mirror of
https://github.com/hoglet67/AtomBusMon.git
synced 2024-06-17 11:29:31 +00:00
Implemented 6502 register access functionality with the embedded core
Change-Id: I0edaa48ddfb4b7057e1dde25895513bcaf395b07
This commit is contained in:
David Banks
parent
2675a5a408
commit
2fc7485d9c
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@ -17,7 +17,7 @@
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@ -237,6 +237,10 @@
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125
AtomCpuMon.xise
125
AtomCpuMon.xise
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@ -20,243 +20,243 @@
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|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
<file xil_pn:name="src/AVR8/spi_mod/spi_mod.vhd" xil_pn:type="FILE_VHDL">
|
||||
<association xil_pn:name="BehavioralSimulation" xil_pn:seqID="113"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="37"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
<file xil_pn:name="src/AVR8/spi_mod/spi_slv_sel_comp_pack.vhd" xil_pn:type="FILE_VHDL">
|
||||
<association xil_pn:name="BehavioralSimulation" xil_pn:seqID="114"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="35"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
<file xil_pn:name="src/AVR8/spi_mod/spi_slv_sel.vhd" xil_pn:type="FILE_VHDL">
|
||||
<association xil_pn:name="BehavioralSimulation" xil_pn:seqID="115"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="36"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
<file xil_pn:name="src/AVR8/uC/AVR_uC_CompPack.vhd" xil_pn:type="FILE_VHDL">
|
||||
<association xil_pn:name="BehavioralSimulation" xil_pn:seqID="116"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="34"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
<file xil_pn:name="src/AVR8/uC/AVR8.vhd" xil_pn:type="FILE_VHDL">
|
||||
<association xil_pn:name="BehavioralSimulation" xil_pn:seqID="117"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="55"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
<file xil_pn:name="src/AVR8/uC/external_mux.vhd" xil_pn:type="FILE_VHDL">
|
||||
<association xil_pn:name="BehavioralSimulation" xil_pn:seqID="119"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="33"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
<file xil_pn:name="src/AVR8/uC/ExtIRQ_Controller.vhd" xil_pn:type="FILE_VHDL">
|
||||
<association xil_pn:name="BehavioralSimulation" xil_pn:seqID="120"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="32"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
<file xil_pn:name="src/AVR8/uC/RAMDataReg.vhd" xil_pn:type="FILE_VHDL">
|
||||
<association xil_pn:name="BehavioralSimulation" xil_pn:seqID="121"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="31"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
<file xil_pn:name="src/AVR8/uC/ResetGenerator.vhd" xil_pn:type="FILE_VHDL">
|
||||
<association xil_pn:name="BehavioralSimulation" xil_pn:seqID="122"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="30"/>
|
||||
</file>
|
||||
<file xil_pn:name="src/AtomBusMon.vhd" xil_pn:type="FILE_VHDL">
|
||||
<association xil_pn:name="BehavioralSimulation" xil_pn:seqID="123"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="58"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
<file xil_pn:name="src/DCM/DCM0.vhd" xil_pn:type="FILE_VHDL">
|
||||
<association xil_pn:name="BehavioralSimulation" xil_pn:seqID="124"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="54"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
<file xil_pn:name="ipcore_dir/WatchEvents.xco" xil_pn:type="FILE_COREGEN">
|
||||
<association xil_pn:name="BehavioralSimulation" xil_pn:seqID="125"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="56"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
<file xil_pn:name="src/AtomCpuMon.bmm" xil_pn:type="FILE_BMM">
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
<file xil_pn:name="src/BusMonCore.vhd" xil_pn:type="FILE_VHDL">
|
||||
<association xil_pn:name="BehavioralSimulation" xil_pn:seqID="123"/>
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="123"/>
|
||||
</file>
|
||||
<file xil_pn:name="ipcore_dir/WatchEvents.xise" xil_pn:type="FILE_COREGENISE">
|
||||
<association xil_pn:name="Implementation" xil_pn:seqID="0"/>
|
||||
</file>
|
||||
|
|
@ -536,6 +536,7 @@
|
|||
<property xil_pn:name="Use Synchronous Reset" xil_pn:value="Yes" xil_pn:valueState="default"/>
|
||||
<property xil_pn:name="Use Synchronous Set" xil_pn:value="Yes" xil_pn:valueState="default"/>
|
||||
<property xil_pn:name="Use Synthesis Constraints File" xil_pn:value="true" xil_pn:valueState="default"/>
|
||||
<property xil_pn:name="User Browsed Strategy Files" xil_pn:value="" xil_pn:valueState="default"/>
|
||||
<property xil_pn:name="UserID Code (8 Digit Hexadecimal)" xil_pn:value="0xFFFFFFFF" xil_pn:valueState="default"/>
|
||||
<property xil_pn:name="VHDL Source Analysis Standard" xil_pn:value="VHDL-93" xil_pn:valueState="default"/>
|
||||
<property xil_pn:name="Value Range Check" xil_pn:value="false" xil_pn:valueState="default"/>
|
||||
|
|
|
|||
|
|
@ -10,6 +10,8 @@
|
|||
#define CTRL_DDR DDRB
|
||||
#define CTRL_DIN PINB
|
||||
|
||||
#define MUXSEL_PORT PORTD
|
||||
|
||||
#define STATUS_PORT PORTD
|
||||
#define STATUS_DDR DDRD
|
||||
#define STATUS_DIN PIND
|
||||
|
|
@ -26,6 +28,15 @@
|
|||
#define OFFSET_BW_BAH 5
|
||||
#define OFFSET_BW_M 6
|
||||
|
||||
#define OFFSET_REG_A 8
|
||||
#define OFFSET_REG_X 9
|
||||
#define OFFSET_REG_Y 10
|
||||
#define OFFSET_REG_P 11
|
||||
#define OFFSET_REG_SPL 12
|
||||
#define OFFSET_REG_SPH 13
|
||||
#define OFFSET_REG_PCL 14
|
||||
#define OFFSET_REG_PCH 15
|
||||
|
||||
// Commands
|
||||
// 000x Enable/Disable single strpping
|
||||
// 001x Enable/Disable breakpoints / watches
|
||||
|
|
@ -44,8 +55,8 @@
|
|||
// Control bits
|
||||
#define CMD_MASK 0x1F
|
||||
#define CMD_EDGE 0x10
|
||||
#define MUX_SEL_MASK 0xE0
|
||||
#define MUX_SEL_BIT 5
|
||||
#define MUXSEL_MASK 0x0F
|
||||
#define MUXSEL_BIT 0
|
||||
|
||||
// Status bits
|
||||
#define INTERRUPTED_MASK 0x40
|
||||
|
|
@ -95,9 +106,14 @@ char *triggerStrings[NUM_TRIGGERS] = {
|
|||
};
|
||||
|
||||
|
||||
#define VERSION "0.22"
|
||||
#define VERSION "0.23"
|
||||
|
||||
#ifdef EMBEDDED_6502
|
||||
#define NUM_CMDS 20
|
||||
#else
|
||||
#define NUM_CMDS 19
|
||||
#endif
|
||||
|
||||
#define MAXBKPTS 8
|
||||
|
||||
int numbkpts = 0;
|
||||
|
|
@ -142,6 +158,9 @@ unsigned int triggers[MAXBKPTS] = {
|
|||
|
||||
char *cmdStrings[NUM_CMDS] = {
|
||||
"help",
|
||||
#ifdef EMBEDDED_6502
|
||||
"regs",
|
||||
#endif
|
||||
"reset",
|
||||
"step",
|
||||
"trace",
|
||||
|
|
@ -220,19 +239,19 @@ void hwCmd(unsigned int cmd, unsigned int param) {
|
|||
}
|
||||
|
||||
unsigned int hwRead8(unsigned int offset) {
|
||||
CTRL_PORT &= ~MUX_SEL_MASK;
|
||||
CTRL_PORT |= offset << MUX_SEL_BIT;
|
||||
MUXSEL_PORT &= ~MUXSEL_MASK;
|
||||
MUXSEL_PORT |= offset << MUXSEL_BIT;
|
||||
Delay_us(1);
|
||||
return MUX_DIN;
|
||||
}
|
||||
|
||||
unsigned int hwRead16(unsigned int offset) {
|
||||
unsigned int lsb;
|
||||
CTRL_PORT &= ~MUX_SEL_MASK;
|
||||
CTRL_PORT |= offset << MUX_SEL_BIT;
|
||||
MUXSEL_PORT &= ~MUXSEL_MASK;
|
||||
MUXSEL_PORT |= offset << MUXSEL_BIT;
|
||||
Delay_us(1);
|
||||
lsb = MUX_DIN;
|
||||
CTRL_PORT |= 1 << MUX_SEL_BIT;
|
||||
MUXSEL_PORT |= 1 << MUXSEL_BIT;
|
||||
Delay_us(1);
|
||||
return (MUX_DIN << 8) | lsb;
|
||||
}
|
||||
|
|
@ -257,6 +276,7 @@ void version() {
|
|||
}
|
||||
|
||||
|
||||
#ifdef LCD
|
||||
void lcdAddr(unsigned int addr) {
|
||||
int i;
|
||||
int nibble;
|
||||
|
|
@ -271,8 +291,9 @@ void lcdAddr(unsigned int addr) {
|
|||
}
|
||||
lcd_putc(nibble);
|
||||
}
|
||||
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
void logMode(unsigned int mode) {
|
||||
int i;
|
||||
|
|
@ -356,7 +377,9 @@ void doCmdHelp(char *params) {
|
|||
void doCmdAddr() {
|
||||
unsigned int i_addr = hwRead16(OFFSET_IAL);
|
||||
// Update the LCD display
|
||||
#ifdef LCD
|
||||
lcdAddr(i_addr);
|
||||
#endif
|
||||
// Update the serial console
|
||||
log0("%04X\n", i_addr);
|
||||
}
|
||||
|
|
@ -397,6 +420,18 @@ void doCmdReset(char *params) {
|
|||
hwCmd(CMD_RESET, 0);
|
||||
}
|
||||
|
||||
#ifdef EMBEDDED_6502
|
||||
void doCmdRegs(char *params) {
|
||||
log0("A=%02x; ", hwRead8(OFFSET_REG_A));
|
||||
log0("X=%02x; ", hwRead8(OFFSET_REG_X));
|
||||
log0("Y=%02x; ", hwRead8(OFFSET_REG_Y));
|
||||
log0("P=%02x; ", hwRead8(OFFSET_REG_P));
|
||||
log0("SP=%04x; ", hwRead16(OFFSET_REG_SPL));
|
||||
log0("PC=%04x; ", hwRead16(OFFSET_REG_PCL));
|
||||
log0("\n");
|
||||
}
|
||||
#endif
|
||||
|
||||
void doCmdTrace(char *params) {
|
||||
long i;
|
||||
sscanf(params, "%ld", &i);
|
||||
|
|
@ -602,14 +637,16 @@ void doCmdContinue(char *params) {
|
|||
do {
|
||||
// Update the LCD display
|
||||
i_addr = hwRead16(OFFSET_IAL);
|
||||
#ifdef LCD
|
||||
lcdAddr(i_addr);
|
||||
#endif
|
||||
|
||||
status = STATUS_DIN;
|
||||
if (status & BW_ACTIVE_MASK) {
|
||||
cont = logDetails();
|
||||
hwCmd(CMD_WATCH_READ, 0);
|
||||
}
|
||||
if (status & INTERRUPTED_MASK) {
|
||||
if (status & INTERRUPTED_MASK || Serial_ByteRecieved0()) {
|
||||
log0("Interrupted at ");
|
||||
doCmdAddr();
|
||||
cont = 0;
|
||||
|
|
@ -617,6 +654,11 @@ void doCmdContinue(char *params) {
|
|||
Delay_us(10);
|
||||
} while (cont);
|
||||
|
||||
// Junk the interrupt character
|
||||
if (Serial_ByteRecieved0()) {
|
||||
Serial_RxByte0();
|
||||
}
|
||||
|
||||
// Enable single stepping
|
||||
setSingle(1);
|
||||
|
||||
|
|
@ -627,12 +669,14 @@ void doCmdContinue(char *params) {
|
|||
|
||||
void initialize() {
|
||||
CTRL_DDR = 255;
|
||||
STATUS_DDR = 0;
|
||||
STATUS_DDR = MUXSEL_MASK;
|
||||
MUX_DDR = 0;
|
||||
CTRL_PORT = 0;
|
||||
Serial_Init(57600,57600);
|
||||
#ifdef LCD
|
||||
lcd_init();
|
||||
lcd_puts("Addr: xxxx");
|
||||
#endif
|
||||
version();
|
||||
hwCmd(CMD_RESET, 0);
|
||||
hwCmd(CMD_FIFO_RST, 0);
|
||||
|
|
@ -642,6 +686,9 @@ void initialize() {
|
|||
|
||||
void (*cmdFuncs[NUM_CMDS])(char *params) = {
|
||||
doCmdHelp,
|
||||
#ifdef EMBEDDED_6502
|
||||
doCmdRegs,
|
||||
#endif
|
||||
doCmdReset,
|
||||
doCmdStep,
|
||||
doCmdTrace,
|
||||
|
|
@ -662,7 +709,6 @@ void (*cmdFuncs[NUM_CMDS])(char *params) = {
|
|||
doCmdContinue
|
||||
};
|
||||
|
||||
|
||||
void dispatchCmd(char *cmd) {
|
||||
int i;
|
||||
char *cmdString;
|
||||
|
|
|
|||
|
|
@ -23,7 +23,7 @@ F_CPU=15855484
|
|||
CC=avr-gcc
|
||||
OBJCOPY=avr-objcopy
|
||||
|
||||
CFLAGS=-DF_CPU=${F_CPU}UL -DSERIAL_STATUS -DCOOKED_SERIAL -DNOUSART1 -mmcu=$(MCU) -Wall -Os -mcall-prologues
|
||||
CFLAGS=-DLCD=1 -DF_CPU=${F_CPU}UL -DSERIAL_STATUS -DCOOKED_SERIAL -DNOUSART1 -mmcu=$(MCU) -Wall -Os -mcall-prologues
|
||||
|
||||
OBJECTS=AtomBusMon.o hd44780.o status.o
|
||||
|
||||
|
|
|
|||
|
|
@ -23,7 +23,7 @@ F_CPU=15855484
|
|||
CC=avr-gcc
|
||||
OBJCOPY=avr-objcopy
|
||||
|
||||
CFLAGS=-DF_CPU=${F_CPU}UL -DSERIAL_STATUS -DCOOKED_SERIAL -DNOUSART1 -mmcu=$(MCU) -Wall -Os -mcall-prologues
|
||||
CFLAGS=-DEMBEDDED_6502=1 -DF_CPU=${F_CPU}UL -DSERIAL_STATUS -DCOOKED_SERIAL -DNOUSART1 -mmcu=$(MCU) -Wall -Os -mcall-prologues
|
||||
|
||||
OBJECTS=AtomBusMon.o hd44780.o status.o
|
||||
|
||||
|
|
|
|||
|
|
@ -2,35 +2,35 @@ ADDRESS_MAP avrmap PPC405 0
|
|||
|
||||
ADDRESS_SPACE rom_code RAMB16 [0x00000000:0x00003fff]
|
||||
BUS_BLOCK
|
||||
Inst_AVR8/PM_Inst/RAM_Word0 [15:0];
|
||||
mon/Inst_AVR8/PM_Inst/RAM_Word0 [15:0];
|
||||
END_BUS_BLOCK;
|
||||
|
||||
BUS_BLOCK
|
||||
Inst_AVR8/PM_Inst/RAM_Word1 [15:0];
|
||||
mon/Inst_AVR8/PM_Inst/RAM_Word1 [15:0];
|
||||
END_BUS_BLOCK;
|
||||
|
||||
BUS_BLOCK
|
||||
Inst_AVR8/PM_Inst/RAM_Word2 [15:0];
|
||||
mon/Inst_AVR8/PM_Inst/RAM_Word2 [15:0];
|
||||
END_BUS_BLOCK;
|
||||
|
||||
BUS_BLOCK
|
||||
Inst_AVR8/PM_Inst/RAM_Word3 [15:0];
|
||||
mon/Inst_AVR8/PM_Inst/RAM_Word3 [15:0];
|
||||
END_BUS_BLOCK;
|
||||
|
||||
BUS_BLOCK
|
||||
Inst_AVR8/PM_Inst/RAM_Word4 [15:0];
|
||||
mon/Inst_AVR8/PM_Inst/RAM_Word4 [15:0];
|
||||
END_BUS_BLOCK;
|
||||
|
||||
BUS_BLOCK
|
||||
Inst_AVR8/PM_Inst/RAM_Word5 [15:0];
|
||||
mon/Inst_AVR8/PM_Inst/RAM_Word5 [15:0];
|
||||
END_BUS_BLOCK;
|
||||
|
||||
BUS_BLOCK
|
||||
Inst_AVR8/PM_Inst/RAM_Word6 [15:0];
|
||||
mon/Inst_AVR8/PM_Inst/RAM_Word6 [15:0];
|
||||
END_BUS_BLOCK;
|
||||
|
||||
BUS_BLOCK
|
||||
Inst_AVR8/PM_Inst/RAM_Word7 [15:0];
|
||||
mon/Inst_AVR8/PM_Inst/RAM_Word7 [15:0];
|
||||
END_BUS_BLOCK;
|
||||
|
||||
END_ADDRESS_SPACE;
|
||||
|
|
|
|||
|
|
@ -19,15 +19,8 @@ library ieee;
|
|||
use ieee.std_logic_1164.all;
|
||||
use ieee.std_logic_unsigned.all;
|
||||
use ieee.numeric_std.all;
|
||||
use work.OhoPack.all ;
|
||||
|
||||
|
||||
entity AtomBusMon is
|
||||
generic (
|
||||
num_comparators : integer := 8;
|
||||
reg_width : integer := 26;
|
||||
fifo_width : integer := 36
|
||||
);
|
||||
port (
|
||||
clock49 : in std_logic;
|
||||
|
||||
|
|
@ -70,311 +63,34 @@ end AtomBusMon;
|
|||
|
||||
architecture behavioral of AtomBusMon is
|
||||
|
||||
signal clock_avr : std_logic;
|
||||
signal nrst_avr : std_logic;
|
||||
signal lcd_rw_int : std_logic;
|
||||
signal lcd_db_in : std_logic_vector(7 downto 4);
|
||||
signal lcd_db_out : std_logic_vector(7 downto 4);
|
||||
signal dy_counter : std_logic_vector(31 downto 0);
|
||||
signal dy_data : y2d_type ;
|
||||
|
||||
signal mux : std_logic_vector(7 downto 0);
|
||||
signal muxsel : std_logic_vector(2 downto 0);
|
||||
signal cmd_edge : std_logic;
|
||||
signal cmd_edge1 : std_logic;
|
||||
signal cmd_edge2 : std_logic;
|
||||
signal cmd : std_logic_vector(3 downto 0);
|
||||
|
||||
signal addr_sync : std_logic_vector(15 downto 0);
|
||||
signal addr_inst : std_logic_vector(15 downto 0);
|
||||
|
||||
signal single : std_logic;
|
||||
signal reset : std_logic;
|
||||
signal step : std_logic;
|
||||
|
||||
signal bw_status : std_logic_vector(fifo_width - 16 - 1 downto 0);
|
||||
signal bw_status1 : std_logic_vector(fifo_width - 16 - 1 downto 0);
|
||||
|
||||
signal brkpt_reg : std_logic_vector(num_comparators * reg_width - 1 downto 0);
|
||||
signal brkpt_enable : std_logic;
|
||||
signal brkpt_active : std_logic;
|
||||
signal brkpt_active1 : std_logic;
|
||||
signal watch_active : std_logic;
|
||||
|
||||
signal fifo_din : std_logic_vector(fifo_width - 1 downto 0);
|
||||
signal fifo_dout : std_logic_vector(fifo_width - 1 downto 0);
|
||||
signal fifo_empty : std_logic;
|
||||
signal fifo_rd : std_logic;
|
||||
signal fifo_wr : std_logic;
|
||||
signal fifo_rst : std_logic;
|
||||
|
||||
begin
|
||||
|
||||
inst_dcm5 : entity work.DCM0 port map(
|
||||
CLKIN_IN => clock49,
|
||||
CLK0_OUT => clock_avr,
|
||||
CLK0_OUT1 => open,
|
||||
CLK2X_OUT => open
|
||||
);
|
||||
|
||||
inst_oho_dy1 : entity work.Oho_Dy1 port map (
|
||||
dy_clock => clock49,
|
||||
dy_rst_n => '1',
|
||||
dy_data => dy_data,
|
||||
dy_update => '1',
|
||||
dy_frame => open,
|
||||
dy_frameend => open,
|
||||
dy_frameend_c => open,
|
||||
dy_pwm => "1010",
|
||||
dy_counter => dy_counter,
|
||||
dy_sclk => tdin,
|
||||
dy_ser => tcclk,
|
||||
dy_rclk => tmosi
|
||||
mon : entity work.BusMonCore port map (
|
||||
clock49 => clock49,
|
||||
Addr => Addr,
|
||||
Phi2 => Phi2,
|
||||
RNW => RNW,
|
||||
Sync => Sync,
|
||||
Rdy => Rdy,
|
||||
nRST => nRST,
|
||||
trig => trig,
|
||||
lcd_rs => lcd_rs,
|
||||
lcd_rw => lcd_rw,
|
||||
lcd_e => lcd_e,
|
||||
lcd_db => lcd_db,
|
||||
avr_RxD => avr_RxD,
|
||||
avr_TxD => avr_TxD,
|
||||
sw1 => sw1,
|
||||
nsw2 => nsw2,
|
||||
led3 => led3,
|
||||
led6 => led6,
|
||||
led8 => led8,
|
||||
tmosi => tmosi,
|
||||
tdin => tdin,
|
||||
tcclk => tcclk,
|
||||
Regs => (others => '0')
|
||||
);
|
||||
|
||||
|
||||
Inst_AVR8: entity work.AVR8 port map(
|
||||
clk16M => clock_avr,
|
||||
nrst => nrst_avr,
|
||||
|
||||
portain(0) => '0',
|
||||
portain(1) => '0',
|
||||
portain(2) => '0',
|
||||
portain(3) => '0',
|
||||
portain(4) => lcd_db_in(4),
|
||||
portain(5) => lcd_db_in(5),
|
||||
portain(6) => lcd_db_in(6),
|
||||
portain(7) => lcd_db_in(7),
|
||||
|
||||
portaout(0) => lcd_rs,
|
||||
portaout(1) => lcd_rw_int,
|
||||
portaout(2) => lcd_e,
|
||||
portaout(3) => open,
|
||||
portaout(4) => lcd_db_out(4),
|
||||
portaout(5) => lcd_db_out(5),
|
||||
portaout(6) => lcd_db_out(6),
|
||||
portaout(7) => lcd_db_out(7),
|
||||
|
||||
-- Command Port
|
||||
portbin(0) => '0',
|
||||
portbin(1) => '0',
|
||||
portbin(2) => '0',
|
||||
portbin(3) => '0',
|
||||
portbin(4) => '0',
|
||||
portbin(5) => '0',
|
||||
portbin(6) => '0',
|
||||
portbin(7) => '0',
|
||||
portbout(0) => cmd(0),
|
||||
portbout(1) => cmd(1),
|
||||
portbout(2) => cmd(2),
|
||||
portbout(3) => cmd(3),
|
||||
portbout(4) => cmd_edge,
|
||||
portbout(5) => muxsel(0),
|
||||
portbout(6) => muxsel(1),
|
||||
portbout(7) => muxsel(2),
|
||||
|
||||
-- Status Port
|
||||
portdin(0) => '0',
|
||||
portdin(1) => '0',
|
||||
portdin(2) => '0',
|
||||
portdin(3) => '0',
|
||||
portdin(4) => '0',
|
||||
portdin(5) => '0',
|
||||
portdin(6) => sw1,
|
||||
portdin(7) => not fifo_empty,
|
||||
portdout => open,
|
||||
|
||||
-- Mux Port
|
||||
portein => mux,
|
||||
porteout => open,
|
||||
|
||||
spi_mosio => open,
|
||||
spi_scko => open,
|
||||
spi_misoi => '0',
|
||||
|
||||
rxd => avr_RxD,
|
||||
txd => avr_TxD
|
||||
);
|
||||
|
||||
WatchEvents_inst : entity work.WatchEvents port map(
|
||||
clk => Phi2,
|
||||
srst => fifo_rst,
|
||||
din => fifo_din,
|
||||
wr_en => fifo_wr,
|
||||
rd_en => fifo_rd,
|
||||
dout => fifo_dout,
|
||||
full => open,
|
||||
empty => fifo_empty
|
||||
);
|
||||
|
||||
|
||||
fifo_din <= bw_status1 & addr_inst;
|
||||
|
||||
lcd_rw <= lcd_rw_int;
|
||||
lcd_db <= lcd_db_out when lcd_rw_int = '0' else (others => 'Z');
|
||||
lcd_db_in <= lcd_db;
|
||||
|
||||
led3 <= not trig(0); -- red
|
||||
led6 <= not trig(1); -- red
|
||||
led8 <= not brkpt_active; -- green
|
||||
|
||||
nrst_avr <= nsw2;
|
||||
|
||||
-- OHO DY1 Display for Testing
|
||||
dy_data(0) <= hex & "0000" & Addr(3 downto 0);
|
||||
dy_data(1) <= hex & "0000" & Addr(7 downto 4);
|
||||
dy_data(2) <= hex & "0000" & "00" & (not nsw2) & sw1;
|
||||
|
||||
mux <= addr_inst(7 downto 0) when muxsel = 0 else
|
||||
addr_inst(15 downto 8) when muxsel = 1 else
|
||||
fifo_dout(7 downto 0) when muxsel = 2 else
|
||||
fifo_dout(15 downto 8) when muxsel = 3 else
|
||||
fifo_dout(23 downto 16) when muxsel = 4 else
|
||||
fifo_dout(31 downto 24) when muxsel = 5 else
|
||||
"0000" & fifo_dout(35 downto 32) when muxsel = 6 else
|
||||
"10101010";
|
||||
|
||||
-- Combinatorial set of comparators to decode breakpoint/watch addresses
|
||||
brkpt_active_process: process (brkpt_reg, brkpt_enable, Addr, Sync)
|
||||
variable i : integer;
|
||||
variable reg_addr : std_logic_vector(15 downto 0);
|
||||
variable reg_mode_bi : std_logic;
|
||||
variable reg_mode_bar : std_logic;
|
||||
variable reg_mode_baw : std_logic;
|
||||
variable reg_mode_wi : std_logic;
|
||||
variable reg_mode_war : std_logic;
|
||||
variable reg_mode_waw : std_logic;
|
||||
variable bactive : std_logic;
|
||||
variable wactive : std_logic;
|
||||
variable status : std_logic_vector(19 downto 0);
|
||||
variable trigval : std_logic;
|
||||
begin
|
||||
bactive := '0';
|
||||
wactive := '0';
|
||||
status := "00001010101010101010";
|
||||
if (brkpt_enable = '1') then
|
||||
for i in 0 to num_comparators - 1 loop
|
||||
reg_addr := brkpt_reg(i * reg_width + 15 downto i * reg_width);
|
||||
reg_mode_bi := brkpt_reg(i * reg_width + 16);
|
||||
reg_mode_bar := brkpt_reg(i * reg_width + 17);
|
||||
reg_mode_baw := brkpt_reg(i * reg_width + 18);
|
||||
reg_mode_wi := brkpt_reg(i * reg_width + 19);
|
||||
reg_mode_war := brkpt_reg(i * reg_width + 20);
|
||||
reg_mode_waw := brkpt_reg(i * reg_width + 21);
|
||||
trigval := brkpt_reg(i * reg_width + 22 + to_integer(unsigned(trig)));
|
||||
if (trigval = '1' and (Addr = reg_addr or
|
||||
(reg_mode_bi = '0' and reg_mode_bar = '0' and reg_mode_baw = '0' and
|
||||
(reg_mode_wi = '0' and reg_mode_war = '0' and reg_mode_waw = '0')))) then
|
||||
if (Sync = '1') then
|
||||
if (reg_mode_bi = '1') then
|
||||
bactive := '1';
|
||||
status := "0001" & reg_addr;
|
||||
end if;
|
||||
if (reg_mode_wi = '1') then
|
||||
wactive := '1';
|
||||
status := "1001" & reg_addr;
|
||||
end if;
|
||||
else
|
||||
if (RNW = '1') then
|
||||
if (reg_mode_bar = '1') then
|
||||
bactive := '1';
|
||||
status := "0010" & reg_addr;
|
||||
end if;
|
||||
if (reg_mode_war = '1') then
|
||||
wactive := '1';
|
||||
status := "1010" & reg_addr;
|
||||
end if;
|
||||
else
|
||||
if (reg_mode_baw = '1') then
|
||||
bactive := '1';
|
||||
status := "0100" & reg_addr;
|
||||
end if;
|
||||
if (reg_mode_waw = '1') then
|
||||
wactive := '1';
|
||||
status := "1100" & reg_addr;
|
||||
end if;
|
||||
end if;
|
||||
end if;
|
||||
end if;
|
||||
end loop;
|
||||
end if;
|
||||
watch_active <= wactive;
|
||||
brkpt_active <= bactive;
|
||||
bw_status <= status;
|
||||
end process;
|
||||
|
||||
-- 6502 Control Commands
|
||||
-- 000x Enable/Disable single strpping
|
||||
-- 001x Enable/Disable breakpoints / watches
|
||||
-- 010x Load register
|
||||
-- 011x Reset
|
||||
-- 1000 Single Step
|
||||
-- 1001 FIFO Read
|
||||
-- 1010 FIFO Reset
|
||||
syncProcess: process (Phi2)
|
||||
begin
|
||||
if rising_edge(Phi2) then
|
||||
|
||||
-- Command processing
|
||||
cmd_edge1 <= cmd_edge;
|
||||
cmd_edge2 <= cmd_edge1;
|
||||
fifo_rd <= '0';
|
||||
fifo_wr <= '0';
|
||||
fifo_rst <= '0';
|
||||
if (cmd_edge2 = '0' and cmd_edge1 = '1') then
|
||||
if (cmd(3 downto 1) = "000") then
|
||||
single <= cmd(0);
|
||||
end if;
|
||||
|
||||
if (cmd(3 downto 1) = "001") then
|
||||
brkpt_enable <= cmd(0);
|
||||
end if;
|
||||
|
||||
if (cmd(3 downto 1) = "010") then
|
||||
brkpt_reg <= cmd(0) & brkpt_reg(brkpt_reg'length - 1 downto 1);
|
||||
end if;
|
||||
|
||||
if (cmd(3 downto 1) = "011") then
|
||||
reset <= cmd(0);
|
||||
end if;
|
||||
|
||||
if (cmd(3 downto 0) = "1001") then
|
||||
fifo_rd <= '1';
|
||||
end if;
|
||||
|
||||
if (cmd(3 downto 0) = "1010") then
|
||||
fifo_rst <= '1';
|
||||
end if;
|
||||
end if;
|
||||
|
||||
-- Single Stepping
|
||||
if ((single = '0') or (cmd_edge2 = '0' and cmd_edge1 = '1' and cmd = "1000")) then
|
||||
Rdy <= (not brkpt_active);
|
||||
else
|
||||
Rdy <= (not Sync);
|
||||
end if;
|
||||
|
||||
-- 6502 Reset needs to be open collector
|
||||
if (reset = '1') then
|
||||
nRST <= '0';
|
||||
else
|
||||
nRST <= 'Z';
|
||||
end if;
|
||||
|
||||
-- Latch instruction address for the whole cycle
|
||||
if (Sync = '1') then
|
||||
addr_inst <= Addr;
|
||||
end if;
|
||||
|
||||
-- Breakpoints and Watches written to the FIFO
|
||||
brkpt_active1 <= brkpt_active;
|
||||
bw_status1 <= bw_status;
|
||||
if watch_active = '1' or (brkpt_active = '1' and brkpt_active1 = '0') then
|
||||
fifo_wr <= '1';
|
||||
end if;
|
||||
end if;
|
||||
end process;
|
||||
|
||||
end behavioral;
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -80,9 +80,11 @@ architecture behavioral of AtomCpuMon is
|
|||
signal Phi0_d : std_logic;
|
||||
signal cpu_clk : std_logic;
|
||||
|
||||
signal Regs : std_logic_vector(63 downto 0);
|
||||
|
||||
begin
|
||||
|
||||
mon : entity work.AtomBusMon port map (
|
||||
mon : entity work.BusMonCore port map (
|
||||
clock49 => clock49,
|
||||
Addr => Addr_int,
|
||||
Phi2 => Phi0,
|
||||
|
|
@ -104,7 +106,8 @@ begin
|
|||
led8 => led8,
|
||||
tmosi => tmosi,
|
||||
tdin => tdin,
|
||||
tcclk => tcclk
|
||||
tcclk => tcclk,
|
||||
Regs => Regs
|
||||
);
|
||||
|
||||
cpu_t65 : entity work.T65 port map (
|
||||
|
|
@ -122,7 +125,8 @@ begin
|
|||
A(23 downto 16) => open,
|
||||
A(15 downto 0) => Addr_int,
|
||||
DI => Din,
|
||||
DO => Dout
|
||||
DO => Dout,
|
||||
Regs => Regs
|
||||
);
|
||||
|
||||
sync_gen : process(cpu_clk, Res_n)
|
||||
|
|
@ -155,6 +159,7 @@ begin
|
|||
|
||||
Phi1 <= not (Phi0_b or Phi0_d);
|
||||
Phi2 <= Phi0_b and Phi0_d;
|
||||
|
||||
cpu_clk <= not Phi0_d;
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -90,7 +90,9 @@ entity T65 is
|
|||
VPA : out std_logic;
|
||||
A : out std_logic_vector(23 downto 0);
|
||||
DI : in std_logic_vector(7 downto 0);
|
||||
DO : out std_logic_vector(7 downto 0)
|
||||
DO : out std_logic_vector(7 downto 0);
|
||||
-- 6502 registers (MSB) PC, SP, P, Y, X, A (LSB)
|
||||
Regs : out std_logic_vector(63 downto 0)
|
||||
);
|
||||
end T65;
|
||||
|
||||
|
|
@ -185,6 +187,8 @@ begin
|
|||
VDA <= '1' when Set_Addr_To_r /= "00" else '0'; -- Incorrect !!!!!!!!!!!!
|
||||
VPA <= '1' when Jump(1) = '0' else '0'; -- Incorrect !!!!!!!!!!!!
|
||||
|
||||
Regs <= std_logic_vector(PC) & std_logic_vector(S)& P & Y(7 downto 0) & X(7 downto 0) & ABC(7 downto 0);
|
||||
|
||||
mcode : T65_MCode
|
||||
port map(
|
||||
Mode => Mode_r,
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user