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diff --git a/misc/mixal-mode.el b/misc/mixal-mode.el new file mode 100644 index 0000000..1cb46e6 --- /dev/null +++ b/misc/mixal-mode.el @@ -0,0 +1,1311 @@ +;;; mixal-mode.el --- Major mode for the mix asm language. + +;; Copyright (C) 2003 Free Software Foundation + +;; This program is free software; you can redistribute it and/or +;; modify it under the terms of the GNU General Public License as +;; published by the Free Software Foundation; either version 2 of +;; the License, or (at your option) any later version. + +;; This program is distributed in the hope that it will be +;; useful, but WITHOUT ANY WARRANTY; without even the implied +;; warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR +;; PURPOSE. See the GNU General Public License for more details. + +;; You should have received a copy of the GNU General Public +;; License along with this program; if not, write to the Free +;; Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, +;; MA 02111-1307 USA + +;; Author: Pieter E.J. Pareit <pieter.pareit@skynet.be> +;; Maintainer: Pieter E.J. Pareit <pieter.pareit@skynet.be> +;; Created: 09 Nov 2002 +;; Version: 0.1 +;; Keywords: Knuth mix mixal asm mixvm "The Art Of Computer Programming" + +;;; Commentary: +;; Major mode for the mix asm language. +;; The mix asm language is described in "The Art Of Computer Programming". +;; +;; For optimal use, also use GNU MDK. Compiling needs mixasm, running +;; and debugging needs mixvm and mixvm.el from GNU MDK. You can get +;; GNU MDK from `https://savannah.gnu.org/projects/mdk/' and +;; `ftp://ftp.gnu.org/pub/gnu/mdk'. +;; +;; To use this mode, place the following in your .emacs file: +;; `(load-file "/PATH-TO-FILE/mixal-mode.el")'. +;; When you load a file with the extension .mixal the mode will be started +;; automatic. If you want to start the mode manual, use `M-x mixal-mode'. +;; Font locking will work, the behavior of tabs is the same as emacs +;; default behavior. You can compile a source file with `C-c c' you can +;; run a compiled file with `C-c r' or run it in debug mode with `C-c d'. +;; You can get more information about a particular operation code by using +;; mixal-describe-operation-code or `C-h o'. +;; +;; Have fun. + +;;; History: +;; Version 0.1: +;; 19/11/02: completed implementing mixal-describe-operation-code. +;; 13/11/02: implemented compile, mixal-run and mixal-debug. +;; 10/11/02: implemented font-locking and syntax table. +;; 09/11/02: started mixal-mode. + +;;; Code: + +;;; Key map +(defvar mixal-mode-map + (let ((map (make-sparse-keymap))) + (define-key map "\C-cc" 'compile) + (define-key map "\C-cr" 'mixal-run) + (define-key map "\C-cd" 'mixal-debug) + (define-key map "\C-ho" 'mixal-describe-operation-code) + map) + "Keymap for `mixal-mode'.") +; (makunbound 'mixal-mode-map) + +;;; Syntax table +(defvar mixal-mode-syntax-table + (let ((st (make-syntax-table))) + (modify-syntax-entry ?* "<" st) + (modify-syntax-entry ?\n ">" st) + st) + "Syntax table for `dot-mode'.") + +(defvar mixal-font-lock-label-face 'font-lock-variable-name-face + "Face name to use for label names. +Default value is that of `font-lock-variable-name-face', but you can modify +its value.") + +(defvar mixal-font-lock-operation-code-face 'font-lock-keyword-face + "Face name to use for operation code names. +Default value is that of `font-lock-keyword-face', but you can modify its +value.") + +(defvar mixal-font-lock-assembly-pseudoinstruction-face 'font-lock-builtin-face + "Face name to use for assembly pseudoinstruction names. +Default value is that of `font-lock-builtin-face', but you can modify its +value.") + +(defvar mixal-operation-codes + '("NOP" "ADD" "FADD" "SUB" "FSUB" "MUL" "FMUL" "DIV" "FDIV" "NUM" "CHAR" + "HLT" "SLA" "SRA" "SLAX" "SRAX" "SLC" "SRC" "MOVE" "LDA" "LD1" "LD2" "LD3" + "LD4" "LD5" "LD6" "LDX" "LDAN" "LD1N" "LD2N" "LD3N" "LD4N" "LD5N" "LD6N" + "LDXN" "STA" "ST1" "ST2" "ST3" "ST4" "ST5" "ST6" "STX" "STJ" "STZ" "JBUS" + "IOC" "IN" "OUT" "JRAD" "JMP" "JSJ" "JOV" "JNOV" + "JAN" "J1N" "J2N" "J3N" "J4N" "J5N" "J6N" "JXN" + "JAZ" "J1Z" "J2Z" "J3Z" "J4Z" "J5Z" "J6Z" "JXZ" + "JAP" "J1P" "J2P" "J3P" "J4P" "J5P" "J6P" "JXP" + "JANN" "J1NN" "J2NN" "J3NN" "J4NN" "J5NN" "J6NN" "JXNN" + "JANZ" "J1NZ" "J2NZ" "J3NZ" "J4NZ" "J5NZ" "J6NZ" "JXNZ" + "JANP" "J1NP" "J2NP" "J3NP" "J4NP" "J5NP" "J6NP" "JXNP" + "INCA" "DECA" "ENTA" "ENNA" "INC1" "DEC1" "ENT1" "ENN1" + "INC2" "DEC2" "ENT2" "ENN2" "INC3" "DEC3" "ENT3" "ENN3" "INC4" "DEC4" + "ENT4" "ENN4" "INC5" "DEC5" "ENT5" "ENN5" "INC6" "DEC6" "ENT6" "ENN6" + "INCX" "DECX" "ENTX" "ENNX" "CMPA" "FCMP" "CMP1" "CMP2" "CMP3" "CMP4" + "CMP5" "CMP6" "CMPX") + "List of possible operation codes as strings.") +; (makunbound 'mixal-operation-codes) + +(defvar mixal-assembly-pseudoinstructions + '("ORIG" "EQU" "CON" "ALF" "END") + "List of possible assembly pseudoinstructions") + +;;; Font-locking: +(defvar mixal-font-lock-keywords + `(("^\\([A-Z0-9a-z]+\\).*$" + (1 mixal-font-lock-label-face)) + (,(regexp-opt mixal-operation-codes 'words) + . mixal-font-lock-operation-code-face) + (,(regexp-opt + mixal-assembly-pseudoinstructions 'words) + . mixal-font-lock-assembly-pseudoinstruction-face) + ("^[A-Z0-9a-z]*[ \t]+[A-Z0-9a-z]+[ \t]+[A-Z0-9a-z,():]*[\t]+\\(.*\\)$" + (1 font-lock-comment-face))) + "Keyword highlighting specification for `mixal-mode'.") +; (makunbound 'mixal-font-lock-keywords) + +;;;; Compilation +;; Output from mixasm is compatible with default behavior of emacs, +;; I just added a key (C-cc) and modified the make-command. + +;;;; Indentation +;; Tabs works well by default. + +;;;; Describe +(defvar mixal-operation-codes-alist '() + "Alist that contains all the possible operation codes for mix. +Each elt has the form (OP-CODE GROUP FULL-NAME C-BYTE F-BYTE DESCRIPTION EXECUTION-TIME) +Where OP-CODE is the text of the opcode as an symbol, FULL NAME is the human readable name +as a string, C-BYTE is the operation code telling what operation is to be performed, F-BYTE holds +an modification of the operation code which can be a symbol or a number, DESCRIPTION contains +an string with a description about the operation code and EXECUTION-TIME holds info +about the time it takes, number or string") +; (makunbound 'mixal-operation-codes-alist) + +(defun mixal-add-operation-code (op-code group full-name C-byte F-byte description execution-time) + "Add an operation code to the list that contains information about possible op code's." + (setq mixal-operation-codes-alist (cons (list op-code group full-name C-byte F-byte + description execution-time) + mixal-operation-codes-alist ))) + +;; now add each operation code + +(mixal-add-operation-code + 'LDA 'loading "load A" 8 'field + "Put in rA the contents of cell no. M. +Uses a + when there is no sign in subfield. Subfield is left padded with +zeros to make a word." + 2) + +(mixal-add-operation-code + 'LDX 'loading "load X" 15 'field + "Put in rX the contents of cell no. M. +Uses a + when there is no sign in subfield. Subfield is left padded with +zeros to make a word." + 2) + +(mixal-add-operation-code + 'LD1 'loading "load I1" (+ 8 1) 'field + "Put in rI1 the contents of cell no. M. +Uses a + when there is no sign in subfield. Subfield is left padded with +zeros to make a word. Index registers only have 2 bytes and a sign, Trying +to set anything more that that will result in undefined behavior." + 2) + +(mixal-add-operation-code + 'LD2 'loading "load I2" (+ 8 2) 'field + "Put in rI2 the contents of cell no. M. +Uses a + when there is no sign in subfield. Subfield is left padded with +zeros to make a word. Index registers only have 2 bytes and a sign, Trying +to set anything more that that will result in undefined behavior." + 2) + +(mixal-add-operation-code + 'LD3 'loading "load I3" (+ 8 3) 'field + "Put in rI3 the contents of cell no. M. +Uses a + when there is no sign in subfield. Subfield is left padded with +zeros to make a word. Index registers only have 2 bytes and a sign, Trying +to set anything more that that will result in undefined behavior." + 2) + +(mixal-add-operation-code + 'LD4 'loading "load I4" (+ 8 4) 'field + "Put in rI4 the contents of cell no. M. +Uses a + when there is no sign in subfield. Subfield is left padded with +zeros to make a word. Index registers only have 2 bytes and a sign, Trying +to set anything more that that will result in undefined behavior." + 2) + +(mixal-add-operation-code + 'LD5 'loading "load I5" (+ 8 5) 'field + "Put in rI5 the contents of cell no. M. +Uses a + when there is no sign in subfield. Subfield is left padded with +zeros to make a word. Index registers only have 2 bytes and a sign, Trying +to set anything more that that will result in undefined behavior." + 2) + +(mixal-add-operation-code + 'LD6 'loading "load I6" (+ 8 6) 'field + "Put in rI6 the contents of cell no. M. +Uses a + when there is no sign in subfield. Subfield is left padded with +zeros to make a word. Index registers only have 2 bytes and a sign, Trying +to set anything more that that will result in undefined behavior." + 2) + +(mixal-add-operation-code + 'LDAN 'loading "load A negative" 16 'field + "Put in rA the contents of cell no. M, with opposite sign. +Uses a + when there is no sign in subfield, otherwise use the opposite sign. +Subfield is left padded with zeros to make a word." + 2) + +(mixal-add-operation-code + 'LDXN 'loading "load X negative" 23 'field + "Put in rX the contents of cell no. M, with opposite sign. +Uses a + when there is no sign in subfield, otherwise use the opposite sign. +Subfield is left padded with zeros to make a word." + 2) + +(mixal-add-operation-code + 'LD1N 'loading "load I1 negative" (+ 16 1) 'field + "Put in rI1 the contents of cell no. M, with opposite sign. +Uses a + when there is no sign in subfield, otherwise use the opposite sign. +Subfield is left padded with zeros to make a word. Index registers only +have 2 bytes and a sign, Trying to set anything more that that will result +in undefined behavior." + 2) + +(mixal-add-operation-code + 'LD2N 'loading "load I2 negative" (+ 16 2) 'field + "Put in rI2 the contents of cell no. M, with opposite sign. +Uses a + when there is no sign in subfield, otherwise use the opposite sign. +Subfield is left padded with zeros to make a word. Index registers only +have 2 bytes and a sign, Trying to set anything more that that will result +in undefined behavior." + 2) + +(mixal-add-operation-code + 'LD3N 'loading "load I3 negative" (+ 16 3) 'field + "Put in rI3 the contents of cell no. M, with opposite sign. +Uses a + when there is no sign in subfield, otherwise use the opposite sign. +Subfield is left padded with zeros to make a word. Index registers only +have 2 bytes and a sign, Trying to set anything more that that will result +in undefined behavior." + 2) + +(mixal-add-operation-code + 'LD4N 'loading "load I4 negative" (+ 16 4) 'field + "Put in rI4 the contents of cell no. M, with opposite sign. +Uses a + when there is no sign in subfield, otherwise use the opposite sign. +Subfield is left padded with zeros to make a word. Index registers only +have 2 bytes and a sign, Trying to set anything more that that will result +in undefined behavior." + 2) + +(mixal-add-operation-code + 'LD5N 'loading "load I5 negative" (+ 16 5) 'field + "Put in rI5 the contents of cell no. M, with opposite sign. +Uses a + when there is no sign in subfield, otherwise use the opposite sign. +Subfield is left padded with zeros to make a word. Index registers only +have 2 bytes and a sign, Trying to set anything more that that will result +in undefined behavior." + 2) + +(mixal-add-operation-code + 'LD6N 'loading "load I6 negative" (+ 16 6) 'field + "Put in rI6 the contents of cell no. M, with opposite sign. +Uses a + when there is no sign in subfield, otherwise use the opposite sign. +Subfield is left padded with zeros to make a word. Index registers only +have 2 bytes and a sign, Trying to set anything more that that will result +in undefined behavior." + 2) + +(mixal-add-operation-code + 'STA 'storing "store A" 24 'field + "Store in cell Nr. M the contents of rA. +The modification of the operation code represents the subfield of the +memory cell that is to be overwritten with bytes from a register. These +bytes are taken beginning by the rightmost side of the register. The +sign of the memory cell is not changed, unless it is part of the subfield." + 2) + +(mixal-add-operation-code + 'STX 'storing "store X" 31 'field + "Store in cell Nr. M the contents of rX. +The modification of the operation code represents the subfield of the +memory cell that is to be overwritten with bytes from a register. These +bytes are taken beginning by the rightmost side of the register. The +sign of the memory cell is not changed, unless it is part of the subfield." + 2) + +(mixal-add-operation-code + 'ST1 'storing "store I1" (+ 24 1) 'field + "Store in cell Nr. M the contents of rI1. +The modification of the operation code represents the subfield of the +memory cell that is to be overwritten with bytes from a register. These +bytes are taken beginning by the rightmost side of the register. The +sign of the memory cell is not changed, unless it is part of the subfield. +Because index registers only have 2 bytes and a sign, the rest of the bytes +are assumed to be 0." + 2) + +(mixal-add-operation-code + 'ST2 'storing "store I2" (+ 24 2) 'field + "Store in cell Nr. M the contents of rI2. +The modification of the operation code represents the subfield of the +memory cell that is to be overwritten with bytes from a register. These +bytes are taken beginning by the rightmost side of the register. The +sign of the memory cell is not changed, unless it is part of the subfield. +Because index registers only have 2 bytes and a sign, the rest of the bytes +are assumed to be 0." + 2) + +(mixal-add-operation-code + 'ST3 'storing "store I3" (+ 24 3) 'field + "Store in cell Nr. M the contents of rI3. +The modification of the operation code represents the subfield of the +memory cell that is to be overwritten with bytes from a register. These +bytes are taken beginning by the rightmost side of the register. The +sign of the memory cell is not changed, unless it is part of the subfield. +Because index registers only have 2 bytes and a sign, the rest of the bytes +are assumed to be 0." + 2) + +(mixal-add-operation-code + 'ST4 'storing "store I4" (+ 24 4) 'field + "Store in cell Nr. M the contents of rI4. +The modification of the operation code represents the subfield of the +memory cell that is to be overwritten with bytes from a register. These +bytes are taken beginning by the rightmost side of the register. The +sign of the memory cell is not changed, unless it is part of the subfield. +Because index registers only have 2 bytes and a sign, the rest of the bytes +are assumed to be 0." + 2) + +(mixal-add-operation-code + 'ST5 'storing "store I5" (+ 24 5) 'field + "Store in cell Nr. M the contents of rI5. +The modification of the operation code represents the subfield of the +memory cell that is to be overwritten with bytes from a register. These +bytes are taken beginning by the rightmost side of the register. The +sign of the memory cell is not changed, unless it is part of the subfield. +Because index registers only have 2 bytes and a sign, the rest of the bytes +are assumed to be 0." + 2) + +(mixal-add-operation-code + 'ST6 'storing "store I6" (+ 24 6) 'field + "Store in cell Nr. M the contents of rI6. +The modification of the operation code represents the subfield of the +memory cell that is to be overwritten with bytes from a register. These +bytes are taken beginning by the rightmost side of the register. The +sign of the memory cell is not changed, unless it is part of the subfield. +Because index registers only have 2 bytes and a sign, the rest of the bytes +are assumed to be 0." + 2) + +(mixal-add-operation-code + 'STJ 'storing "store J" 32 'field + "Store in cell Nr. M the contents of rJ. +The modification of the operation code represents the subfield of the +memory cell that is to be overwritten with bytes from a register. These +bytes are taken beginning by the rightmost side of the register. The sign +of rJ is always +, sign of the memory cell is not changed, unless it is +part of the subfield. The default field for STJ is (0:2)." + 2) + +(mixal-add-operation-code + 'STZ 'storing "store zero" 33 'field + "Store in cell Nr. M '+ 0'. +The modification of the operation code represents the subfield of the +memory cell that is to be overwritten with zeros." + 2) + +(mixal-add-operation-code + 'ADD 'arithmetic "add" 1 'field + "Add to A the contents of cell Nr. M. +Subfield is padded with zero to make a word. +If the result is to large, the operation result modulo 1,073,741,823 (the +maximum value storable in a MIX word) is stored in `rA', and the overflow +toggle is set to TRUE." + 2) + +(mixal-add-operation-code + 'SUB 'arithmetic "subtract" 2 'field + "Subtract to A the contents of cell Nr. M. +Subfield is padded with zero to make a word. +If the result is to large, the operation result modulo 1,073,741,823 (the +maximum value storable in a MIX word) is stored in `rA', and the overflow +toggle is set to TRUE." + 2) + +(mixal-add-operation-code + 'MUL 'arithmetic "multiply" 3 'field + "Multiplies the contents of cell Nr. M with A, result is 10 bytes and stored in rA and rX. +The sign is + if the sign of rA and cell M where the same, otherwise, it is -" + 10) + +(mixal-add-operation-code + 'DIV 'arithmetic "divide" 4 'field + "Both rA and rX are taken together and divided by cell Nr. M, quotient is placed in rA, remainder in rX. +The sign is taken from rA, and after the divide the sign of rA is set to + when +both the sign of rA and M where the same. Divide by zero and overflow of rA result +in undefined behavior." + 12) + +(mixal-add-operation-code + 'ENTA 'address-transfer "enter A" 48 2 + "Literal value is stored in rA. +Indexed, stores value of index in rA." + 1) + +(mixal-add-operation-code + 'ENTX 'address-transfer "enter X" 55 2 + "Literal value is stored in rX. +Indexed, stores value of index in rX." + 1) + +(mixal-add-operation-code + 'ENT1 'address-transfer "Enter rI1" (+ 48 1) 2 + "Literal value is stored in rI1. +Indexed, stores value of index in rI1." + 1) + +(mixal-add-operation-code + 'ENT2 'address-transfer "Enter rI2" (+ 48 2) 2 + "Literal value is stored in rI2. +Indexed, stores value of index in rI2." + 1) + +(mixal-add-operation-code + 'ENT3 'address-transfer "Enter rI3" (+ 48 3) 2 + "Literal value is stored in rI3. +Indexed, stores value of index in rI3." + 1) + +(mixal-add-operation-code + 'ENT4 'address-transfer "Enter rI4" (+ 48 4) 2 + "Literal value is stored in rI4. +Indexed, stores value of index in rI4." + 1) + +(mixal-add-operation-code + 'ENT5 'address-transfer "Enter rI5" (+ 48 5) 2 + "Literal value is stored in rI5. +Indexed, stores value of index in rI5." + 1) + +(mixal-add-operation-code + 'ENT6 'address-transfer "Enter rI6" (+ 48 6) 2 + "Literal value is stored in rI6. +Indexed, stores value of index in rI6." + 1) + +(mixal-add-operation-code + 'ENNA 'address-transfer "enter negative A" 48 3 + "Literal value is stored in rA with opposite sign. +Indexed, stores value of index in rA with opposite sign." + 1) + +(mixal-add-operation-code + 'ENNX 'address-transfer "enter negative X" 55 3 + "Literal value is stored in rX with opposite sign. +Indexed, stores value of index in rX with opposite sign." + 1) + +(mixal-add-operation-code + 'ENN1 'address-transfer "Enter negative rI1" (+ 48 1) 3 + "Literal value is stored in rI1 with opposite sign. +Indexed, stores value of index in rI1 with opposite sign." + 1) + +(mixal-add-operation-code + 'ENN2 'address-transfer "Enter negative rI2" (+ 48 2) 3 + "Literal value is stored in rI2 with opposite sign. +Indexed, stores value of index in rI2 with opposite sign." + 1) + +(mixal-add-operation-code + 'ENN3 'address-transfer "Enter negative rI3" (+ 48 3) 3 + "Literal value is stored in rI3 with opposite sign. +Indexed, stores value of index in rI3 with opposite sign." + 1) + +(mixal-add-operation-code + 'ENN4 'address-transfer "Enter negative rI4" (+ 48 4) 3 + "Literal value is stored in rI4 with opposite sign. +Indexed, stores value of index in rI4 with opposite sign." + 1) + +(mixal-add-operation-code + 'ENN5 'address-transfer "Enter negative rI5" (+ 48 5) 3 + "Literal value is stored in rI5 with opposite sign. +Indexed, stores value of index in rI5 with opposite sign." + 1) + +(mixal-add-operation-code + 'ENN6 'address-transfer "Enter negative rI6" (+ 48 6) 3 + "Literal value is stored in rI6 with opposite sign. +Indexed, stores value of index in rI6 with opposite sign." + 1) + +(mixal-add-operation-code + 'INCA 'address-transfer "increase A" 48 0 + "Increase register A with the literal value of M. +On overflow the overflow toggle is set." + 1) + +(mixal-add-operation-code + 'INCX 'address-transfer "increase X" 55 0 + "Increase register X with the literal value of M. +On overflow the overflow toggle is set." + 1) + +(mixal-add-operation-code + 'INC1 'address-transfer "increase I1" (+ 48 1) 0 + "Increase register I1 with the literal value of M. +The result is undefined when the result does not fit in +2 bytes." + 1) + +(mixal-add-operation-code + 'INC2 'address-transfer "increase I2" (+ 48 2) 0 + "Increase register I2 with the literal value of M. +The result is undefined when the result does not fit in +2 bytes." + 1) + +(mixal-add-operation-code + 'INC3 'address-transfer "increase I3" (+ 48 3) 0 + "Increase register I3 with the literal value of M. +The result is undefined when the result does not fit in +2 bytes." + 1) + +(mixal-add-operation-code + 'INC4 'address-transfer "increase I4" (+ 48 4) 0 + "Increase register I4 with the literal value of M. +The result is undefined when the result does not fit in +2 bytes." + 1) + +(mixal-add-operation-code + 'INC5 'address-transfer "increase I5" (+ 48 5) 0 + "Increase register I5 with the literal value of M. +The result is undefined when the result does not fit in +2 bytes." + 1) + +(mixal-add-operation-code + 'INC6 'address-transfer "increase I6" (+ 48 6) 0 + "Increase register I6 with the literal value of M. +The result is undefined when the result does not fit in +2 bytes." + 1) + +(mixal-add-operation-code + 'DECA 'address-transfer "decrease A" 48 1 + "Decrease register A with the literal value of M. +On overflow the overflow toggle is set." + 1) + +(mixal-add-operation-code + 'DECX 'address-transfer "decrease X" 55 1 + "Decrease register X with the literal value of M. +On overflow the overflow toggle is set." + 1) + +(mixal-add-operation-code + 'DEC1 'address-transfer "decrease I1" (+ 48 1) 1 + "Decrease register I1 with the literal value of M. +The result is undefined when the result does not fit in +2 bytes." + 1) + +(mixal-add-operation-code + 'DEC2 'address-transfer "decrease I2" (+ 48 2) 1 + "Decrease register I2 with the literal value of M. +The result is undefined when the result does not fit in +2 bytes." + 1) + +(mixal-add-operation-code + 'DEC3 'address-transfer "decrease I3" (+ 48 3) 1 + "Decrease register I3 with the literal value of M. +The result is undefined when the result does not fit in +2 bytes." + 1) + +(mixal-add-operation-code + 'DEC4 'address-transfer "decrease I4" (+ 48 4) 1 + "Decrease register I4 with the literal value of M. +The result is undefined when the result does not fit in +2 bytes." + 1) + +(mixal-add-operation-code + 'DEC5 'address-transfer "decrease I5" (+ 48 5) 1 + "Decrease register I5 with the literal value of M. +The result is undefined when the result does not fit in +2 bytes." + 1) + +(mixal-add-operation-code + 'DEC6 'address-transfer "decrease I6" (+ 48 6) 1 + "Decrease register I6 with the literal value of M. +The result is undefined when the result does not fit in +2 bytes." + 1) + +(mixal-add-operation-code + 'CMPA 'comparison "compare A" 56 'field + "Compare contents of A with contents of M. +The field specifier works on both fields. The comparison indicator +is set to LESS, EQUAL or GREATER depending on the outcome." + 2) + + +(mixal-add-operation-code + 'CMPX 'comparison "compare X" 63 'field + "Compare contents of rX with contents of M. +The field specifier works on both fields. The comparison indicator +is set to LESS, EQUAL or GREATER depending on the outcome." + 2) + + +(mixal-add-operation-code + 'CMP1 'comparison "compare I1" (+ 56 1) 'field + "Compare contents of rI1 with contents of M. +The field specifier works on both fields. The comparison indicator +is set to LESS, EQUAL or GREATER depending on the outcome. Bit 1,2 and 3 +have a value of 0." + 2) + + +(mixal-add-operation-code + 'CMP2 'comparison "compare I2" (+ 56 2) 'field + "Compare contents of rI2 with contents of M. +The field specifier works on both fields. The comparison indicator +is set to LESS, EQUAL or GREATER depending on the outcome. Bit 1,2 and 3 +have a value of 0." + 2) + + +(mixal-add-operation-code + 'CMP3 'comparison "compare I3" (+ 56 3) 'field + "Compare contents of rI3 with contents of M. +The field specifier works on both fields. The comparison indicator +is set to LESS, EQUAL or GREATER depending on the outcome. Bit 1,2 and 3 +have a value of 0." + 2) + + +(mixal-add-operation-code + 'CMP4 'comparison "compare I4" (+ 56 4) 'field + "Compare contents of rI4 with contents of M. +The field specifier works on both fields. The comparison indicator +is set to LESS, EQUAL or GREATER depending on the outcome. Bit 1,2 and 3 +have a value of 0." + 2) + + +(mixal-add-operation-code + 'CMP5 'comparison "compare I5" (+ 56 5) 'field + "Compare contents of rI5 with contents of M. +The field specifier works on both fields. The comparison indicator +is set to LESS, EQUAL or GREATER depending on the outcome. Bit 1,2 and 3 +have a value of 0." + 2) + + +(mixal-add-operation-code + 'CMP6 'comparison "compare I6" (+ 56 6) 'field + "Compare contents of rI6 with contents of M. +The field specifier works on both fields. The comparison indicator +is set to LESS, EQUAL or GREATER depending on the outcome. Bit 1,2 and 3 +have a value of 0." + 2) + +(mixal-add-operation-code + 'JMP 'jump "jump" 39 0 + "Unconditional jump. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + +(mixal-add-operation-code + 'JSJ 'jump "jump, save J" 39 1 + "Unconditional jump, but rJ is not modified." + 1) + +(mixal-add-operation-code + 'JOV 'jump "jump on overflow" 39 2 + "Jump if OV is set (and turn it off). +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + +(mixal-add-operation-code + 'JNOV 'jump "Jump on no overflow" 39 3 + "Jump if OV is not set (and turn it off). +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + +(mixal-add-operation-code + 'JL 'jump "Jump on less" 39 4 + "Jump if '[CM] = L'. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JE 'jump "Jump on equal" 39 5 + "Jump if '[CM] = E'. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JG 'jump "Jump on greater" 39 6 + "Jump if '[CM] = G'. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JGE 'jump "Jump on not less" 39 7 + "Jump if '[CM]' does not equal 'L'. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JNE 'jump "Jump on not equal" 39 8 + "Jump if '[CM]' does not equal 'E'. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JLE 'jump "Jump on not greater" 39 9 + "Jump if '[CM]' does not equal 'G'. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + +(mixal-add-operation-code + 'JAN 'jump "jump A negative" 40 0 + "Jump if the content of rA is negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JAZ 'jump "jump A zero" 40 1 + "Jump if the content of rA is zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JAP 'jump "jump A positive" 40 2 + "Jump if the content of rA is positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JANN 'jump "jump A non-negative" 40 3 + "Jump if the content of rA is non-negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JANZ 'jump "jump A non-zero" 40 4 + "Jump if the content of rA is non-zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JANP 'jump "jump A non-positive" 40 5 + "Jump if the content of rA is non-positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + +(mixal-add-operation-code + 'JXN 'jump "jump X negative" 47 0 + "Jump if the content of rX is negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JXZ 'jump "jump X zero" 47 1 + "Jump if the content of rX is zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JXP 'jump "jump X positive" 47 2 + "Jump if the content of rX is positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JXNN 'jump "jump X non-negative" 47 3 + "Jump if the content of rX is non-negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JXNZ 'jump "jump X non-zero" 47 4 + "Jump if the content of rX is non-zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'JXNP 'jump "jump X non-positive" 47 5 + "Jump if the content of rX is non-positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + +(mixal-add-operation-code + 'J1N 'jump "jump I1 negative" (+ 40 1) 0 + "Jump if the content of rI1 is negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J1Z 'jump "jump I1 zero" (+ 40 1) 1 + "Jump if the content of rI1 is zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J1P 'jump "jump I1 positive" (+ 40 1) 2 + "Jump if the content of rI1 is positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J1NN 'jump "jump I1 non-negative" (+ 40 1) 3 + "Jump if the content of rI1 is non-negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J1NZ 'jump "jump I1 non-zero" (+ 40 1) 4 + "Jump if the content of rI1 is non-zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J1NP 'jump "jump I1 non-positive" (+ 40 1) 5 + "Jump if the content of rI1 is non-positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + +(mixal-add-operation-code + 'J2N 'jump "jump I2 negative" (+ 40 1) 0 + "Jump if the content of rI2 is negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J2Z 'jump "jump I2 zero" (+ 40 1) 1 + "Jump if the content of rI2 is zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J2P 'jump "jump I2 positive" (+ 40 1) 2 + "Jump if the content of rI2 is positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J2NN 'jump "jump I2 non-negative" (+ 40 1) 3 + "Jump if the content of rI2 is non-negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J2NZ 'jump "jump I2 non-zero" (+ 40 1) 4 + "Jump if the content of rI2 is non-zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J2NP 'jump "jump I2 non-positive" (+ 40 1) 5 + "Jump if the content of rI2 is non-positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J3N 'jump "jump I3 negative" (+ 40 1) 0 + "Jump if the content of rI3 is negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J3Z 'jump "jump I3 zero" (+ 40 1) 1 + "Jump if the content of rI3 is zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J3P 'jump "jump I3 positive" (+ 40 1) 2 + "Jump if the content of rI3 is positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J3NN 'jump "jump I3 non-negative" (+ 40 1) 3 + "Jump if the content of rI3 is non-negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J3NZ 'jump "jump I3 non-zero" (+ 40 1) 4 + "Jump if the content of rI3 is non-zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J3NP 'jump "jump I3 non-positive" (+ 40 1) 5 + "Jump if the content of rI3 is non-positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J4N 'jump "jump I4 negative" (+ 40 1) 0 + "Jump if the content of rI4 is negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J4Z 'jump "jump I4 zero" (+ 40 1) 1 + "Jump if the content of rI4 is zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J4P 'jump "jump I4 positive" (+ 40 1) 2 + "Jump if the content of rI4 is positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J4NN 'jump "jump I4 non-negative" (+ 40 1) 3 + "Jump if the content of rI4 is non-negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J4NZ 'jump "jump I4 non-zero" (+ 40 1) 4 + "Jump if the content of rI4 is non-zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J4NP 'jump "jump I4 non-positive" (+ 40 1) 5 + "Jump if the content of rI4 is non-positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J5N 'jump "jump I5 negative" (+ 40 1) 0 + "Jump if the content of rI5 is negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J5Z 'jump "jump I5 zero" (+ 40 1) 1 + "Jump if the content of rI5 is zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J5P 'jump "jump I5 positive" (+ 40 1) 2 + "Jump if the content of rI5 is positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J5NN 'jump "jump I5 non-negative" (+ 40 1) 3 + "Jump if the content of rI5 is non-negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J5NZ 'jump "jump I5 non-zero" (+ 40 1) 4 + "Jump if the content of rI5 is non-zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J5NP 'jump "jump I5 non-positive" (+ 40 1) 5 + "Jump if the content of rI5 is non-positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J6N 'jump "jump I6 negative" (+ 40 1) 0 + "Jump if the content of rI6 is negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J6Z 'jump "jump I6 zero" (+ 40 1) 1 + "Jump if the content of rI6 is zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J6P 'jump "jump I6 positive" (+ 40 1) 2 + "Jump if the content of rI6 is positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J6NN 'jump "jump I6 non-negative" (+ 40 1) 3 + "Jump if the content of rI6 is non-negative. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J6NZ 'jump "jump I6 non-zero" (+ 40 1) 4 + "Jump if the content of rI6 is non-zero. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + + +(mixal-add-operation-code + 'J6NP 'jump "jump I6 non-positive" (+ 40 1) 5 + "Jump if the content of rI6 is non-positive. +Register J is set to the value of the next instruction that would have +been executed when there was no jump." + 1) + +(mixal-add-operation-code + 'SLA 'miscellaneous "shift left A" 6 0 + "Shift to A, M bytes left. +Hero's will be added to the right." + 2) + + +(mixal-add-operation-code + 'SRA 'miscellaneous "shift right A" 6 1 + "Shift to A, M bytes right. +Zeros will be added to the left." + 2) + + +(mixal-add-operation-code + 'SLAX 'miscellaneous "shift left AX" 6 2 + "Shift AX, M bytes left. +Zeros will be added to the right." + 2) + + + +(mixal-add-operation-code + 'SRAX 'miscellaneous "shift right AX" 6 3 + "Shift AX, M bytes right. +Zeros will be added to the left." + 2) + + +(mixal-add-operation-code + 'SLC 'miscellaneous "shift left AX circularly" 6 4 + "Shift AX, M bytes left circularly. +The bytes that fall off to the left will be added to the right." + 2) + + +(mixal-add-operation-code + 'SRC 'miscellaneous "shift right AX circularly" 6 4 + "Shift AX, M bytes right circularly. +The bytes that fall off to the right will be added to the left." + 2) + +(mixal-add-operation-code + 'MOVE 'miscellaneous "move" 7 'number + "Move MOD words from M to the location stored in rI1." + '(+ 1 (* 2 number))) + +(mixal-add-operation-code + 'NOP 'miscellaneous "no operation" 0 'ignored + "No operation, M and F are not used by the machine." + 1) + +(mixal-add-operation-code + 'HLT 'miscellaneous "halt" 5 2 + "Halt. +Stop instruction fetching." + 1) + +(mixal-add-operation-code + 'IN 'input-output "input" 36 'unit + "Transfer a block of words from the specified unit to memory. +The transfer starts at address M." + 1) + +(mixal-add-operation-code + 'OUT 'input-output "output" 37 'unit + "Transfer a block of words from memory. +The transfer starts at address M to the specified unit." + 1) + +(mixal-add-operation-code + 'IOC 'input-output "input-output control" 35 'unit + "Perform a control operation. +The control operation is given by M on the specified unit." + 1) + +(mixal-add-operation-code + 'JRED 'input-output "jump ready" 38 'unit + "Jump to M if the specified unit is ready." + 1) + + +(mixal-add-operation-code + 'JBUS 'input-output "jump busy" 34 'unit + "Jump to M if the specified unit is busy." + 1) + +(mixal-add-operation-code + 'NUM 'conversion "convert to numeric" 5 0 + "Convert rAX to its numerical value and store it in rA. +the register rAX is assumed to contain a character representation of +a number." + 10) + +(mixal-add-operation-code + 'CHAR 'conversion "convert to characters" 5 1 + "Convert the number stored in rA to a character representation. +The converted character representation is stored in rAX." + 10) + +(defvar mixal-describe-operation-code-history nil + "History list for describe operation code.") + +(defun mixal-describe-operation-code (&optional op-code) + "Display the full documentation of OP-CODE." + (interactive) + ;; we like to provide completition and history, so do it ourself (interactive "?bla")? + (unless op-code + (let* ((completion-ignore-case t) + ;; we already have a list, but it is not in the right format + ;; transform it to a valid table so completition can use it + (table (mapcar '(lambda (elm) + (cons (symbol-name (car elm)) nil)) + mixal-operation-codes-alist)) + ;; prompt is different depending on we are close to a valid op-code + (have-default (member (current-word) mixal-operation-codes)) + (prompt (concat "Describe operation code " + (if have-default + (concat "(default " (current-word) "): ") + ": ")))) + ;; as the operation code to the user + (setq op-code (completing-read prompt table nil t nil + 'mixal-describe-operation-code-history + (current-word))))) + ;; get the info on the op-code and output it to the help buffer + (let ((op-code-help (assq (intern-soft op-code) mixal-operation-codes-alist))) + (when op-code-help + (with-output-to-temp-buffer (buffer-name (get-buffer-create "*Help*")) + (princ op-code) (princ " is an mix operation code\n\n") + (princ (nth 5 op-code-help)) (terpri) (terpri) + (princ " group: ") (princ (nth 1 op-code-help)) (terpri) + (princ " nice name: ") (princ (nth 2 op-code-help)) (terpri) + (princ " OPCODE / C: ") (princ (nth 3 op-code-help)) (terpri) + (princ " MOD / F: ") (princ (nth 4 op-code-help)) (terpri) + (princ " time: ") (princ (nth 6 op-code-help)) (terpri))))) + +;;;; Running +(defun mixal-run () + "Run's mixal file in current buffer, assumes that file has been compiled" + (interactive) + (mixvm (concat "mixvm -r -t -d " + (file-name-sans-extension (buffer-file-name))))) + +(defun mixal-debug () + "Starts mixvm for debugging, assumes that file has been compiled with debugging support" + (interactive) + (mixvm (concat "mixvm " + (file-name-sans-extension (buffer-file-name))))) + +;;;###autoload +(define-derived-mode mixal-mode fundamental-mode "mixal" + "Major mode for the mixal asm language. +\\{mixal-mode-map}" + (set (make-local-variable 'comment-start) "*") + (set (make-local-variable 'comment-start-skip) "*") + (set (make-local-variable 'font-lock-defaults) '(mixal-font-lock-keywords)) +; might add an indent function in the future +; (set (make-local-variable 'indent-line-function) 'mixal-indent-line) + (set (make-local-variable 'compile-command) (concat "mixasm -g " + buffer-file-name)) + ;; mixasm will do strange when there is no final newline, + ;; let emacs ensure that it is always there + (set (make-local-variable 'require-final-newline) t)) + +;;;###autoload +(add-to-list 'auto-mode-alist '("\\.mixal\\'" . mixal-mode)) + +(provide 'mixal-mode) +;;; mixal-mode.el ends here |