+/*
+ * (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
+ *
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
/*
* Misc boot support
*/
#include "common.h"
#include <stdlib.h>
-#include <util/delay.h>
-#include <avr/pgmspace.h>
+#include <ctype.h>
+#include <util/atomic.h>
#include "command.h"
+#include "con-utils.h"
#include "z80-if.h"
+#include "z180-serv.h"
+#include "debug.h"
/* ugly hack to get Z180 loadfile into flash memory */
#define const const FLASH
hdrom_length_of_sections[sec]);
z80_bus_cmd(Request);
- z80_write_block((const FLASH unsigned char *) &hdrom[sec_base], /* src */
- hdrom_address[sec], /* dest */
+ z80_write_block_P((const FLASH unsigned char *) &hdrom[sec_base], /* src */
+ hdrom_address[sec], /* dest */
hdrom_length_of_sections[sec]); /* len */
z80_bus_cmd(Release);
sec_base+=hdrom_length_of_sections[sec];
}
}
-int do_loadf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+command_ret_t do_loadf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
(void) cmdtp; (void) flag; (void) argc; (void) argv;
- if (z80_bus_state() & ZST_RUNNING) {
+ if (z80_bus_state() & ZST_RUNNING) {
printf_P(PSTR("## Can't load while CPU is running!\n"));
- return 1;
+ return CMD_RET_FAILURE;
}
z80_load_mem();
-
- return 0;
+
+ return CMD_RET_SUCCESS;
}
-int do_busreq_pulse(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+command_ret_t do_busreq_pulse(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
uint16_t count=1;
(void) cmdtp; (void) flag;
- if (!(z80_bus_state() & ZST_RUNNING)) {
+ if (!(z80_bus_state() & ZST_RUNNING)) {
printf_P(PSTR("## CPU is not running!\n"));
- return 1;
+ return CMD_RET_FAILURE;
}
if (argc > 1)
while (count--)
z80_bus_cmd(M_Cycle);
- return 0;
+ return CMD_RET_SUCCESS;
}
-int do_go(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+command_ret_t do_go(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
uint32_t addr;
(void) cmdtp; (void) flag;
-
+
if (argc < 2)
return CMD_RET_USAGE;
addr = strtoul(argv[1], NULL, 16);
printf_P(PSTR("## Startaddress 0x%05lx too high.\n"
" (Out of logical address space (0x00000-0x0ffff))\n"),
addr);
- return 1;
- }
+ return CMD_RET_FAILURE;
+ }
- if (z80_bus_state() & ZST_RUNNING) {
+ if (z80_bus_state() & ZST_RUNNING) {
printf_P(PSTR("## CPU allready running!\n"));
- return 1;
+ return CMD_RET_FAILURE;
}
printf_P(PSTR("## Starting application at 0x%04lx ...\n"), addr);
if (addr != 0) {
uint8_t tmp[3];
uint_fast8_t i;
-
+
z80_bus_cmd(Request);
for (i = 0; i < 3; i++)
tmp[i] = z80_read(i);
z80_write(i, tmp[i]);
} else
z80_bus_cmd(Run);
-
+
z80_bus_cmd(Release);
- return 0;
+ return CMD_RET_SUCCESS;
+}
+
+static
+void reset_cpu(bus_cmd_t mode)
+{
+ restart_z180_serv();
+ z80_bus_cmd(mode);
}
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+
+command_ret_t do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
(void) cmdtp; (void) flag; (void) argc; (void) argv;
printf_P(PSTR("## CPU now in reset state.\n"));
- z80_bus_cmd(Reset);
- return 0;
+ reset_cpu(Reset);
+ return CMD_RET_SUCCESS;
}
-int do_restart(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+command_ret_t do_restart(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
(void) cmdtp; (void) flag; (void) argc; (void) argv;
- z80_bus_cmd(Restart);
+ reset_cpu(Restart);
+
+ return CMD_RET_SUCCESS;
+}
- return 0;
+static
+void print_con_usage(char esc)
+{ printf_P(PSTR("\n"
+ "------------------------------------------------\n"
+ " ?,H - This Help\n"
+ " R - Reset (Restart) CPU\n"
+ " Q,X - Return to command line\n"
+ " \\ - code input:\n"
+ " \\nnn 3 decimal digits character code\n"
+ " \\Xhh 2 hexadecimal digits character code\n"
+ " ^%c - (Escape char) Type again to send itself\n"
+ "key>"
+ ), esc + 0x40);
}
+command_ret_t do_console(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ int ch;
+ uint8_t pending;
+// uint8_t help_prompt = 0;
+ uint8_t code = 0;
+ uint8_t state = 0;
+
+ (void) cmdtp; (void) flag; (void) argc; (void) argv;
+
+
+ while (1) {
+
+ ATOMIC_BLOCK(ATOMIC_FORCEON) {
+ pending = (Stat & S_CON_PENDING) != 0;
+ Stat &= ~S_CON_PENDING;
+ }
+ if (pending)
+ while ((ch = z80_memfifo_getc(fifo_conout)) >= 0)
+ putchar(ch);
+
+ if ((ch = my_getchar(0)) >= 0) {
+ switch (state) {
+ case 0:
+ if (ch == CONFIG_ESC_CHAR) {
+ state = 1;
+ /* TODO: Timer starten */
+ } else {
+ z80_memfifo_putc(fifo_conin, ch);
+ }
+ break;
+ case 2:
+ printf_P(PSTR("\n"
+ "------------------------------------------------\n"));
+ case 1:
+ state = 0;
+ switch (toupper(ch)) {
+
+ case '?':
+ case 'H':
+ print_con_usage(CONFIG_ESC_CHAR);
+ state = 2;
+ break;
+
+ case 'R':
+ reset_cpu(Restart);
+ break;
+
+ case 'X':
+ case 'Q':
+ printf_P(PSTR("\n"));
+ goto quit;
+ break;
+
+ case '\\':
+ code = 0;
+ state = 3;
+ break;
+
+ case CONFIG_ESC_CHAR:
+ z80_memfifo_putc(fifo_conin, ch);
+ break;
+ default:
+ break;
+ }
+ break;
+ case 3:
+ if (toupper(ch) == 'X') {
+ state = 6;
+ break;
+ }
+ /* fall thru */
+ case 4:
+ case 5:
+ if (isdigit(ch)) {
+ code = code * 10 + ch - '0';
+ state++;
+ }
+ if (state > 5) {
+ z80_memfifo_putc(fifo_conin, code);
+ state = 0;
+ }
+ break;
+ case 6:
+ case 7:
+ if (isxdigit(ch)) {
+ ch = toupper(ch);
+ if (ch >= 'A')
+ ch -= 'A' - 10;
+ code = code * 16 + ch - '0';
+ state++;
+ }
+ if (state > 7) {
+ z80_memfifo_putc(fifo_conin, code);
+ state = 0;
+ }
+ break;
+ }
+ }
+ }
+quit:
+ return CMD_RET_SUCCESS;
+}
projects / z180-stamp.git / blobdiff