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-rw-r--r--tnslc/utils/c_wrap_windows.tnsl284
1 files changed, 284 insertions, 0 deletions
diff --git a/tnslc/utils/c_wrap_windows.tnsl b/tnslc/utils/c_wrap_windows.tnsl
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+# Must be included at the top of the file
+asm "extern malloc"
+asm "extern realloc"
+asm "extern free"
+
+asm "extern printf"
+
+asm "extern CreateFileA"
+asm "extern ReadFile"
+asm "extern WriteFile"
+asm "extern CloseHandle"
+
+{}uint8 _alert = "Alert!\n\0"
+{}uint8 _dec = "%d\n\0"
+{}uint8 _ptr = "%p\n\0"
+
+/; _alloc (uint size) [~void]
+ ~void out
+
+ asm "mov rax, rsp"
+ asm "xor rdx, rdx"
+ asm "mov rcx, 32"
+ asm "div rcx"
+ asm "sub rsp, rdx"
+ asm "sub rsp, 32"
+
+ # Mov size into proper register, and set all extras to zero
+ asm "mov rcx, r8"
+ asm "mov rdx, 0"
+ asm "mov r8, 0"
+ asm "mov r9, 0"
+
+ asm "call malloc"
+ # Set out to the returned value
+ # (The compiler assignes spaces sequentially, and we have a uint in r8)
+ asm "mov r9, rax"
+ return out
+;/
+
+/; _realloc (~void ptr, uint new_size) [~void]
+ ~void out
+
+ asm "mov rax, rsp"
+ asm "xor rdx, rdx"
+ asm "mov rcx, 32"
+ asm "div rcx"
+ asm "sub rsp, rdx"
+ asm "sub rsp, 32"
+
+ # Mov ptr and new size into proper registers, and set all extras to zero
+ asm "mov rcx, r8"
+ asm "mov rdx, r9"
+ asm "mov r8, 0"
+ asm "mov r9, 0"
+ # Do call
+ asm "call realloc"
+ # Set out to the returned value
+ # (The compiler assignes spaces sequentially. We have a ptr in r8, and a uint in r9)
+ asm "mov r10, rax"
+ return out
+;/
+
+/; _delete (~void ptr)
+
+ asm "mov rax, rsp"
+ asm "xor rdx, rdx"
+ asm "mov rcx, 32"
+ asm "div rcx"
+ asm "sub rsp, rdx"
+ asm "sub rsp, 32"
+
+ # setup call by clearing most values
+ asm "mov rcx, r8"
+ asm "mov rdx, 0"
+ asm "mov r8, 0"
+ asm "mov r9, 0"
+ # do call
+ asm "call free"
+ # there's no more to do 'cause free returns nothing
+;/
+
+/; _printf (~void str)
+
+ asm "mov rax, rsp"
+ asm "xor rdx, rdx"
+ asm "mov rcx, 32"
+ asm "div rcx"
+ asm "sub rsp, rdx"
+ asm "push qword 0"
+ asm "push qword 0"
+ asm "push qword 0"
+ asm "push qword 0"
+
+ # setup call by clearing most values
+ asm "mov rcx, r8"
+ asm "mov rdx, 0"
+ asm "mov r8, 0"
+ asm "mov r9, 0"
+ # do call
+ asm "call printf"
+ # there's no more to do 'cause printf returns nothing
+;/
+
+/; _print_num (~void str, int num)
+
+ asm "mov rax, rsp"
+ asm "xor rdx, rdx"
+ asm "mov rcx, 32"
+ asm "div rcx"
+ asm "sub rsp, rdx"
+ asm "push qword 0"
+ asm "push qword 0"
+ asm "push qword 0"
+ asm "push qword 0"
+
+ # setup call by clearing most values
+ asm "mov rcx, r8"
+ asm "mov rdx, r9"
+ asm "mov rdi, 0"
+ asm "mov rsi, 0"
+ asm "mov r8, 0"
+ asm "mov r9, 0"
+ # do call
+ asm "call printf"
+ # there's no more to do 'cause printf returns nothing
+;/
+
+
+# Create file for writing (overwrite)
+/; _create_file (~void name) [~void]
+ ~void out
+
+ asm "mov rax, rsp"
+ asm "xor rdx, rdx"
+ asm "mov rcx, 32"
+ asm "div rcx"
+ asm "sub rsp, rdx"
+
+ asm "mov rcx, r8" # lpFileName
+ asm "mov rdx, 1" # dwDesiredAccess
+ asm "shl rdx, 28" # (GENERIC_READ 1 << 31 | GENERIC_WRITE 1 << 30)
+ asm "mov r8, 3" # dwShareMode
+ asm "mov r9, 0" # lpSecurityAttributes
+
+ asm "push qword 0" # hTemplateFile
+ asm "push qword 128" # dwFlagsAndAttributes (NORMAL_FILE = 128)
+ asm "push qword 2" # dwCreationDisposition (CREATE_ALWAYS = 2)
+
+ # Shadow space
+ asm "push r9"
+ asm "push r8"
+ asm "push rdx"
+ asm "push rcx"
+
+ # Do call
+ asm "call CreateFileA"
+
+ # Set out to the returned value
+ # (The compiler assignes spaces sequentially. We have a ptr in r8)
+ asm "mov r9, rax"
+
+ return out
+;/
+
+# Open file for reading or writing (no overwrite)
+/; _open_file (~void name) [~void]
+ ~void out
+
+ asm "mov rax, rsp"
+ asm "xor rdx, rdx"
+ asm "mov rcx, 32"
+ asm "div rcx"
+ asm "sub rsp, rdx"
+
+ asm "mov rcx, r8" # lpFileName
+ asm "mov rdx, 1" # dwDesiredAccess
+ asm "shl rdx, 28" # (GENERIC_READ 1 << 31 | GENERIC_WRITE 1 << 30)
+ asm "mov r8, 3" # dwShareMode
+ asm "mov r9, 0" # lpSecurityAttributes
+
+ asm "push qword 0" # hTemplateFile
+ asm "push qword 128" # dwFlagsAndAttributes (NORMAL_FILE = 128)
+ asm "push qword 3" # dwCreationDisposition (OPEN_EXISTING = 3)
+
+ # Shadow space
+ asm "push r9"
+ asm "push r8"
+ asm "push rdx"
+ asm "push rcx"
+
+ # Do call
+ asm "call CreateFileA"
+
+ # Set out to the returned value
+ # (The compiler assignes spaces sequentially. We have a ptr in r8, and a uint in r9)
+ asm "mov r9, rax"
+
+ return out
+;/
+
+/; _close_file (~void handle)
+
+ asm "mov rax, rsp"
+ asm "xor rdx, rdx"
+ asm "mov rcx, 32"
+ asm "div rcx"
+ asm "sub rsp, rdx"
+
+ asm "mov rcx, r8" # handle
+ asm "mov rdx, 0"
+ asm "mov r8, 0"
+ asm "mov r9, 0"
+
+ # Shadow space
+ asm "push r9"
+ asm "push r8"
+ asm "push rdx"
+ asm "push rcx"
+
+ asm "call CloseHandle"
+
+ asm "add rsp, 32"
+;/
+
+/; _read_byte (~void handle, ~uint8 byte) [int]
+ ~int out
+ int i = 0
+ out = ~i
+
+
+ asm "mov rax, rsp"
+ asm "xor rdx, rdx"
+ asm "mov rcx, 32"
+ asm "div rcx"
+ asm "sub rsp, rdx"
+
+ asm "mov rcx, r8" # handle
+ asm "mov rdx, r9" # buffer
+ asm "mov r8, 1" # one byte
+ asm "mov r9, r10" # read bytes buffer
+ asm "push qword 0"
+
+ # Shadow space
+ asm "push r9"
+ asm "push r8"
+ asm "push rdx"
+ asm "push rcx"
+
+ asm "call ReadFile"
+
+ return out`
+;/
+
+/; _write_byte (~void handle, ~uint8 byte) [int]
+ ~int out
+ int i = 0
+ out = ~i
+
+ asm "mov rax, rsp"
+ asm "xor rdx, rdx"
+ asm "mov rcx, 32"
+ asm "div rcx"
+ asm "sub rsp, rdx"
+
+ asm "mov rcx, r8" # handle
+ asm "mov rdx, r9" # buffer
+ asm "mov r8, 1" # one byte
+ asm "mov r9, 0"
+ asm "push qword 0"
+
+ # Shadow space
+ asm "push r9"
+ asm "push r8"
+ asm "push rdx"
+ asm "push rcx"
+
+ asm "call WriteFile"
+
+ return out`
+;/
+
+/; print_alert
+ _printf(~_alert{0})
+;/
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