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Commit | Line | Data |
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534e1dfc L |
1 | |
2 | /* | |
3 | * Misc boot support | |
4 | */ | |
5 | #include "common.h" | |
6 | #include <stdlib.h> | |
89adce76 | 7 | #include <util/atomic.h> |
534e1dfc L |
8 | |
9 | #include "command.h" | |
89adce76 | 10 | #include "con-utils.h" |
534e1dfc | 11 | #include "z80-if.h" |
89adce76 | 12 | #include "z180-serv.h" |
8f23e84c | 13 | //#include "debug.h" |
534e1dfc L |
14 | |
15 | /* ugly hack to get Z180 loadfile into flash memory */ | |
16 | #define const const FLASH | |
17 | #include "../z180/hdrom.h" | |
18 | #undef const | |
19 | ||
20 | ||
21 | ||
22 | static void z80_load_mem(void) | |
23 | { | |
24 | unsigned sec = 0; | |
25 | uint32_t sec_base = hdrom_start; | |
26 | ||
27 | printf_P(PSTR("Loading Z180 memory... \n")); | |
28 | ||
29 | while (sec < hdrom_sections) { | |
30 | printf_P(PSTR(" From: 0x%.5lX to: 0x%.5lX (%5li bytes)\n"), | |
31 | hdrom_address[sec], | |
32 | hdrom_address[sec]+hdrom_length_of_sections[sec] - 1, | |
33 | hdrom_length_of_sections[sec]); | |
34 | ||
62f624d3 | 35 | z80_bus_cmd(Request); |
534e1dfc | 36 | z80_write_block((const FLASH unsigned char *) &hdrom[sec_base], /* src */ |
41d36f28 | 37 | hdrom_address[sec], /* dest */ |
534e1dfc | 38 | hdrom_length_of_sections[sec]); /* len */ |
62f624d3 | 39 | z80_bus_cmd(Release); |
534e1dfc L |
40 | sec_base+=hdrom_length_of_sections[sec]; |
41 | sec++; | |
42 | } | |
43 | } | |
44 | ||
d0581f88 | 45 | command_ret_t do_loadf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
534e1dfc L |
46 | { |
47 | (void) cmdtp; (void) flag; (void) argc; (void) argv; | |
48 | ||
6035a17b | 49 | if (z80_bus_state() & ZST_RUNNING) { |
534e1dfc | 50 | printf_P(PSTR("## Can't load while CPU is running!\n")); |
6035a17b | 51 | return CMD_RET_FAILURE; |
534e1dfc L |
52 | } |
53 | ||
54 | z80_load_mem(); | |
6035a17b | 55 | |
d0581f88 | 56 | return CMD_RET_SUCCESS; |
534e1dfc L |
57 | } |
58 | ||
59 | ||
d0581f88 | 60 | command_ret_t do_busreq_pulse(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
534e1dfc | 61 | { |
f338df2a | 62 | uint16_t count=1; |
534e1dfc | 63 | |
f338df2a | 64 | (void) cmdtp; (void) flag; |
534e1dfc | 65 | |
6035a17b | 66 | if (!(z80_bus_state() & ZST_RUNNING)) { |
f338df2a | 67 | printf_P(PSTR("## CPU is not running!\n")); |
d0581f88 | 68 | return CMD_RET_FAILURE; |
534e1dfc L |
69 | } |
70 | ||
f338df2a L |
71 | if (argc > 1) |
72 | count = (uint16_t) strtoul(argv[2], NULL, 16); | |
73 | ||
62f624d3 | 74 | z80_bus_cmd(Request); |
f338df2a | 75 | while (count--) |
62f624d3 | 76 | z80_bus_cmd(M_Cycle); |
534e1dfc | 77 | |
d0581f88 | 78 | return CMD_RET_SUCCESS; |
f338df2a L |
79 | } |
80 | ||
81 | ||
d0581f88 | 82 | command_ret_t do_go(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
f338df2a L |
83 | { |
84 | uint32_t addr; | |
85 | ||
86 | (void) cmdtp; (void) flag; | |
6035a17b | 87 | |
f338df2a L |
88 | if (argc < 2) |
89 | return CMD_RET_USAGE; | |
90 | addr = strtoul(argv[1], NULL, 16); | |
91 | if (addr >= (1UL<<16)) { | |
534e1dfc L |
92 | printf_P(PSTR("## Startaddress 0x%05lx too high.\n" |
93 | " (Out of logical address space (0x00000-0x0ffff))\n"), | |
94 | addr); | |
d0581f88 | 95 | return CMD_RET_FAILURE; |
6035a17b | 96 | } |
f338df2a | 97 | |
6035a17b | 98 | if (z80_bus_state() & ZST_RUNNING) { |
f338df2a | 99 | printf_P(PSTR("## CPU allready running!\n")); |
d0581f88 | 100 | return CMD_RET_FAILURE; |
534e1dfc L |
101 | } |
102 | ||
f338df2a L |
103 | printf_P(PSTR("## Starting application at 0x%04lx ...\n"), addr); |
104 | ||
105 | if (addr != 0) { | |
106 | uint8_t tmp[3]; | |
107 | uint_fast8_t i; | |
6035a17b | 108 | |
62f624d3 | 109 | z80_bus_cmd(Request); |
f338df2a L |
110 | for (i = 0; i < 3; i++) |
111 | tmp[i] = z80_read(i); | |
112 | z80_write(0, 0xc3); | |
113 | z80_write(1, addr); | |
114 | z80_write(2, (addr >> 8)); | |
115 | ||
62f624d3 L |
116 | z80_bus_cmd(Run); |
117 | z80_bus_cmd(M_Cycle); | |
118 | z80_bus_cmd(M_Cycle); | |
f338df2a L |
119 | for (i = 0; i < 3; i++) |
120 | z80_write(i, tmp[i]); | |
121 | } else | |
62f624d3 | 122 | z80_bus_cmd(Run); |
6035a17b | 123 | |
62f624d3 | 124 | z80_bus_cmd(Release); |
f338df2a | 125 | |
d0581f88 | 126 | return CMD_RET_SUCCESS; |
534e1dfc L |
127 | } |
128 | ||
d0581f88 | 129 | command_ret_t do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
534e1dfc L |
130 | { |
131 | (void) cmdtp; (void) flag; (void) argc; (void) argv; | |
132 | ||
133 | printf_P(PSTR("## CPU now in reset state.\n")); | |
534e1dfc | 134 | |
89adce76 | 135 | restart_z180_serv(); |
62f624d3 | 136 | z80_bus_cmd(Reset); |
d0581f88 | 137 | return CMD_RET_SUCCESS; |
534e1dfc L |
138 | } |
139 | ||
d0581f88 | 140 | command_ret_t do_restart(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
534e1dfc L |
141 | { |
142 | (void) cmdtp; (void) flag; (void) argc; (void) argv; | |
143 | ||
89adce76 | 144 | restart_z180_serv(); |
62f624d3 | 145 | z80_bus_cmd(Restart); |
534e1dfc | 146 | |
d0581f88 | 147 | return CMD_RET_SUCCESS; |
534e1dfc L |
148 | } |
149 | ||
89adce76 L |
150 | |
151 | command_ret_t do_console(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
152 | { | |
153 | int ch; | |
154 | uint8_t pending, state = 0; | |
155 | ||
156 | (void) cmdtp; (void) flag; (void) argc; (void) argv; | |
157 | ||
158 | ||
159 | while (1) { | |
160 | ||
161 | ATOMIC_BLOCK(ATOMIC_RESTORESTATE) { | |
162 | pending = (Stat & S_CON_PENDING) != 0; | |
163 | Stat &= ~S_CON_PENDING; | |
164 | } | |
165 | if (pending) | |
166 | while ((ch = z80_memfifo_getc(fifo_conout)) >= 0) | |
167 | putchar(ch); | |
168 | ||
169 | if ((ch = my_getchar(0)) >= 0) { | |
170 | switch (state) { | |
171 | case 0: | |
172 | if (ch == CONFIG_ESC_CHAR) { | |
173 | state = 1; | |
174 | /* TODO: Timer starten */ | |
175 | } else { | |
176 | z80_memfifo_putc(fifo_conin, ch); | |
177 | // serial_putc(ch); | |
178 | // if (ch == '\r') | |
179 | // serial_putc('\n'); | |
180 | } | |
181 | break; | |
182 | case 1: | |
183 | switch (ch) { | |
184 | ||
185 | case 'r': | |
186 | // z80_reset_pulse(); | |
187 | break; | |
188 | ||
189 | case 'b': | |
190 | break; | |
191 | ||
192 | case 'e': | |
193 | break; | |
194 | ||
195 | case 'q': | |
196 | case 'Q': | |
889202c4 | 197 | printf_P(PSTR("\n")); |
89adce76 L |
198 | goto quit; |
199 | break; | |
200 | ||
201 | case CONFIG_ESC_CHAR: | |
202 | default: | |
203 | z80_memfifo_putc(fifo_conin, ch); | |
204 | // serial_putc(ch); | |
205 | // if (ch == '\r') | |
206 | // serial_putc('\n'); | |
207 | } | |
208 | state = 0; | |
209 | break; | |
210 | } | |
211 | } | |
212 | ||
213 | } | |
214 | quit: | |
215 | ||
216 | return CMD_RET_SUCCESS; | |
217 | } | |
218 | ||
219 |