ARM System Developer’s Guide phần 5 ppt

... (cycles/biquad) ARM7 TDMI 7.6 5. 2 9.0 22.0 ARM9 TDMI 7.0 4.8 8.3 22.0 StrongARM 4.8 3.8 5. 2 16 .5 ARM9 E 2 .5 1.3 4.3 8.0 XScale 1.8 1.3 3.7 7.7 Table 8.10 ARM FFT benchmarks. 16-bit complex FFT (radix-4) ARM9 TDMI (cycles/FFT) ... ARMv4T IIR timings. Processor Cycles per loop Cycles per biquad-sample ARM9 TDMI 44 22 StrongARM 33 16 .5 The timings on ARM9 TDMI and StrongARM are...

Ngày tải lên: 09/08/2014, 12:22

... xi Chapter 1 ARM Embedded Systems 3 1.1 The RISC Design Philosophy 4 1.2 The ARM Design Philosophy 5 1.3 Embedded System Hardware 6 1.4 Embedded System Software 12 1 .5 Summary 15 Chapter 2 ARM Processor ... MMU Configuration 51 3 14.9 The Fast Context Switch Extension 51 5 14.10 Demonstration: A Small Virtual Memory System 52 0 14.11 The Demonstration as mmuSLOS 54 5 14.1...

Ngày tải lên: 09/08/2014, 12:22

... Furthermore, to implement the i++ exactly, the compiler must account for the case when i = 255 . Any attempt to increment 255 should produce the answer 0. This Page Intentionally Left Blank 4.8 Software Interrupt ... interrupts) cpsr T = 0 (ARM state) The Thumb SWI instruction has the same effect and nearly the same syntax as the ARM equivalent. It differs in that the SWI number is limited...

Ngày tải lên: 09/08/2014, 12:22

... instructions. ■ Example 5. 17 Now suppose that we are using an ARM9 E processor with the ARMv5E extensions. We can rewrite qmac again so that the compiler uses the new ARMv5E instructions: __inline ... y_3, y_3, x_3, LSL k MOV y_4, x_3, LSR kr ORR y_4, y_4, x_4, LSL k MOV y _5, x_4, LSR kr ORR y _5, y _5, x _5, LSL k MOV y_6, x _5, LSR kr ORR y_6, y_6, x_6, LSL k MOV y_7, x_6, LSR kr ORR y_...

Ngày tải lên: 09/08/2014, 12:22

... t, r, d, r ; r=(d/e)-1 at Q32 LDR t, =0x 555 555 55 ; round(2 ∧ 32/3) ADD n, q, n, LSL#26 ; n+log2(e) at Q26 SMULL t, q, r, t ; q = r/3 at Q32 LDR d, =0x05c 551 d9 ; round(2 ∧ 26/ln(2)) SMULL t, q, ... 0x 85 DCB 0x82, 0x7f, 0x7b, 0x78, 0x 75, 0x72, 0x6f, 0x6c DCB 0x69, 0x66, 0x64, 0x61, 0x5e, 0x5c, 0x59, 0x57 DCB 0x 55, 0x52, 0x50, 0x4e, 0x4c, 0x49, 0x47, 0x 45 DCB 0x43, 0x41, 0x3f, 0x3d,...

Ngày tải lên: 09/08/2014, 12:22

... #BINARY_0 ;5: ifCommRx BLNE disable_lower ; 5 : then branch TST r10, #BINARY_1 ;5: ifCommTx BLNE disable_lower ; 5 : then branch TST r10, #BINARY_2 ;5: ifTimer1 BLNE disable_lower ; 5 : then branch TST ... common firmware suites. 10.1.1 ARM Firmware Suite ARM has developed a firmware package called the ARM Firmware Suite (AFS). AFS is designed purely for ARM- based embedded systems...

Ngày tải lên: 09/08/2014, 12:22

... ARM9 20T, ARM9 22T, ARM9 26EJ-S, ARM1 022E, ARM1 026EJ-S, StrongARM, XScale Flush data cache MCR p 15, 0, Rd, c7, c6, 0 ARM9 20T, ARM9 22T, ARM9 26EJ-S, ARM9 40T, ARM9 46E-S, ARM1 022E, ARM1 026EJ-S, StrongARM, ... ARM1 026EJ-S, StrongARM, XScale Flush instruction cache MCR p 15, 0, Rd, c7, c5, 0 ARM9 20T, ARM9 22T, ARM9 26EJ-S, ARM9 40T, ARM9 46E-S, ARM1 022E, ARM1 026EJ-...

Ngày tải lên: 09/08/2014, 12:22

... ARM9 26EJ-S, ARM1 022E, ARM1 026EJ-S, StrongARM, XScale Invalidate I TLB by line MCR p 15, 0, Rd, c8, c5, 1 virtual address to invalidate ARM9 20T, ARM9 22T, ARM9 26EJ-S, ARM1 022E, ARM1 026EJ-S, StrongARM, ... 23478910 0 MCWRS 31 ARM7 20T 161112 2378910 0 IMCRS 31 ARM9 20T, ARM9 22T, ARM9 26EJ-S, ARM1 026EJ-S 13 V 14 13 V 14 54 11 161112 2378910 0 IMCRS 31 ARM1 022E 13 V 14...

Ngày tải lên: 09/08/2014, 12:22

... or spsr ) from an ARM register 1. MSR<cond> cpsr_<fields>, #<rotated_immed> ARMv3 15. 1 Advanced DSP and SIMD Support in ARMv6 55 3 Table 15. 4 cpsr fields for ARMv6. Field Use N ... Alphabetical List of ARM and Thumb Instructions 57 9 BLX Branch with link and exchange (subroutine call with possible state switch) 1. BLX <address 25& gt; ARMv5 2. BLX<cond> Rm A...

Ngày tải lên: 09/08/2014, 12:22

... ARM9 66E-S processor has a ARM9 E core and implements ARM architecture version 5TE. Any ARMv5TE binaries will execute on an ARM9 66E-S processor. C.1 ARM Naming Convention All ARM processors share a ... Timing Tables D.2 ARM7 TDMI Instruction Cycle Timings D.3 ARM9 TDMI Instruction Cycle Timings D.4 StrongARM1 Instruction Cycle Timings D .5 ARM9 E Instruction Cycle Timings D.6 A...

Ngày tải lên: 09/08/2014, 12:22