1 files changed, 272 insertions, 0 deletions
diff --git a/internal/c_wrap_linux.tnsl b/internal/c_wrap_linux.tnsl
new file mode 100644
index 0000000..31bee1a
--- /dev/null
+++ b/internal/c_wrap_linux.tnsl
@@ -0,0 +1,272 @@
+# Must be included at the top of the file
+asm "extern malloc, realloc, free, printf, putchar, open, close, read, write, lseek, perror"
+
+~void NULL = 0
+
+/; _alloc (uint size) [~void]
+    ~void out
+
+    asm "mov rax, rsp"
+    asm "xor rdx, rdx"
+    asm "mov rcx, 16"
+    asm "div rcx"
+    asm "sub rsp, rdx"
+    asm "sub rsp, 128"
+    
+    # Mov size into proper register, and set all extras to zero
+    asm "mov rdi, r10"
+    asm "mov rsi, 0"
+    asm "xor rax, rax"
+    
+    # Do call
+    asm "call malloc wrt ..plt"
+
+    # Set out to the returned value
+    # (The compiler assignes spaces sequentially, and we have a uint in r10)
+    asm "mov r11, rax"
+
+    return out
+;/
+
+/; _realloc (~void ptr, uint new_size) [~void]
+    ~void out
+
+    asm "mov rax, rsp"
+    asm "xor rdx, rdx"
+    asm "mov rcx, 16"
+    asm "div rcx"
+    asm "sub rsp, rdx"
+    asm "sub rsp, 128"
+    
+    # Mov ptr and new size into proper registers, and set all extras to zero
+    asm "mov rdi, r10"
+    asm "mov rsi, r11"
+    asm "xor rax, rax"
+
+    # Do call
+    asm "call realloc wrt ..plt"
+    
+    # Set out to the returned value
+    # (The compiler assignes spaces sequentially. We have a ptr in r10, and a uint in r11)
+    asm "mov r12, rax"
+
+    return out
+;/
+
+/; _delete (~void ptr)
+
+    asm "mov rax, rsp"
+    asm "xor rdx, rdx"
+    asm "mov rcx, 16"
+    asm "div rcx"
+    asm "sub rsp, rdx"
+    asm "sub rsp, 128"
+    
+    # setup call by clearing most values
+    asm "mov rdi, r10"
+    asm "mov rsi, 0"
+    asm "xor rax, rax"
+
+    # do call
+    asm "call free wrt ..plt"
+
+    # there's no more to do 'cause free returns nothing 
+;/
+
+/; _putchar (uint8 char)
+
+    asm "mov rax, rsp"
+    asm "xor rdx, rdx"
+    asm "mov rcx, 16"
+    asm "div rcx"
+    asm "sub rsp, rdx"
+    asm "sub rsp, 128"
+    
+    # setup call by clearing most values
+    asm "mov rdi, r10"
+    asm "xor rsi, rsi"
+    asm "xor rax, rax"
+    
+    # do call
+    asm "call putchar wrt ..plt"
+    
+    # there's no more to do 'cause I don't care about putchar's output
+;/
+
+# wrap around putchar ( I was dumb and was using printf when I shouldn't have been )
+/; _print (~uint8 str)
+	/; loop (str` !== 0) [str++]
+		_putchar(str`)
+	;/
+;/
+
+/; _print_num (~void str, int num)
+
+    asm "mov rax, rsp"
+    asm "xor rdx, rdx"
+    asm "mov rcx, 16"
+    asm "div rcx"
+    asm "sub rsp, rdx"
+    asm "sub rsp, 128"
+    
+    # setup call by clearing most values
+    asm "mov rdi, r10"
+    asm "mov rsi, r11"
+    asm "xor rax, rax"
+    
+    # do call
+    asm "call printf wrt ..plt"
+    
+    # there's no more to do 'cause printf returns nothing
+;/
+
+
+# Create file for writing (overwrite)
+/; _create_file (~void name) [int]
+    int out
+
+    asm "mov rax, rsp"
+    asm "xor rdx, rdx"
+    asm "mov rcx, 16"
+    asm "div rcx"
+    asm "sub rsp, rdx"
+    asm "sub rsp, 128"
+
+    # Do call
+    asm "mov rdi, r10"
+    asm "mov rsi, 0q1102"
+    asm "mov rdx, 0q700"
+    asm "call open wrt ..plt"
+
+    # Set out to the returned value
+    # (The compiler assignes spaces sequentially. We have a ptr in r8)
+    asm "mov r11, rax"
+
+    return out
+;/
+
+# Open file for reading or writing (no overwrite)
+/; _open_file (~void name) [int]
+    int out
+
+    asm "mov rax, rsp"
+    asm "xor rdx, rdx"
+    asm "mov rcx, 16"
+    asm "div rcx"
+    asm "sub rsp, rdx"
+    asm "sub rsp, 128"
+
+    # Do syscall
+    asm "mov rdi, r10"
+    asm "mov rsi, 2"
+    asm "mov rdx, 0q700"
+    asm "call open wrt ..plt"
+
+    # Set out to the returned value
+    # (The compiler assignes spaces sequentially. We have a ptr in r8, and a uint in r9)
+    asm "mov r11, rax"
+
+    return out
+;/
+
+/; _close_file (int handle)
+
+    asm "mov rax, rsp"
+    asm "xor rdx, rdx"
+    asm "mov rcx, 16"
+    asm "div rcx"
+    asm "sub rsp, rdx"
+    asm "sub rsp, 128"
+
+    # Do syscall
+    asm "mov rdi, r10"
+    asm "call close wrt ..plt"
+;/
+
+/; _read_byte (int handle, ~uint8 byte) [int]
+    int out
+
+    asm "mov rax, rsp"
+    asm "xor rdx, rdx"
+    asm "mov rcx, 16"
+    asm "div rcx"
+    asm "sub rsp, rdx"
+    asm "sub rsp, 128"
+
+    # Do syscall
+    asm "mov rdi, r10"  # handle
+    asm "mov rsi, r11"  # buffer
+    asm "mov rdx, 1"   # one byte
+    asm "call read wrt ..plt"
+
+    # return number of bytes read
+    asm "mov r12, rax"
+
+    return out
+;/
+
+/; _fseek (int handle, uint pos) [int]
+	int out
+
+	# align stack
+    asm "mov rax, rsp"
+    asm "xor rdx, rdx"
+    asm "mov rcx, 16"
+    asm "div rcx"
+    asm "sub rsp, rdx"
+    # add buffer zone to stack
+	asm "sub rsp, 128"
+
+	# Call c func
+	asm "mov rdi, r10"
+	asm "mov rsi, r11"
+	asm "mov rdx, 0" # standard value for SEEK_SET as per GNU libc
+    asm "call lseek wrt ..plt"
+
+	# get return value
+	asm "mov r12, rax"
+
+	return out
+;/
+
+/; _write_byte (int handle, ~uint8 byte) [int]
+    int out
+
+    asm "mov rax, rsp"
+    asm "xor rdx, rdx"
+    asm "mov rcx, 16"
+    asm "div rcx"
+    asm "sub rsp, rdx"
+    asm "sub rsp, 128"
+
+    # Do syscall
+    asm "mov rdi, r10"  # handle
+    asm "mov rsi, r11"  # buffer
+    asm "mov rdx, 1"   # one byte
+    asm "call write wrt ..plt"
+
+    asm "mov r12, rax"
+
+    return out
+;/
+
+/; _perror (~void str)
+
+    asm "mov rax, rsp"
+    asm "xor rdx, rdx"
+    asm "mov rcx, 16"
+    asm "div rcx"
+    asm "sub rsp, rdx"
+    asm "sub rsp, 128"
+    
+    # setup call by clearing most values
+    asm "mov rdi, r10"
+    asm "xor rsi, rsi"
+    asm "xor rax, rax"
+    
+    # do call
+    asm "call perror wrt ..plt"
+    
+    # there's no more to do 'cause printf returns nothing 
+;/
+