Capstone Files

API changes and additions

• Enum names of the Alpha architecture are now correctly all upper case. Because of an old Auto-Sync bug all the enum names were prefixed with Alpha instead of ALPHA and some contained lower case letters. Sadly, I just recently recognized that Alpha was effected by that bug.

While this change is very annoying for everybody using the Alpha module, it must be done before the Beta release. Please excuse the inconvenience!

A simple command to replace almost all of these occurrences in your code base is: find . -type f -regex ".*\.\(c\|h\)$" -exec sed -i -E "s|Alpha_([A-Z0-9_]+)|ALPHA_\1|g" {} + Author: @Rot127

• RISC-V got a v5 compatibility macro for its header. With its recent module update CS_MODE_RISCVC was renamed to CS_MODE_RISCV_C to be more consistent with the other CS_MODE_ enums. This could break builds against a v5 code base which only has CS_MODE_RISCVC.

Now you can simply define CAPSTONE_RISCV_COMPAT_HEADER before including capstone.h and CS_MODE_RISCVC will be defined as alias for CS_MODE_RISCV_C

#define CAPSTONE_RISCV_COMPAT_HEADER #include <capstone/capstone.h> Author: @moste00

• Prevent literal displacement truncation for AArch64 memory operands. There are AArch64 displacements which are 64bit in size. But aarch64_op_mem.disp was an int32_t. It was promoted to an int64_t. Author: @amaanmujawar

• Fixed several decoding bugs in the Alpha module. See https://github.com/capstone-engine/capstone/pull/2967 for details. Author: @mattst88

• The RISC-V details now also include the FP rounding mode cs_riscv.rounding_mode. Author: @moste00

• AArch64: Add CS_OPT_SYNTAX_AARCH64_EXPLICIT_WIDE_IMM flag to print shifted MOVN and MOVZ instructions in their explicit forms instead of using the equivalent MOV aliases.

Example output from cstool: ```

cstool aarch64 0xe402a012 mov w4, #-0x170001

cstool aarch64+explicitwideimm 0xe402a012 movn w4, [#0]x17, lsl [#16]

cstool aarch64+explicitwideimm 0xe402a052 movz w4, [#0]x17, lsl [#16] ``` Author: @amaanmujawar

• M68K: Fixed EA decoding error and added ColdFire EMAC_B dual-acc MAC. Author: @b1llow

What's Changed

• Add CI job for building and testing on 32bit big endian by @trufae in https://github.com/capstone-engine/capstone/pull/2941
• Fixed CONTRIBUTING.md not listing all Architectures by @rectrap in https://github.com/capstone-engine/capstone/pull/2952
• Find writeback registers by @slate5 in https://github.com/capstone-engine/capstone/pull/2960
• m68k: fix off-by-one bounds check in M68K_insn_name by @jmestwa-coder in https://github.com/capstone-engine/capstone/pull/2964
• Fix OOB reads/writes - CVE-2026-55893 & CVE-2026-55894 by @Rot127 in https://github.com/capstone-engine/capstone/pull/2968
• Alpha: fix decoder bugs and add test coverage by @mattst88 in https://github.com/capstone-engine/capstone/pull/2967
• Fix crash due to invalid register by @moste00 in https://github.com/capstone-engine/capstone/pull/2966
• Fix naming convention for Alpha enums by @Rot127 in https://github.com/capstone-engine/capstone/pull/2971
• Add frm operands to float/double instructions by @moste00 in https://github.com/capstone-engine/capstone/pull/2972
• Apply clang-format by @Rot127 in https://github.com/capstone-engine/capstone/pull/2975
• Fix AArch64 predicate-as-counter register printed in hex by @yufengzjj in https://github.com/capstone-engine/capstone/pull/2976
• SH: fix signed shift overflow in sh_disassemble dsp decode by @jmestwa-coder in https://github.com/capstone-engine/capstone/pull/2983
• Guard operand append past MAX_MC_OPS in MCInst.c by @Samin061 in https://github.com/capstone-engine/capstone/pull/2985
• M68K: Handle EA decoding error case and add ColdFire EMAC_B dual-acc MAC by @b1llow in https://github.com/capstone-engine/capstone/pull/2987
• Xtensa: fix swapped isIntN arguments in decodeOffset_16_16Operand by @jmestwa-coder in https://github.com/capstone-engine/capstone/pull/2986
• Don't build cstool arch specific details printing, if not requested. by @Rot127 in https://github.com/capstone-engine/capstone/pull/2888
• Add overflow check to cs_kern_os_calloc by @Rot127 in https://github.com/capstone-engine/capstone/pull/2980
• M68K: Fix FPU condition and FMOVEM decoding by @b1llow in https://github.com/capstone-engine/capstone/pull/2993
• AArch64: enh Add option for explicit shifted wide immediates by @amaanmujawar in https://github.com/capstone-engine/capstone/pull/2995
• Add compat behaviour for RISCV for RISCVC/RISCV_C constant by @moste00 in https://github.com/capstone-engine/capstone/pull/2996
• AArch64: fix LDR literal detail operand truncation by @amaanmujawar in https://github.com/capstone-engine/capstone/pull/2984

New Contributors

• @rectrap made their first contribution in https://github.com/capstone-engine/capstone/pull/2952
• @jmestwa-coder made their first contribution in https://github.com/capstone-engine/capstone/pull/2964
• @mattst88 made their first contribution in https://github.com/capstone-engine/capstone/pull/2967
• @yufengzjj made their first contribution in https://github.com/capstone-engine/capstone/pull/2976
• @Samin061 made their first contribution in https://github.com/capstone-engine/capstone/pull/2985
• @amaanmujawar made their first contribution in https://github.com/capstone-engine/capstone/pull/2995

Full Changelog: https://github.com/capstone-engine/capstone/compare/6.0.0-Alpha9...6.0.0-Alpha10