111110" & X"000", -- 0x0B2: RET
"000011" & X"010", -- 0x0B3: MOV R00, 0x01
"111011" & X"145", -- 0x0B4: CALL 0x145
"000011" & X"391", -- 0x0B5: MOV R01, 0x39
"111011" & X"14A", -- 0x0B6: CALL 0x14A
"000011" & X"C00", -- 0x0B7: MOV R00, 0xC0
"111011" & X"145", -- 0x0B8: CALL 0x145
"111011" & X"0EE", -- 0x0B9: CALL 0x0EE
"000011" & X"391", -- 0x0BA: MOV R01, 0x39
"111011" & X"1B3", -- 0x0BB: CALL 0x1B3
"000011" & X"001", -- 0x0BC: MOV R01, 0x00
"111011" & X"1B6", -- 0x0BD: CALL 0x1B6
"110000" & X"0CA", -- 0x0BE: JMP 0x0CA
"000011" & X"010", -- 0x0BF: MOV R00, 0x01
"111011" & X"145", -- 0x0C0: CALL 0x145
"000011" & X"431", -- 0x0C1: MOV R01, 0x43
"111011" & X"14A", -- 0x0C2: CALL 0x14A
"111011" & X"0EE", -- 0x0C3: CALL 0x0EE
"111011" & X"106", -- 0x0C4: CALL 0x106
"000011" & X"431", -- 0x0C5: MOV R01, 0x43
"111011" & X"1B3", -- 0x0C6: CALL 0x1B3
"000011" & X"001", -- 0x0C7: MOV R01, 0x00
"111011" & X"1B6", -- 0x0C8: CALL 0x1B6
"110000" & X"0CA", -- 0x0C9: JMP 0x0CA
"111011" & X"1BF", -- 0x0CA: CALL 0x1BF
"110000" & X"02A", -- 0x0CB: JMP 0x02A
"111100" & X"000", -- 0x0CC: PUSH R00
"000011" & X"000", -- 0x0CD: MOV R00, 0x00
"100100" & X"080", -- 0x0CE: XOUT (0x08), R00
"100100" & X"090", -- 0x0CF: XOUT (0x09), R00
"100100" & X"0A0", -- 0x0D0: XOUT (0x0A), R00
"111101" & X"000", -- 0x0D1: POP R00
"111110" & X"000", -- 0x0D2: RET
"111100" & X"001", -- 0x0D3: PUSH R01
"111100" & X"002", -- 0x0D4: PUSH R02
"111100" & X"003", -- 0x0D5: PUSH R03
"101000" & X"081", -- 0x0D6: XIN R01, (0x08)
"101000" & X"092", -- 0x0D7: XIN R02, (0x09)
"101000" & X"0A3", -- 0x0D8: XIN R03, (0x0A)
"010000" & X"001", -- 0x0D9: ADD R01, R00
"010011" & X"002", -- 0x0DA: ADDC R02, 0x00
"010011" & X"003", -- 0x0DB: ADDC R03, 0x00
"100100" & X"081", -- 0x0DC: XOUT (0x08), R01
"100100" & X"092", -- 0x0DD: XOUT (0x09), R02
"100100" & X"0A3", -- 0x0DE: XOUT (0x0A), R03
"111101" & X"003", -- 0x0DF: POP R03
"111101" & X"002", -- 0x0E0: POP R02
"111101" & X"001", -- 0x0E1: POP R01
"111110" & X"000", -- 0x0E2: RET
"000011" & X"C00", -- 0x0E3: MOV R00, 0xC0
"111011" & X"145", -- 0x0E4: CALL 0x145
"111011" & X"0EE", -- 0x0E5: CALL 0x0EE
"111110" & X"000", -- 0x0E6: RET
"111100" & X"001", -- 0x0E7: PUSH R01
"111011" & X"121", -- 0x0E8: CALL 0x121
"111011" & X"15C", -- 0x0E9: CALL 0x15C
"000010" & X"010", -- 0x0EA: MOV R00, R01
"111011" & X"15C", -- 0x0EB: CALL 0x15C
"111101" & X"001", -- 0x0EC: POP R01
"111110" & X"000", -- 0x0ED: RET
"111100" & X"000", -- 0x0EE: PUSH R00
"101000" & X"0A0", -- 0x0EF: XIN R00, (0x0A)
"111011" & X"0E7", -- 0x0F0: CALL 0x0E7
"101000" & X"090", -- 0x0F1: XIN R00, (0x09)
"111011" & X"0E7", -- 0x0F2: CALL 0x0E7
"101000" & X"080", -- 0x0F3: XIN R00, (0x08)
"111011" & X"0E7", -- 0x0F4: CALL 0x0E7
"111101" & X"000", -- 0x0F5: POP R00
"111110" & X"000", -- 0x0F6: RET
"111100" & X"000", -- 0x0F7: PUSH R00
"010001" & X"031", -- 0x0F8: ADD R01, 0x03
"001001" & X"010", -- 0x0F9: MOVC R00, (R01)
"111011" & X"0E7", -- 0x0FA: CALL 0x0E7
"010101" & X"011", -- 0x0FB: DEC R01
"001001" & X"010", -- 0x0FC: MOVC R00, (R01)
"111011" & X"0E7", -- 0x0FD: CALL 0x0E7
"010101" & X"011", -- 0x0FE: DEC R01
"001001" & X"010", -- 0x0FF: MOVC R00, (R01)
"111011" & X"0E7", -- 0x100: CALL 0x0E7
"010101" & X"011", -- 0x101: DEC R01
"001001" & X"010", -- 0x102: MOVC R00, (R01)
"111011" & X"0E7", -- 0x103: CALL 0x0E7
"111101" & X"000", -- 0x104: POP R00
"111110" & X"000", -- 0x105: RET
"111100" & X"000", -- 0x106: PUSH R00
"000011" & X"C00", -- 0x107: MOV R00, 0xC0
"111011" & X"145", -- 0x108: CALL 0x145
"000101" & X"870", -- 0x109: MOVX R00, (0x87)
"111011" & X"0E7", -- 0x10A: CALL 0x0E7
"000101" & X"860", -- 0x10B: MOVX R00, (0x86)
"111011" & X"0E7", -- 0x10C: CALL 0x0E7
"000101" & X"850", -- 0x10D: MOVX R00, (0x85)
"111011" & X"0E7", -- 0x10E: CALL 0x0E7
"000101" & X"840", -- 0x10F: MOVX R00, (0x84)
"111011" & X"0E7", -- 0x110: CALL 0x0E7
"000101" & X"830", -- 0x111: MOVX R00, (0x83)
"111011" & X"0E7", -- 0x112: CALL 0x0E7
"000101" & X"820", -- 0x113: MOVX R00, (0x82)
"111011" & X"0E7", -- 0x114: CALL 0x0E7
"000101" & X"810", -- 0x115: MOVX R00, (0x81)
"111011" & X"0E7", -- 0x116: CALL 0x0E7
"000101" & X"800", -- 0x117: MOVX R00, (0x80)
"111011" & X"0E7", -- 0x118: CALL 0x0E7
"111101" & X"000", -- 0x119: POP R00
"111110" & X"000", -- 0x11A: RET
"011001" & X"0F0", -- 0x11B: AND R00, 0x0F
"001111" & X"0A0", -- 0x11C: CMP R00, 0x0A
"110101" & X"11F", -- 0x11D: JLT 0x11F
"010001" & X"070", -- 0x11E: ADD R00, 0x07
"010001" & X"300", -- 0x11F: ADD R00, 0x30
"111110" & X"000", -- 0x120: RET
"111100" & X"000", -- 0x121: PUSH R00
"111011" & X"11B", -- 0x122: CALL 0x11B
"000010" & X"001", -- 0x123: MOV R01, R00
"111101" & X"000", -- 0x124: POP R00
"101010" & X"000", -- 0x125: SWAP R00
"111011" & X"11B", -- 0x126: CALL 0x11B
"111110" & X"000", -- 0x127: RET
"000011" & X"002", -- 0x128: MOV R02, 0x00
"000011" & X"030", -- 0x129: MOV R00, 0x03
"111011" & X"174", -- 0x12A: CALL 0x174
"111011" & X"1CD", -- 0x12B: CALL 0x1CD
"000011" & X"002", -- 0x12C: MOV R02, 0x00
"000011" & X"030", -- 0x12D: MOV R00, 0x03
"111011" & X"174", -- 0x12E: CALL 0x174
"111011" & X"1CD", -- 0x12F: CALL 0x1CD
"000011" & X"002", -- 0x130: MOV R02, 0x00
"000011" & X"020", -- 0x131: MOV R00, 0x02
"111011" & X"174", -- 0x132: CALL 0x174
"111011" & X"1D4", -- 0x133: CALL 0x1D4
"000011" & X"280", -- 0x134: MOV R00, 0x28
"111011" & X"145", -- 0x135: CALL 0x145
"000011" & X"0C0", -- 0x136: MOV R00, 0x0C
"111011" & X"145", -- 0x137: CALL 0x145
"000011" & X"060", -- 0x138: MOV R00, 0x06
"111011" & X"145", -- 0x139: CALL 0x145
"000011" & X"010", -- 0x13A: MOV R00, 0x01
"111011" & X"145", -- 0x13B: CALL 0x145
"111110" & X"000", -- 0x13C: RET
"111100" & X"000", -- 0x13D: PUSH R00
"111011" & X"168", -- 0x13E: CALL 0x168
"011001" & X"800", -- 0x13F: AND R00, 0x80
"110001" & X"143", -- 0x140: JZ 0x143
"111011" & X"1EB", -- 0x141: CALL 0x1EB
"110000" & X"13E", -- 0x142: JMP 0x13E
"111101" & X"000", -- 0x143: POP R00
"111110" & X"000", -- 0x144: RET
"111100" & X"002", -- 0x145: PUSH R02
"000011" & X"002", -- 0x146: MOV R02, 0x00
"111011" & X"161", -- 0x147: CALL 0x161
"111101" & X"002", -- 0x148: POP R02
"111110" & X"000", -- 0x149: RET
"111100" & X"000", -- 0x14A: PUSH R00
"000100" & X"010", -- 0x14B: MOVX R00, (R01)
"010001" & X"011", -- 0x14C: INC R01
"001111" & X"000", -- 0x14D: TST R00
"110001" & X"151", -- 0x14E: JZ 0x151
"111011" & X"15C", -- 0x14F: CALL 0x15C
"110000" & X"14B", -- 0x150: JMP 0x14B
"111101" & X"000", -- 0x151: POP R00
"111110" & X"000", -- 0x152: RET
"111100" & X"000", -- 0x153: PUSH R00
"001001" & X"010", -- 0x154: MOVC R00, (R01)
"010001" & X"011", -- 0x155: INC R01
"001111" & X"000", -- 0x156: TST R00
"110001" & X"15A", -- 0x157: JZ 0x15A
"111011" & X"15C", -- 0x158: CALL 0x15C
"110000" & X"154", -- 0x159: JMP 0x154
"111101" & X"000", -- 0x15A: POP R00
"111110" & X"000", -- 0x15B: RET
"111100" & X"002", -- 0x15C: PUSH R02
"000011" & X"402", -- 0x15D: MOV R02, 0x40
"111011" & X"161", -- 0x15E: CALL 0x161
"111101" & X"002", -- 0x15F: POP R02
"111110" & X"000", -- 0x160: RET
"111011" & X"13D", -- 0x161: CALL 0x13D
"111100" & X"000", -- 0x162: PUSH R00
"101010" & X"000", -- 0x163: SWAP R00
"111011" & X"174", -- 0x164: CALL 0x174
"111101" & X"000", -- 0x165: POP R00
"111011" & X"174", -- 0x166: CALL 0x174
"111110" & X"000", -- 0x167: RET
"111100" & X"002", -- 0x168: PUSH R02
"000011" & X"002", -- 0x169: MOV R02, 0x00
"111011" & X"16D", -- 0x16A: CALL 0x16D
"111101" & X"002", -- 0x16B: POP R02
"111110" & X"000", -- 0x16C: RET
"111011" & X"187", -- 0x16D: CALL 0x187
"101010" & X"000", -- 0x16E: SWAP R00
"111100" & X"000", -- 0x16F: PUSH R00
"111011" & X"187", -- 0x170: CALL 0x187
"111101" & X"002", -- 0x171: POP R02
"011010" & X"020", -- 0x172: OR R00, R02
"111110" & X"000", -- 0x173: RET
"111100" & X"001", -- 0x174: PUSH R01
"011001" & X"0F0", -- 0x175: AND R00, 0x0F
"000010" & X"001", -- 0x176: MOV R01, R00
"011010" & X"021", -- 0x177: OR R01, R02
"100100" & X"031", -- 0x178: XOUT (0x03), R01
"111011" & X"1EB", -- 0x179: CALL 0x1EB
"000010" & X"001", -- 0x17A: MOV R01, R00
"011010" & X"021", -- 0x17B: OR R01, R02
"011011" & X"801", -- 0x17C: OR R01, 0x80
"100100" & X"031", -- 0x17D: XOUT (0x03), R01
"111011" & X"1EB", -- 0x17E: CALL 0x1EB
"000010" & X"001", -- 0x17F: MOV R01, R00
"011010" & X"021", -- 0x180: OR R01, R02
"100100" & X"031", -- 0x181: XOUT (0x03), R01
"111011" & X"1EB", -- 0x182: CALL 0x1EB
"011011" & X"201", -- 0x183: OR R01, 0x20
"100100" & X"031", -- 0x184: XOUT (0x03), R01
"111101" & X"001", -- 0x185: POP R01
"111110" & X"000", -- 0x186: RET
"111100" & X"001", -- 0x187: PUSH R01
"000011" & X"201", -- 0x188: MOV R01, 0x20
"011010" & X"021", -- 0x189: OR R01, R02
"100100" & X"031", -- 0x18A: XOUT (0x03), R01
"111011" & X"1EB", -- 0x18B: CALL 0x1EB
"000011" & X"201", -- 0x18C: MOV R01, 0x20
"011010" & X"021", -- 0x18D: OR R01, R02
"011011" & X"801", -- 0x18E: OR R01, 0x80
"100100" & X"031", -- 0x18F: XOUT (0x03), R01
"111011" & X"1EB", -- 0x190: CALL 0x1EB
"101000" & X"030", -- 0x191: XIN R00, (0x03)
"011001" & X"0F0", -- 0x192: AND R00, 0x0F
"000011" & X"201", -- 0x193: MOV R01, 0x20
"011010" & X"021", -- 0x194: OR R01, R02
"100100" & X"031", -- 0x195: XOUT (0x03), R01
"111011" & X"1EB", -- 0x196: CALL 0x1EB
"111101" & X"001", -- 0x197: POP R01
"111110" & X"000", -- 0x198: RET
"111100" & X"000", -- 0x199: PUSH R00
"000011" & X"020", -- 0x19A: MOV R00, 0x02
"100100" & X"0E0", -- 0x19B: XOUT (0x0E), R00
"111101" & X"000", -- 0x19C: POP R00
"111110" & X"000", -- 0x19D: RET
"111100" & X"000", -- 0x19E: PUSH R00
"000011" & X"010", -- 0x19F: MOV R00, 0x01
"100100" & X"0E0", -- 0x1A0: XOUT (0x0E), R00
"111101" & X"000", -- 0x1A1: POP R00
"111110" & X"000", -- 0x1A2: RET
"111011" & X"1B9", -- 0x1A3: CALL 0x1B9
"100100" & X"0C1", -- 0x1A4: XOUT (0x0C), R01
"100100" & X"0B0", -- 0x1A5: XOUT (0x0B), R00
"111110" & X"000", -- 0x1A6: RET
"111011" & X"1B9", -- 0x1A7: CALL 0x1B9
"100100" & X"0D0", -- 0x1A8: XOUT (0x0D), R00
"111110" & X"000", -- 0x1A9: RET
"111100" & X"000", -- 0x1AA: PUSH R00
"000100" & X"010", -- 0x1AB: MOVX R00, (R01)
"010001" & X"011", -- 0x1AC: INC R01
"001111" & X"000", -- 0x1AD: TST R00
"110001" & X"1B1", -- 0x1AE: JZ 0x1B1
"111011" & X"1A7", -- 0x1AF: CALL 0x1A7
"110000" & X"1AB", -- 0x1B0: JMP 0x1AB
"111101" & X"000", -- 0x1B1: POP R00
"111110" & X"000", -- 0x1B2: RET
"111011" & X"199", -- 0x1B3: CALL 0x199
"111011" & X"1AA", -- 0x1B4: CALL 0x1AA
"111110" & X"000", -- 0x1B5: RET
"111011" & X"1AA", -- 0x1B6: CALL 0x1AA
"111011" & X"199", -- 0x1B7: CALL 0x199
"111110" & X"000", -- 0x1B8: RET
"111100" & X"000", -- 0x1B9: PUSH R00
"101000" & X"0E0", -- 0x1BA: XIN R00, (0x0E)
"011001" & X"020", -- 0x1BB: AND R00, 0x02
"110001" & X"1BA", -- 0x1BC: JZ 0x1BA
"111101" & X"000", -- 0x1BD: POP R00
"111110" & X"000", -- 0x1BE: RET
"111100" & X"00F", -- 0x1BF: PUSH R15
"000011" & X"0AF", -- 0x1C0: MOV R15, 0x0A
"111011" & X"1C6", -- 0x1C1: CALL 0x1C6
"010101" & X"01F", -- 0x1C2: DEC R15
"110010" & X"1C1", -- 0x1C3: JNZ 0x1C1
"111101" & X"00F", -- 0x1C4: POP R15
"111110" & X"000", -- 0x1C5: RET
"111100" & X"00F", -- 0x1C6: PUSH R15
"000011" & X"0AF", -- 0x1C7: MOV R15, 0x0A
"111011" & X"1CD", -- 0x1C8: CALL 0x1CD
"010101" & X"01F", -- 0x1C9: DEC R15
"110010" & X"1C8", -- 0x1CA: JNZ 0x1C8
"111101" & X"00F", -- 0x1CB: POP R15
"111110" & X"000", -- 0x1CC: RET
"111100" & X"00F", -- 0x1CD: PUSH R15
"000011" & X"0AF", -- 0x1CE: MOV R15, 0x0A
"111011" & X"1D4", -- 0x1CF: CALL 0x1D4
"010101" & X"01F", -- 0x1D0: DEC R15
"110010" & X"1CF", -- 0x1D1: JNZ 0x1CF
"111101" & X"00F", -- 0x1D2: POP R15
"111110" & X"000", -- 0x1D3: RET
"111100" & X"00F", -- 0x1D4: PUSH R15
"000011" & X"0AF", -- 0x1D5: MOV R15, 0x0A
"111011" & X"1DB", -- 0x1D6: CALL 0x1DB
"010101" & X"01F", -- 0x1D7: DEC R15
"110010" & X"1D6", -- 0x1D8: JNZ 0x1D6
"111101" & X"00F", -- 0x1D9: POP R15
"111110" & X"000", -- 0x1DA: RET
"111100" & X"00F", -- 0x1DB: PUSH R15
"000011" & X"0AF", -- 0x1DC: MOV R15, 0x0A
"111011" & X"1E2", -- 0x1DD: CALL 0x1E2
"010101" & X"01F", -- 0x1DE: DEC R15
"110010" & X"1DD", -- 0x1DF: JNZ 0x1DD
"111101" & X"00F", -- 0x1E0: POP R15
"111110" & X"000", -- 0x1E1: RET
"111100" & X"00F", -- 0x1E2: PUSH R15
"000011" & X"63F", -- 0x1E3: MOV R15, 0x63
"000000" & X"000", -- 0x1E4: NOP
"000000" & X"000", -- 0x1E5: NOP
"000000" & X"000", -- 0x1E6: NOP
"010101" & X"01F", -- 0x1E7: DEC R15
"110010" & X"1E4", -- 0x1E8: JNZ 0x1E4
"111101" & X"00F", -- 0x1E9: POP R15
"111110" & X"000", -- 0x1EA: RET
"111100" & X"00F", -- 0x1EB: PUSH R15
"000011" & X"09F", -- 0x1EC: MOV R15, 0x09
"000000" & X"000", -- 0x1ED: NOP
"000000" & X"000", -- 0x1EE: NOP
"000000" & X"000", -- 0x1EF: NOP
"010101" & X"01F", -- 0x1F0: DEC R15
"110010" & X"1ED", -- 0x1F1: JNZ 0x1ED
"111101" & X"00F", -- 0x1F2: POP R15
"111110" & X"000", -- 0x1F3: RET
"111100" & X"001", -- 0x1F4: PUSH R01
"101000" & X"061", -- 0x1F5: XIN R01, (0x06)
"011001" & X"021", -- 0x1F6: AND R01, 0x02
"110010" & X"1F5", -- 0x1F7: JNZ 0x1F5
"100100" & X"020", -- 0x1F8: XOUT (0x02), R00
"111101" & X"001", -- 0x1F9: POP R01
"111110" & X"000", -- 0x1FA: RET
"111100" & X"001", -- 0x1FB: PUSH R01
"101000" & X"061", -- 0x1FC: XIN R01, (0x06)
"011001" & X"101", -- 0x1FD: AND R01, 0x10
"110001" & X"1FC", -- 0x1FE: JZ 0x1FC
"101000" & X"020", -- 0x1FF: XIN R00, (0x02)
"111101" & X"001", -- 0x200: POP R01
"111110" & X"000", -- 0x201: RET
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000",
"000000" & X"000"
);
signal jtag_ld_clk : STD_LOGIC;
signal jtag_ld_we : STD_LOGIC;
signal jtag_ld_addr : inst_addr_t;
signal jtag_ld_dout : inst_t;
signal jtag_ld_din : inst_t;
signal bs_rst, bs_sel, bs_shift, bs_tdi, bs_tdo : std_logic;
signal bs_capture, bs_clk0, bs_clk1, bs_update0, bs_update1 : std_logic;
signal user_regi, user_rego : unsigned (31 downto 0);
constant id : unsigned (31 downto 0) := X"BABE" & X"BEEF";
begin
--------------------------------------------------------------------------
-- Virtex-4: JTAG Loader
--------------------------------------------------------------------------
i00_BUFG : BUFG
port map
(
O => bs_clk1,
I => bs_clk0
);
i01_BUFG : BUFG
port map
(
O => bs_update1,
I => bs_update0
);
BSCAN_VIRTEX4_inst1 : BSCAN_VIRTEX4
generic map
(
JTAG_CHAIN => 1 -- Value to set BSCAN site of device. Possible values: (1,2,3 or 4)
)
port map
(
CAPTURE => bs_capture, -- CAPTURE output from TAP controller
DRCK => bs_clk0, -- Data register output for USER functions
RESET => bs_rst, -- Reset output from TAP controller
SEL => bs_sel, -- USER active output
SHIFT => bs_shift, -- SHIFT output from TAP controller
TDI => bs_tdi, -- TDI output from TAP controller
UPDATE => bs_update0, -- UPDATE output from TAP controller
TDO => bs_tdo -- Data input for USER function
);
jtag_ld_addr <= user_regi(user_regi'left downto user_regi'left-inst_addr_t'length+1);
jtag_ld_din <= user_regi(inst_t'length-1 downto 0);
jtag_ld_clk <= bs_update1;
jtag_ld_we <= bs_sel;
sipo:
process (bs_rst, bs_clk1, bs_tdi, bs_shift)
begin
if bs_rst = '1' then
user_regi <= (others => '0');
elsif rising_edge(bs_clk1) then
if bs_shift = '1' then
user_regi <= bs_tdi & user_regi(user_regi'left downto 1);
end if;
end if;
end process;
piso:
process (bs_rst, bs_clk1, bs_shift, user_rego)
begin
bs_tdo <= user_rego(0);
if bs_rst = '1' then
user_rego <= (others => '0');
elsif rising_edge(bs_clk1) then
if bs_shift = '1' then
user_rego <= user_rego(0) & user_rego(user_rego'left downto 1);
else
user_rego <= (user_rego'left downto inst_t'length => '0') & jtag_ld_dout;
-- user_rego <= id;
end if;
end if;
end process;
--------------------------------------------------------------------------
-- ROM Read/Write
--------------------------------------------------------------------------
PROM_READ:
process(clk, ce)
begin
if rising_edge(clk) and ce = '1' then
dout <= imem_rom(to_integer(addr));
end if;
end process;
PROM_WRITE:
process(jtag_ld_clk, jtag_ld_we)
begin
if rising_edge(jtag_ld_clk) then
if jtag_ld_we = '1' then
imem_rom(to_integer(jtag_ld_addr)) <= jtag_ld_din;
else
jtag_ld_dout <= imem_rom(to_integer(jtag_ld_addr));
end if;
end if;
end process;
--------------------------------------------------------------------------
end loadable;
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