new language idea
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parent
ea3c931992
commit
6a31b0560a
2 changed files with 34 additions and 38 deletions
15
04b/in03
15
04b/in03
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@ -243,7 +243,6 @@ align
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reserve d8
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:handle_global
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xcc
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; ignore if this is the second pass
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C=:second_pass
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C=1C
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@ -262,6 +261,7 @@ align
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8C=I
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J=:global_variables
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D=d5
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call :ident_lookup
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C=A
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?C!0:global_redeclaration
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@ -458,17 +458,15 @@ align
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; look up identifier rsi in list rdi with separation rdx between entries
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; returns address of whatever's right after the identifier in the list, or 0 if not found
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:ident_lookup
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C=:second_pass
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C=1C
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; use default of 1 on first pass
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?C=0:return_1
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C=:ident_lookup_sep
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8C=D
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C=:ident_lookup_i
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8C=I
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:ident_lookup_loop
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; check if reached the end of the table
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C=1J
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?C=0:return_0
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I=:ident_lookup_i
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I=8I
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call :ident=
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@ -485,9 +483,6 @@ align
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C=:ident_lookup_sep
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C=8C
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J+=C
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; check if reached the end of the table
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C=1J
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?C=0:return_0
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!:ident_lookup_loop
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; can the character in rbx appear in an identifier?
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@ -525,8 +520,8 @@ align
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; variable
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J=:local_variables
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D=d5
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xcc
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D=d5
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call :ident_lookup
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C=A
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?C=0:rax2term_try_global
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57
04b/in04b
57
04b/in04b
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@ -1,4 +1,3 @@
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; types: char, short, int, long, *type
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; declaration:
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; global <type> <name>
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; local <type> <name>
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@ -11,7 +10,7 @@
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; <lvalue> += <rvalue>
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; <lvalue> -= <rvalue>
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; <function>(<term>, <term>, ...)
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; syscall <term>, <term>, ...
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; syscall <term> <term> ...
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; return <rvalue>
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; byte <number>
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; term:
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@ -29,7 +28,7 @@
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; `<string>`
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; <var>
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; &<var>
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; *<var>
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; *1 <var> / *2 <var> / *4 <var> / *8 <var>
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; <var>[<term>]
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; ~<var>
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; <function>(<term>, <term>, ...)
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@ -48,18 +47,20 @@
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main() ; hello
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global char x
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global short y ;123
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global long z
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global x
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global y ;123
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global z
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:strlen
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function
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argument *char s
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local long len
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local char c
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argument s
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local len
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local c
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local p
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len = 0
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:strlen_loop
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c = s[len]
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p = s + len
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c = *1 p
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if c == 0 goto strlen_loop_end
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len += 1
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goto strlen_loop
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@ -68,40 +69,40 @@ function
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:putc
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function
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argument char c
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local *char p
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argument c
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local p
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p = &c
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syscall 1, 1, p, 1, 0, 0, 0, 0
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syscall 1 1 p 1 0 0 0 0
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return
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:puts
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function
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argument *char s
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local long len
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argument s
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local len
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len = strlen(s)
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syscall 1, 1, s, len, 0, 0, 0, 0
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syscall 1 1 s len 0 0 0 0
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return
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:main
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function
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local *char hello
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local hello
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hello = `Hello, world!
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`
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puts(hello)
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syscall 0x3c, 0, 0, 0, 0, 0, 0, 0
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syscall 0x3c 0 0 0 0 0 0 0
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:f
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function
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argument *long x
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argument *long y
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local long v
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local *long p
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v = *x
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p = *y
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*p = v
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argument x
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argument y
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local v
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local p
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v = *4x
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p = *8y
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*4p = v
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if v == 0 goto something
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p[1] = v + 1
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return p[2]
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*1p = v + 1
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return *2p
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:something
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return p[1]
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return *4p
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