参数资料
型号: IPT-C2H-NIOS
厂商: Altera
文件页数: 62/138页
文件大小: 0K
描述: C2H COMPILER FOR NIOS II
标准包装: 1
系列: Nios®II
类型: Nios II
功能: C 到硬件编译器
许可证: 初始许可证
Memory Accesses
port. After some number of clock cycles determined by the slave memory
latency and arbitration delay, valid readdata returns to the master port.
(See section “Read Operations with Latency” on page 3–37 .)
Data Computation
For write operations to dereferenced pointers, data-computation logic in
the accelerator computes the value of the expression to write to memory.
This value is the write-data for an Avalon-MM master transfer to
memory. Data-computation logic operates in parallel with the address-
computation logic.
Consider the pointer dereference in the following code which performs a
write operation:
*(ptr_to_int + i) = x + y;
Figure 3–10 shows an example of the logic created for this pointer
dereference for a write operation.
Figure 3–10. Data Generation for a Write Operation
3–22
Nios II C2H Compiler User Guide
9.1
Altera Corporation
November 2009
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