ARMv7-M, ARMv8-M using Thumb2 version of ARMASM

[danielinux]

No description provided.

[danielinux]

Benchmark did not show relevant differences in terms of size or performance between the two assembly implementations. Selecting thumb-2 as suggested for cortex-M targets.

[danielinux]

Benchmarks with thumb2 (Compare with #513)

Name	Configuration	Bootloader size	Stack size	Image header size	Boot time
SHA2 only	SIGN=NONE	8780	1216	256	.386
SHA384 only	SIGN=NONE HASH=SHA384	18088	3760	256	.688
SHA3 only	SIGN=NONE HASH=SHA3	8552	1216	256	1.161
SHA2 only,small	SIGN=NONE NO_ASM=1	5564	1216	256	.495
rsa2048	SIGN=RSA2048	15060	17568	512	.496
rsa3072	SIGN=RSA3072	15200	12288	512	.605
rsa4096	SIGN=RSA4096	15344	18064	1024	.778
rsa4096 with sha384	SIGN=RSA4096 HASH=SHA384	25036	18064	1024	1.061
ecdsa256	SIGN=ECC256	21840	7632	256	.603
ecdsa384	SIGN=ECC384	21424	11216	512	2.616
ecdsa521	SIGN=ECC521	25100	8288	512	3.765
ecdsa256 with small stack	SIGN=ECC384 WOLFBOOT_SMALL_STACK=1	22180	5880	512	2.567
ecdsa256 with fast math	SIGN=ECC384 SP_MATH=0	21424	11216	512	2.612
ecdsa256, no asm	SIGN=ECC256 NO_ASM=1	14416	7632	256	3.374
ecdsa384, no asm	SIGN=ECC384 NO_ASM=1	15900	11216	512	11.563
ecdsa521, no asm	SIGN=ECC521 NO_ASM=1	14652	8288	512	25.805
ecdsa384 with sha384	SIGN=ECC384 HASH=SHA384	30716	11216	512	2.985
ed25519 with sha384, small	SIGN=ED25519 HASH=SHA384 NO_ASM=1	10976	5000	256	10.080
ed25519 fast	SIGN=ED25519 NO_ASM=0	27828	5000	256	15.197
ed448	SIGN=ED448	17640	4578	512	45.402
ML_DSA-44	SIGN=ML_DSA ML_DSA_LEVEL=2 IMAGE_SIGNATURE_SIZE=2420 IMAGE_HEADER_SIZE=8192	19596	19544	8192	.583
ML_DSA-65	SIGN=ML_DSA ML_DSA_LEVEL=3 IMAGE_SIGNATURE_SIZE=3309 IMAGE_HEADER_SIZE=8192	20236	19544	8192	.692
ML_DSA-87	SIGN=ML_DSA ML_DSA_LEVEL=5 IMAGE_SIGNATURE_SIZE=4627 IMAGE_HEADER_SIZE=12288	20876	19544	12288	.865
LMS 1-10-8	SIGN=LMS LMS_LEVELS=1 LMS_HEIGHT=10 LMS_WINTERNITZ=8 IMAGE_HEADER_SIZE=4096 IMAGE_SIGNATURE_SIZE=1456	11536	1320	4096	1.451
XMSS-SHA2_10_256'	XMSS_PARAMS=XMSS-SHA2_10_256 SIGN=XMSS IMAGE_SIGNATURE_SIZE=2500 IMAGE_HEADER_SIZE=8192	12200	9352	8192	1.166