| Line 36... |
Line 36... |
-- resolves the issue of divide by 0, as 0 will be treated as 1, as
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-- resolves the issue of divide by 0, as 0 will be treated as 1, as
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-- well as saving time if the division isn't required.
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-- well as saving time if the division isn't required.
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--
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--
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-- Register Map:
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-- Register Map:
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-- Offset Bitfield Description Read/Write
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-- Offset Bitfield Description Read/Write
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-- 0x00 AAAAAAAA Operand A, Lower Byte RW
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-- 0x00 AAAAAAAA Operand A, Lower Byte (RW)
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-- 0x01 AAAAAAAA Operand A, Upper Byte RW
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-- 0x01 AAAAAAAA Operand A, Upper Byte (RW)
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-- 0x02 AAAAAAAA Operand B, Lower Byte RW
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-- 0x02 AAAAAAAA Operand B, Lower Byte (RW)
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-- 0x03 AAAAAAAA Operand B, Upper Byte RW
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-- 0x03 AAAAAAAA Operand B, Upper Byte (RW)
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-- 0x04 AAAAAAAA Operand C, Byte 0 RW
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-- 0x04 AAAAAAAA Operand C, Byte 0 (RW)
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-- 0x05 AAAAAAAA Operand C, Byte 1 RW
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-- 0x05 AAAAAAAA Operand C, Byte 1 (RW)
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-- 0x06 AAAAAAAA Operand C, Byte 2 RW
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-- 0x06 AAAAAAAA Operand C, Byte 2 (RW)
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-- 0x07 AAAAAAAA Operand C, Byte 3 RW
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-- 0x07 AAAAAAAA Operand C, Byte 3 (RW)
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-- 0x08 AAAAAAAA Operand D, Byte 0 RW
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-- 0x08 AAAAAAAA Operand D, Byte 0 (RW)
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-- 0x09 AAAAAAAA Operand D, Byte 1 RW
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-- 0x09 AAAAAAAA Operand D, Byte 1 (RW)
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-- 0x0A AAAAAAAA Operand D, Byte 2 RW
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-- 0x0A AAAAAAAA Operand D, Byte 2 (RW)
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-- 0x0B AAAAAAAA Operand D, Byte 3 RW
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-- 0x0B AAAAAAAA Operand D, Byte 3 (RW)
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--
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-- 0x10 AAAAAAAA Accumulator, Byte 0 R0
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-- 0x10 AAAAAAAA Accumulator, Byte 0 (R0)
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-- 0x11 AAAAAAAA Accumulator, Byte 1 R0
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-- 0x11 AAAAAAAA Accumulator, Byte 1 (R0)
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-- 0x12 AAAAAAAA Accumulator, Byte 2 R0
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-- 0x12 AAAAAAAA Accumulator, Byte 2 (R0)
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-- 0x13 AAAAAAAA Accumulator, Byte 3 R0
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-- 0x13 AAAAAAAA Accumulator, Byte 3 (R0)
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-- 0x14 A------- Accumulator, Sign / Bit 32 R0
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-- 0x14 A------- Accumulator, Sign / Bit 32 (R0)
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--
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-- 0x18 AAAAAAAA BCD Data, Digits 1,0 RO
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-- 0x18 AAAAAAAA BCD Data, Digits 1,0 (RO)
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-- 0x19 AAAAAAAA BCD Data, Digits 3,2 RO
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-- 0x19 AAAAAAAA BCD Data, Digits 3,2 (RO)
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-- 0x1A AAAAAAAA BCD Data, Digits 5,4 RO
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-- 0x1A AAAAAAAA BCD Data, Digits 5,4 (RO)
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-- 0x1B AAAAAAAA BCD Data, Digits 7,6 RO
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-- 0x1B AAAAAAAA BCD Data, Digits 7,6 (RO)
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-- 0x1C AAAAAAAA BCD Data, Digits 9,8 RO
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-- 0x1C AAAAAAAA BCD Data, Digits 9,8 (RO)
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-- 0x1D A------- BCD Data, Sign [pos (0), neg (1)] R0
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-- 0x1D A------- BCD Data, Sign [pos (0), neg (1)] (RO)
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--
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-- 0x1F C-----BA Control/Status RW
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-- 0x1F C-----BA Control/Status (RW)
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-- A = Operation Type:
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-- A = Operation Type:
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-- Unsigned (0) / Signed (1)
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-- Unsigned (0) / Signed (1)
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-- B = BCD conversion (if set) (WR)*
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-- B = BCD conversion (if set) (WR)*
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-- BCD result valid if set (RD)
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-- BCD result valid if set (RD)
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-- C = Conversion Status (1 = busy)
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-- C = Conversion Status (1 = busy)
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