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In putchar(), don't open-code two calls to the prom puts routine. Instead, 

call a helper function (putonechar()).  Savings: 64 bytes.  Cha-ching!
This commit is contained in:
cgd 1999-03-31 03:10:00 +00:00
parent 3665d82d1a
commit 98f67b8238
1 changed files with 18 additions and 13 deletions
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31
sys/arch/alpha/stand/common/prom.c
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@ -1,4 +1,4 @@
/* $NetBSD: prom.c,v 1.5 1998/10/15 01:02:15 ross Exp $ */
/* $NetBSD: prom.c,v 1.6 1999/03/31 03:10:00 cgd Exp $ */
/*
* Mach Operating System
@ -36,6 +36,7 @@
int console;
static int test_getchar(prom_return_t *, int *);
static void putonechar(int c);
void
init_prom_calls()
@ -81,26 +82,30 @@ getchar()
}
}
static void
putonechar(c)
int c;
{
prom_return_t ret;
char cbuf = c;
do {
ret.bits = prom_dispatch(PROM_R_PUTS, console, &cbuf, 1);
} while ((ret.u.retval & 1) == 0);
}
void
putchar(c)
int c;
{
prom_return_t ret;
char cbuf;
int typed_c;
if (c == '\r' || c == '\n') {
cbuf = '\r';
do {
ret.bits = prom_dispatch(PROM_R_PUTS, console,
&cbuf, 1);
} while ((ret.u.retval & 1) == 0);
cbuf = '\n';
} else
cbuf = c;
do {
ret.bits = prom_dispatch(PROM_R_PUTS, console, &cbuf, 1);
} while ((ret.u.retval & 1) == 0);
putonechar('\r');
c = '\n';
}
putonechar(c);
ret.bits = prom_dispatch(PROM_R_GETC, console);
if (ret.u.status == 0 || ret.u.status == 1)
if (ret.u.retval == 3)