FreeCalypso > hg > freecalypso-sw
comparison target-utils/libcommon/cmd_w8.c @ 16:4c78fc688127
w8/w16/w32 implemented
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Fri, 03 May 2013 07:27:53 +0000 |
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15:d60806c703aa | 16:4c78fc688127 |
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1 /* | |
2 * w8 hexaddr xx -- write an 8-bit register or memory location | |
3 */ | |
4 | |
5 #include <sys/types.h> | |
6 #include "types.h" | |
7 | |
8 void | |
9 cmd_w8(argbulk) | |
10 char *argbulk; | |
11 { | |
12 char *argv[3]; | |
13 u_long addr, data; | |
14 | |
15 if (parse_args(argbulk, 2, 2, argv, 0) < 0) | |
16 return; | |
17 if (parse_hexarg(argv[0], 8, &addr) < 0) { | |
18 printf("ERROR: arg1 must be a valid 32-bit hex address\n"); | |
19 return; | |
20 } | |
21 if (parse_hexarg(argv[1], 2, &data) < 0) { | |
22 printf("ERROR: arg2 must be a valid 8-bit hex value\n"); | |
23 return; | |
24 } | |
25 *(volatile u8 *)addr = data; | |
26 } |