deposit-field newbyte bytespec integer → result-integer

newbyte — an integer.

bytespec — a byte specifier.

integer — an integer.

result-integer — an integer.

Replaces a field of bits within integer; specifically, returns an integer that contains the bits of newbyte within the byte specified by bytespec, and elsewhere contains the bits of integer.

(deposit-field 7 (byte 2 1) 0) → 6 
(deposit-field -1 (byte 4 0) 0) → 15 
(deposit-field 0 (byte 2 1) -3) → -7

byte, dpb

(logbitp j (deposit-field m (byte s p) n)) 
≡ (if (and (>= j p) (< j (+ p s))) 
       (logbitp j m) 
       (logbitp j n))

deposit-field is to mask-field as dpb is to ldb.