overlooked mul and imul, results for div and idiv

[sevilla-larry]

Existing issues

• I have searched the existing issues.

Affected document

https://github.com/0xAX/asm/blob/master/content/asm_4.md

Issue description

hi @0xAX,

Under Binary arithmetic instructions:

1. missing: mul and imul
2. results for:
   a. 8-bit: al = quotient, ah = remainder
   b. 16-bit: ax = quotient, dx = remainder
   c. 32-bit: eax = quotient, edx = remainder
   d. 64-bit: rax = quotient, rdx = remainder

Attachments

No response

[0xAX]

hello @sevilla-larry, thank you for the report. Should be addressed in #81