GitHub/quartz
1
0
Fork 2
mirror of https://github.com/jackyzha0/quartz.git synced 2025-12-27 06:44:07 -06:00
Code Issues Actions Packages Projects Releases Wiki Activity

vault backup: 2022-07-26 13:38:14

Browse Source
This commit is contained in:
Jet Hughes 2022-07-26 13:38:14 +12:00
parent e37cc8fda8
commit 3c59b457f2
1 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
content/notes/05-6809-assembly.md
View File

@ -126,6 +126,19 @@ The programmer's model of a computer is not the same as the hardware model. The
- `tfr b,a` - `tfr b,a`
### Opcodes ### Opcodes
- lda / ldx / ldy
- load a value into the given register
- sta / stx / sty
- store the value of the register back into memory
- tfr
- transfer from one register to another. (tfr b,a)
the hard part is the missing instructions
- 6809 has no `div` or `sqrt`
![opcode table](https://i.imgur.com/VUGYHPi.png)
### Functional Groups
## 6502 Fibonacci in Machine Code ## 6502 Fibonacci in Machine Code