diff options
Diffstat (limited to 'src/kernel/ao_convert_pa.c')
| -rw-r--r-- | src/kernel/ao_convert_pa.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/kernel/ao_convert_pa.c b/src/kernel/ao_convert_pa.c index 20162c1f..410815b6 100644 --- a/src/kernel/ao_convert_pa.c +++ b/src/kernel/ao_convert_pa.c @@ -39,11 +39,11 @@ static const alt_t altitude_table[] AO_CONST_ATTRIB = { #define ALT_MASK (ALT_SCALE - 1) alt_t -ao_pa_to_altitude(int32_t pa) +ao_pa_to_altitude(pres_t pa) { int16_t o; int16_t part; - int32_t low, high; + alt_t low, high; if (pa < 0) pa = 0; @@ -52,16 +52,16 @@ ao_pa_to_altitude(int32_t pa) o = pa >> ALT_SHIFT; part = pa & ALT_MASK; - low = (int32_t) FETCH_ALT(o) * (ALT_SCALE - part); - high = (int32_t) FETCH_ALT(o+1) * part + (ALT_SCALE >> 1); + low = (alt_t) FETCH_ALT(o) * (ALT_SCALE - part); + high = (alt_t) FETCH_ALT(o+1) * part + (ALT_SCALE >> 1); return (low + high) >> ALT_SHIFT; } #ifdef AO_CONVERT_TEST -int32_t -ao_altitude_to_pa(int32_t alt) +pres_t +ao_altitude_to_pa(alt_t alt) { - int32_t span, sub_span; + alt_t span, sub_span; uint16_t l, h, m; int32_t pa; @@ -76,7 +76,7 @@ ao_altitude_to_pa(int32_t alt) } span = altitude_table[l] - altitude_table[h]; sub_span = altitude_table[l] - alt; - pa = ((((int32_t) l * (span - sub_span) + (int32_t) h * sub_span) << ALT_SHIFT) + (span >> 1)) / span; + pa = ((((alt_t) l * (span - sub_span) + (alt_t) h * sub_span) << ALT_SHIFT) + (span >> 1)) / span; if (pa > 120000) pa = 120000; if (pa < 0) |