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Add support in printf command to send 8-32 bits value

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This commit is contained in:
Alan C. Assis
2021-01-25 14:58:40 -03:00
committed by Xiang Xiao
parent 8a19fe36e1
commit 382638c8c6
1 changed files with 21 additions and 1 deletions
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22
nshlib/nsh_printf.c
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@@ -63,6 +63,8 @@ int cmd_printf(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{ {
FAR char *fmt; FAR char *fmt;
char ch; char ch;
uint32_t value;
int len;
int i; int i;
/* parse each argument, detecting the right action to take /* parse each argument, detecting the right action to take
@@ -84,7 +86,25 @@ int cmd_printf(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{ {
case 'x': case 'x':
fmt++; fmt++;
nsh_output(vtbl, "%c", strtol(fmt, NULL, 16)); value = strtoul(fmt, NULL, 16);
len = strnlen(fmt, 10);
if (len >= 7)
{
nsh_output(vtbl, "%c%c%c%c", value & 0xff,
(value & 0xff00) >> 8,
(value & 0xff0000) >> 16,
(value & 0xff000000) >> 24);
}
else if (len >= 3)
{
nsh_output(vtbl, "%c%c", value & 0xff,
(value & 0xff00) >> 8);
}
else if (len >= 1)
{
nsh_output(vtbl, "%c", value & 0xff);
}
break; break;
case 'n': case 'n':