Arm and thumb 2 instruction set quick reference card creator

The ARM instruction set was used for maximum performance while Thumb provided better code density. ARM Cortex® devices use a new instruction set called Thumb-2. Most Thumb-2 instructions are 16-bit, but six of them are 32-bit. ARM Cortex-M3 Manual Online: instruction set, Table 2-4 Nonsupported Thumb Instructions, Table 2-5 Supported Thumb-2 Instructions. Instruction Blx(1) Branch With Link And Exchange Setend Set Endianness Instruction Type Size Data Operations 16 Branches 16 Load-Store Single 16 Load-Store The Thumb instruction set provides only a subset of the ARM instructions, but it can provide higher code density. It is useful for products with tight memory ­requirements. As the architecture version has been updated, extra instructions have been added to both ARM instructions and Thumb Main ARM documentation site ARM Architecture Reference Manual Covers register usage, addressing modes Covers procedure call standards, mixing ARM/Thumb, mixing C/ASM, exceptions, and ARM GCC Inline Assembler Cookbook. ARM and Thumb-2 Instruction Set Quick Reference Card. ARM® and Thumb®-2 Instruction Set Quick Reference Card Key to Tables Rm {, } See Table Register, optionally shifted by constant introduced at the same time. Thumb-2 is a superset of the ARMv6 Thumb ISA described in the ARM Architecture Reference Manual (ARM DDI 0100). U, N ARM and Thumb-2 Instruction Set Quick Reference Card Single data item loads and , ARM and Thumb-2 Instruction Set Quick Reference Card Coprocessor operations Assembler Action , -bit (Narrow) instructions in Thumb-2 code. For details see the Thumb 16-bit Instruction Set (UAL) Use the ARM instruction set quick reference card to decypher if you're not familiar with ARM assembler. By the way, as a quick note - the comment in the linker script is entirely useless as it only describes what the code is doing, the worst type of comment! Learn some basic instructions used in the ARM instruction set used for programming ARM cores. As you go through the instructions below, we'll reference Figure 1 and try to see how the assembly The Thumb2 encoding is compact and variable length, and does not have condition code predicates ARM Addressing Modes Quick Reference Card. Operation Parallel Halfword-wise addition R15 := Rm, Change to Thumb if Rm[0] is 1 R14 := address of next instruction, R15 := label, Change to ARM Addressing Modes Quick Reference Card. Addressing Mode 2 - Word and Unsigned Byte Data