fix readme
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README.org
41
README.org
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@ -97,41 +97,46 @@ memory is managed via frame based arenas. function scopes defines a memory frame
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heap allocations using the internal malloc opcode push pointers within this frame. when a frame exits, the pointer is reset like stack based gc.
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heap allocations using the internal malloc opcode push pointers within this frame. when a frame exits, the pointer is reset like stack based gc.
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#+BEGIN_SRC sh
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#+BEGIN_SRC sh
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global str terminal_namespace = "/dev/term/0"
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global str prompt = "Enter a string:"
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global str new_line = "\n"
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function main ()
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function main ()
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int mode is $11
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int mode $11;
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str term is $10
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str term $10;
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malloc_immediate "/dev/term/0" -> term
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load_immediate terminal_namespace -> term
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load_immediate 0 -> mode
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load_immediate 0 -> mode
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syscall OPEN term mode -> term # Terminal term = open("/dev/term/0", 0);
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syscall OPEN term mode -> term // Terminal term = open("/dev/term/0", 0);
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malloc_immediate "Enter a string:" -> $7
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load_immediate prompt -> $7
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string_length $7 -> $8
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string_length $7 -> $8
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syscall WRITE term $7 $8 # print prompt
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syscall WRITE term $7 $8 // print prompt
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str user_string is $9
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str user_string $9
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load_immediate 32 -> $8
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load_immediate 32 -> $8
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malloc $8 -> user_string
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malloc $8 -> user_string
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syscall READ term user_string $8 # read in max 32 byte string
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syscall READ term user_string $8 // read in max 32 byte string
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call pln user_string
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call pln user_string -> void
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exit 0
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exit 0
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function pln (str message is $0)
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function pln (str message $0)
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str ts is $1
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str ts $1
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int mode is $5
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int mode $5
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int msg_length is $2
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int msg_length $2
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str nl is $3
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str nl $3
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int nl_length is $4
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int nl_length $4
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malloc_immediate "/dev/term/0" -> ts
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load_immediate terminal_namespace -> ts
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load_immediate 0 -> mode
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load_immediate 0 -> mode
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syscall OPEN ts mode -> ts # get terminal device
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syscall OPEN ts mode -> ts
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strlen message -> msg_length
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strlen message -> msg_length
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syscall WRITE ts message msg_length
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syscall WRITE ts message msg_length
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malloc_immediate "\n" -> nl
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load_immediate new_line -> nl
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strlen nl -> nl_length
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strlen nl -> nl_length
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syscall WRITE ts nl nl_length
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syscall WRITE ts nl nl_length
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return
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#+END_SRC
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#+END_SRC
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