參數(shù)資料
型號: DRM049
英文描述: Internet Connectivity with HCS12 16-bit Microcontroller using the ACP
中文描述: 互聯(lián)網(wǎng)連接與HCS12的16位微控制器使用非加太
文件頁數(shù): 36/80頁
文件大小: 1025K
代理商: DRM049
Software
Designer Reference Manual
DRM040 — Rev 0
36
Software
MOTOROLA
3.1.7 Div48
Subroutine “Div48” is an unsigned 48-bit by 48-bit division routine. The
6-byte numerator (dividend) and the 6-byte denominator (divisor) are
stored in 12 consecutive memory locations. This routine uses 21 bytes
of stack, as all data and temporaries are placed on the stack. At exit, if
the divisor was non-zero, the quotient replaces the dividend and the
remainder replaces the divisor and the carry flag is cleared to indicate a
successful division. Else the carry bit is set, and both dividend and
divisor are not modified. This processing time of this routine is data
dependent.
Figure 3-7
shows Div48 flow diagram.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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