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qf_pwr2.cpp File Reference
Variables

qf_pwr2.cpp File Reference

QF_pwr2Lkup[], QF_invPwr2Lkup[], and QF_div8Lkup[] definitions. More...

Go to the source code of this file.

Variables

uint8_t const Q_ROM Q_ROM_VAR QF_pwr2Lkup [65]
 Lookup table for (1 << ((n-1) % 8)), where n is the index into the table.
uint8_t const Q_ROM Q_ROM_VAR QF_invPwr2Lkup [65]
 Lookup table for ~(1 << ((n-1) % 8)), where n is the index into the table.
uint8_t const Q_ROM Q_ROM_VAR QF_div8Lkup [65]
 Lookup table for (n-1)/8.

Detailed Description

QF_pwr2Lkup[], QF_invPwr2Lkup[], and QF_div8Lkup[] definitions.

Definition in file qf_pwr2.cpp.

Variable Documentation

uint8_t const Q_ROM Q_ROM_VAR QF_div8Lkup[65]
Initial value:
 {
    0,                                                      
    0, 0, 0, 0, 0, 0, 0, 0,
    1, 1, 1, 1, 1, 1, 1, 1,
    2, 2, 2, 2, 2, 2, 2, 2,
    3, 3, 3, 3, 3, 3, 3, 3,
    4, 4, 4, 4, 4, 4, 4, 4,
    5, 5, 5, 5, 5, 5, 5, 5,
    6, 6, 6, 6, 6, 6, 6, 6,
    7, 7, 7, 7, 7, 7, 7, 7
}

Lookup table for (n-1)/8.

Note:
Index range n = 0..64. The first index (n == 0) should never be used.

Definition at line 59 of file qf_pwr2.cpp.

uint8_t const Q_ROM Q_ROM_VAR QF_invPwr2Lkup[65]
Initial value:
 {
    0xFF,                                                   
    0xFE, 0xFD, 0xFB, 0xF7, 0xEF, 0xDF, 0xBF, 0x7F,
    0xFE, 0xFD, 0xFB, 0xF7, 0xEF, 0xDF, 0xBF, 0x7F,
    0xFE, 0xFD, 0xFB, 0xF7, 0xEF, 0xDF, 0xBF, 0x7F,
    0xFE, 0xFD, 0xFB, 0xF7, 0xEF, 0xDF, 0xBF, 0x7F,
    0xFE, 0xFD, 0xFB, 0xF7, 0xEF, 0xDF, 0xBF, 0x7F,
    0xFE, 0xFD, 0xFB, 0xF7, 0xEF, 0xDF, 0xBF, 0x7F,
    0xFE, 0xFD, 0xFB, 0xF7, 0xEF, 0xDF, 0xBF, 0x7F,
    0xFE, 0xFD, 0xFB, 0xF7, 0xEF, 0xDF, 0xBF, 0x7F
}

Lookup table for ~(1 << ((n-1) % 8)), where n is the index into the table.

Note:
Index range n = 0..64. The first index (n == 0) should never be used.

Definition at line 47 of file qf_pwr2.cpp.

uint8_t const Q_ROM Q_ROM_VAR QF_pwr2Lkup[65]
Initial value:
 {
    0x00,                                                   
    0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
    0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
    0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
    0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
    0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
    0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
    0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
    0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80
}

Lookup table for (1 << ((n-1) % 8)), where n is the index into the table.

Note:
Index range n = 0..64. The first index (n == 0) should never be used.

Definition at line 35 of file qf_pwr2.cpp.

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