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Time measurements were obtained using an oscilloscope attached to a digital output. See the "Tests Performed" section for more details.
Un-bracketed times are those obtained when executing from flash. Times in [brackets] are those obtained when executing
from RAM.
Test Result 16bit addition 9.2μs [7.4μs] 16bit multiplication 9.7μs [8.2μs] 16bit division 26.4μs [22μs] 32bit multiplication 10.4μs [8.76μs] 32bit subtraction 9.1μs [7.6μs] Bubble sort 432μs [420μs] {570μs*} Block memory move and compare 1.1ms [1.08ms] Conditional branch to procedure 48μs, [46.8s] PUSH’ing and POP’ing 43.8μs, [43.6μs]
*This result was taken running from flash, but with the PLL set for 44MHz and the MAM set for 2 cycle flash access.
The PUSH and POP test was performed by pushing and popping a single register at a time. The ARM7 is capable of pushing/poping
more than one register in a single instruction.
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