參數(shù)資料
型號: AT75C1010
英文描述: AT75C1010 Telephony Software Module [Updated 11/01. 29 Pages] This software module runs on the OakDSPCore subsystem of the AT75 series SIAP. expanding its capabilities and making the processor flexible and east to integrate into most operating systems.
中文描述: AT75C1010電話軟件模塊[更新11/01。 29頁]本軟件模塊上運(yùn)行的AT75系列OakDSPCore子系統(tǒng)統(tǒng)計(jì)所。擴(kuò)大其能力,使處理器的靈活和東部地區(qū)融入大多數(shù)操作系統(tǒng)。
文件頁數(shù): 5/171頁
文件大?。?/td> 1288K
代理商: AT75C1010
102
AT75C DSP Subsystem
1368C–INTAP–08/02
RET – Return Conditionally
Syntax:
ret [cond]
Operation:
If the condition is true, then
(sp) –> pc
sp + 1 –> sp
If the condition is met, the program counter (pc) is pulled from the soft-
ware stack, while the previous program counter is lost; the stack pointer
(sp) is post-incremented. This instruction is used to return from subrou-
tines or interrupts.
Affected Flags:
Cycles:
2 if the return is not performed
3 if the return is performed
Words:
1
Notes:
This instruction can also be used to return from the maskable interrupt
service routines (INT0 or INT1 or INT2) to enable additional interrupts,
the IE bit in st0 must be set by the user.
The
ret instruction cannot follow the following instructions:
mov soperand, sp (except for mov ##long immediate, sp)
movp (aXl), sp; addv/subv/set/rst/chng ##long immediate, sp
Z
M
NVCE
L
R
––––––––
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