A lower way of writing assembly code -- just write machine code.

Privous Works : s-.rb

Compiler Explorer, or

gcc -g -c a.c -o a.o
objdump -Ss [-M intel] a.o

There are many cheatsheets online, please google it.

I will recommend you to have a look at (9.45M) 325383.pdf's Appendix-B first.

• (中文) mouseos/x64 (404 now)
• x86 Assembly Guide
• x86 Instruction Set Reference
• 325383

Table B-4 regs : ACDBSBSD

0 1 2 3 4 5 6 7
A C D B S B S D

Table B-10 tttn : OBEBESPLLE

0 | 2 | 4 |  6 | 8 | A | C |  E
O | B | E | BE | S | P | L | LE
X | < | = | <= | + | 2 | < | <=

O: Overflow
B: Below (unsigned)
E: Equal
S: Signed
P: Even
L: Less (signed)