The carry from bit3 to bit4 needed for adding packed binary coded decimal number correctly, where two binary coded decimal digits reside in one8-bit byte. 在兩個(gè)用二進(jìn)制編碼的十進(jìn)制數字同居于一個(gè)8位字節內的情況下，為了正確地對裝配型二進(jìn)制編碼的十進(jìn)制數進(jìn)行相加所需的從第3位到第4位的進(jìn)位。
A binary-coded decimal code for representing decimal numbers in which each decimal digit is represented by seven binary digits which are coefficients of 8,6,4,2,0,1,0, respectively. 用于表示十進(jìn)制數的一種二進(jìn)制編碼的十進(jìn)制碼，其中每位十進(jìn)制數用七位二進(jìn)制數來(lái)表示，它們分別是8,6,4,2,0,1和0的系數。
