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Extract PPB reset value to a constant.

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Group with related constants.
This commit is contained in:
Jared Boone 2015-08-04 10:29:54 -07:00
parent 52ba9af1c7
commit 4870f0015b
1 changed files with 2 additions and 1 deletions
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3
firmware/common/portapack_persistent_memory.cpp
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@ -49,6 +49,7 @@ struct range_t {
using ppb_range_t = range_t<ppb_t>; using ppb_range_t = range_t<ppb_t>;
constexpr ppb_range_t ppb_range { -99000, 99000 }; constexpr ppb_range_t ppb_range { -99000, 99000 };
constexpr ppb_t ppb_reset_value { 0 };
/* struct must pack the same way on M4 and M0 cores. */ /* struct must pack the same way on M4 and M0 cores. */
struct data_t { struct data_t {
@ -60,7 +61,7 @@ static_assert(sizeof(data_t) <= 0x100, "Persistent memory structure too large fo
static data_t* const data = reinterpret_cast<data_t*>(LPC_BACKUP_REG_BASE); static data_t* const data = reinterpret_cast<data_t*>(LPC_BACKUP_REG_BASE);
ppb_t correction_ppb() { ppb_t correction_ppb() {
ppb_range.reset_if_outside(data->correction_ppb, 0); ppb_range.reset_if_outside(data->correction_ppb, ppb_reset_value);
return data->correction_ppb; return data->correction_ppb;
} }