diff options
| author | Keith Packard <keithp@keithp.com> | 2011-07-06 12:38:11 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-07-06 12:38:11 -0700 |
| commit | 41c230cac359b4459ca93196d08704b7d35447c7 (patch) | |
| tree | 4e1d4f7b9e53921e9737082217aa5a5f492e0742 | |
| parent | 481577a29380afe6750ef7c4e928daff837cbc49 (diff) | |
altos: Shrink ao_cmd_put16, ao_cmd_hex and ao_cmd
No functional changes, just reduces code size.
Signed-off-by: Keith Packard <keithp@keithp.com>
| -rw-r--r-- | src/ao_cmd.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/src/ao_cmd.c b/src/ao_cmd.c index 3f020dc3..60f10716 100644 --- a/src/ao_cmd.c +++ b/src/ao_cmd.c @@ -110,9 +110,8 @@ putnibble(uint8_t v) void ao_cmd_put16(uint16_t v) { - int8_t i; - for (i = 3; i >= 0; i--) - putnibble((v >> (i << 2)) & 0xf); + ao_cmd_put8(v >> 8); + ao_cmd_put8(v); } void @@ -133,18 +132,20 @@ void ao_cmd_hex(void) { __xdata uint8_t r = ao_cmd_lex_error; + uint8_t n; ao_cmd_lex_i = 0; ao_cmd_white(); for(;;) { if ('0' <= ao_cmd_lex_c && ao_cmd_lex_c <= '9') - ao_cmd_lex_i = (ao_cmd_lex_i << 4) | (ao_cmd_lex_c - '0'); + n = (ao_cmd_lex_c - '0'); else if ('a' <= ao_cmd_lex_c && ao_cmd_lex_c <= 'f') - ao_cmd_lex_i = (ao_cmd_lex_i << 4) | (ao_cmd_lex_c - 'a' + 10); + n = (ao_cmd_lex_c - 'a' + 10); else if ('A' <= ao_cmd_lex_c && ao_cmd_lex_c <= 'F') - ao_cmd_lex_i = (ao_cmd_lex_i << 4) | (ao_cmd_lex_c - 'A' + 10); + n = (ao_cmd_lex_c - 'A' + 10); else break; + ao_cmd_lex_i = (ao_cmd_lex_i << 4) | n; r = ao_cmd_success; ao_cmd_lex(); } @@ -265,8 +266,8 @@ ao_cmd_register(__code struct ao_cmds *cmds) void ao_cmd(void) { - __xdata char c; - __xdata uint8_t cmd, cmds; + char c; + uint8_t cmd, cmds; __code struct ao_cmds * __xdata cs; void (*__xdata func)(void); |