mirror of
https://github.com/trcwm/Speech256.git
synced 2025-06-07 16:48:32 +02:00
117 lines
3.2 KiB
Python
117 lines
3.2 KiB
Python
#
|
|
# Generate control rom for Speech256 project
|
|
#
|
|
# Copyright N.A. Moseley 2017 / Moseley Instruments
|
|
#
|
|
# The control rom is in a slightly different format
|
|
# than we need for the Verilog code, so in addition
|
|
# to making a ROM directry, we massage it a bit...
|
|
#
|
|
|
|
VerilogHeader = """
|
|
// This file was auto-generated,
|
|
// do not modify by hand!
|
|
|
|
module CTRLROM (
|
|
clk,
|
|
en,
|
|
addr,
|
|
data
|
|
);
|
|
input clk;
|
|
input en;
|
|
input [11:0] addr;
|
|
output reg [7:0] data;
|
|
|
|
always @(posedge clk)
|
|
begin
|
|
if (en)
|
|
case(addr)
|
|
"""
|
|
|
|
VerilogFooter = """ default: data <= 8'bXXXXXXXX;
|
|
endcase
|
|
end
|
|
endmodule
|
|
"""
|
|
|
|
RomAddress = 0;
|
|
|
|
def emitRomByte(b):
|
|
global RomAddress
|
|
global fout
|
|
fout.write(" 12'd"+str(RomAddress)+": data <= 8'd" + str(b) + ";\n")
|
|
RomAddress = RomAddress + 1;
|
|
|
|
def convertFilterCoeff(c):
|
|
# turn c into negative 8-bit number
|
|
# 1 -> 255
|
|
# 2 -> 254
|
|
# 255 -> 1
|
|
# 254 -> 2
|
|
# 128 -> xxx
|
|
# 0 -> 0
|
|
if (c == 0):
|
|
return 0
|
|
|
|
return (256-c);
|
|
|
|
fout = open('ctrlrom.v','wt')
|
|
|
|
with open('ctrlrom.hex', 'r') as fp:
|
|
hex_list = fp.readlines()
|
|
|
|
|
|
cmd_list = [int(c,16) for c in hex_list];
|
|
|
|
# generate header
|
|
fout.write(VerilogHeader)
|
|
|
|
# generate jump table
|
|
for I in range(0,0x7E):
|
|
emitRomByte(cmd_list[I])
|
|
|
|
counter = 0x7E
|
|
while (counter < len(cmd_list)):
|
|
cmd = cmd_list[counter];
|
|
if (cmd == 0): # JUMP INSTRUCTION
|
|
print("?")
|
|
elif (cmd == 1): # SET AMP AND PITCH
|
|
emitRomByte(cmd)
|
|
emitRomByte(cmd_list[counter+1]) # AMP LSB
|
|
emitRomByte(cmd_list[counter+2]) # AMP MSB
|
|
emitRomByte(cmd_list[counter+3]) # DUR
|
|
emitRomByte(cmd_list[counter+4]) # PITCH
|
|
counter = counter + 4
|
|
#print("SET AMP+PITCH")
|
|
elif (cmd == 2): # SET COEFFICIENTS
|
|
emitRomByte(cmd)
|
|
emitRomByte(cmd_list[counter+1]) # AMP LSB
|
|
emitRomByte(cmd_list[counter+2]) # AMP MSB
|
|
emitRomByte(cmd_list[counter+3]) # DUR
|
|
emitRomByte(cmd_list[counter+4]) # PITCH
|
|
emitRomByte(convertFilterCoeff(cmd_list[counter+10])) # F6
|
|
emitRomByte(convertFilterCoeff(cmd_list[counter+10+6])) # B6
|
|
emitRomByte(convertFilterCoeff(cmd_list[counter+9])) # F5
|
|
emitRomByte(convertFilterCoeff(cmd_list[counter+9+6])) # B5
|
|
emitRomByte(convertFilterCoeff(cmd_list[counter+8])) # F4
|
|
emitRomByte(convertFilterCoeff(cmd_list[counter+8+6])) # B4
|
|
emitRomByte(convertFilterCoeff(cmd_list[counter+7])) # F3
|
|
emitRomByte(convertFilterCoeff(cmd_list[counter+7+6])) # B3
|
|
emitRomByte(convertFilterCoeff(cmd_list[counter+6])) # F2
|
|
emitRomByte(convertFilterCoeff(cmd_list[counter+6+6])) # B2
|
|
emitRomByte(convertFilterCoeff(cmd_list[counter+5])) # F1
|
|
emitRomByte(convertFilterCoeff(cmd_list[counter+5+6])) # B1
|
|
counter = counter + 4 + 12
|
|
#print("SET COEFFS")
|
|
elif (cmd == 15): # SET COEFFICIENTS: # END OF COMMAND / 15
|
|
emitRomByte(cmd)
|
|
else:
|
|
print("*** ERROR ***")
|
|
break
|
|
counter = counter + 1
|
|
|
|
# generate footer
|
|
fout.write(VerilogFooter)
|
|
|
|
fout.close() |