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Annotation of qemu/roms/openbios/arch/ppc/mol/mol.fs, revision 1.1

1.1     ! root        1: 
        !             2: 
        !             3: \ -------------------------------------------------------------------------
        !             4: \ initialization
        !             5: \ -------------------------------------------------------------------------
        !             6: 
        !             7: : make-openable ( path )
        !             8:   find-dev if
        !             9:     begin ?dup while
        !            10:       \ install trivial open and close methods
        !            11:       dup active-package! is-open
        !            12:       parent
        !            13:     repeat
        !            14:   then
        !            15: ;
        !            16: 
        !            17: : preopen ( chosen-str node-path )
        !            18:   2dup make-openable
        !            19:   
        !            20:   " /chosen" find-device
        !            21:   open-dev ?dup if
        !            22:     encode-int 2swap property
        !            23:   else
        !            24:     2drop
        !            25:   then
        !            26: ;
        !            27: 
        !            28: \ preopen device nodes (and store the ihandles under /chosen)
        !            29: :noname
        !            30:   " memory" " /memory" preopen
        !            31:   " mmu" " /cpus/@0" preopen
        !            32:   " stdout" " /packages/mol-stdout" preopen
        !            33:   " stdin" " keyboard" preopen
        !            34:   " nvram" " /pci/pci-bridge/mac-io/nvram" preopen
        !            35:   " nvram" " /mol/nvram" preopen
        !            36: 
        !            37: ; SYSTEM-initializer
        !            38: 
        !            39: 
        !            40: \ -------------------------------------------------------------------------
        !            41: \ device tree fixing
        !            42: \ -------------------------------------------------------------------------
        !            43: 
        !            44: \ add decode-address methods
        !            45: : (make-decodable) ( phandle -- )
        !            46: 
        !            47:     dup " #address-cells" rot get-package-property 0= if
        !            48:       decode-int nip nip
        !            49:       over " decode-unit" rot find-method if 2drop else
        !            50:         ( save phandle ncells )
        !            51:       
        !            52:         over active-package!
        !            53:         case
        !            54:           1 of ['] parse-hex " decode-unit" is-xt-func endof
        !            55:           3 of
        !            56:             " bus-range" active-package get-package-property 0= if
        !            57:               decode-int nip nip
        !            58:               ['] encode-unit-pci " encode-unit" is-xt-func
        !            59:               " decode-unit" is-func-begin
        !            60:                 ['] (lit) , ,
        !            61:                 ['] decode-unit-pci-bus ,
        !            62:               is-func-end
        !            63:             then
        !            64:           endof
        !            65:         endcase
        !            66:       then
        !            67:     then
        !            68:     drop
        !            69: ;
        !            70:     
        !            71: : tree-fixes ( -- )
        !            72:   active-package
        !            73:   
        !            74:   iterate-tree-begin
        !            75:   begin ?dup while
        !            76: 
        !            77:     dup (make-decodable)
        !            78:     
        !            79:     iterate-tree
        !            80:   repeat
        !            81: 
        !            82:   active-package!
        !            83: ;
        !            84: 
        !            85: \ use the tty interface if available
        !            86: : activate-tty-interface
        !            87:   " /mol/mol-tty" find-dev if drop
        !            88:     " /mol/mol-tty" " input-device" $setenv
        !            89:     " /mol/mol-tty" " output-device" $setenv
        !            90:   then
        !            91: ;
        !            92: 
        !            93: :noname
        !            94:   " keyboard" input
        !            95: ; CONSOLE-IN-initializer
        !            96: 
        !            97: 
        !            98: \ -------------------------------------------------------------------------
        !            99: \ pre-booting
        !           100: \ -------------------------------------------------------------------------
        !           101: 
        !           102: : update-chosen
        !           103:   " /chosen" find-device
        !           104:   stdin @ encode-int " stdin" property
        !           105:   stdout @ encode-int " stdout" property
        !           106:   device-end
        !           107: ;

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