diff --git a/docs/architecture-specification.md b/docs/architecture-specification.md index 2c64f98..efdcd1f 100644 --- a/docs/architecture-specification.md +++ b/docs/architecture-specification.md @@ -40,8 +40,8 @@ These are all addressed by number:* | | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | | 8 | 9 | A | B | C | D | E | F | |-------|---------|---------|---------|---------|---------|---------|---------|---------|-|-----------|-----------|-----------|-----------|-----------|-----------|----------|-----------| | **0** | NOP | HLT | | | | | | | | | | | | | | | | -| **5** | LDA # | STA # | ADD # | SUB # | JMP # | HPE # | HPF # | TGF # | | _MUL #_ | _DIV #_ | _JLT #_ | _JGT #_ | _NOT #_ | _AND #_ | _OR #_ | _XOR #_ | -| **6** | LDA ind | STA ind | ADD ind | SUB ind | JMP ind | HPE ind | HPF ind | TGF ind | | _MUL ind_ | _DIV ind_ | _JLT ind_ | _JGT ind_ | _NOT ind_ | _AND ind_ | _OR ind_ | _XOR ind_ | +| **5** | LDA # | STA # | ADD # | SUB # | JMP # | HPE # | HPF # | TGF # | | _MUL #_ | _DIV #_ | _HLT #_ | _HGT #_ | _NOT #_ | _AND #_ | _OR #_ | _XOR #_ | +| **6** | LDA ind | STA ind | ADD ind | SUB ind | JMP ind | HPE ind | HPF ind | TGF ind | | _MUL ind_ | _DIV ind_ | _HLT ind_ | _HGT ind_ | _NOT ind_ | _AND ind_ | _OR ind_ | _XOR ind_ | | **9** | DEV # | INP # | OUT # | NXT | | | | | | | | | | | | | | | **A** | DEV ind | INP ind | OUT ind | NXT | | | | | | | | | | | | | | | **F** | _RSL A_ | _RSR A_ | _ASL A_ | _ASR A_ | | | | | | | | | | | | | | @@ -61,14 +61,10 @@ High byte reference: | 2, 2 | 1010 | A | | 3, 3 | 1111 | F | -TODO: assess JMPs vs. HOPs -→ FIXME: JLT, JGT can't work — those would require 2 arguments - - Brief legend for mnemonics: - RSL/RSR: Ring Shift Left/Right -- JLT/JGT: Jump Less/Greater Than +- HLT/HGT: Jump Less/Greater Than - DEV: select IO device - NXT: "next" - move to next line / card