/*Asm labels can only be defined once
in a task.<F5> will spawn a new task
each time, so you don't get redefine
error, like when repeatedly #including
it from the cmd line.
These are many useful kernel
routines ::/Kernel/StrA.HC
intended to be called from
asm.Generally, they preserve
regs.
You can call any routine you
like, C or asm, if you import it.
Be aware that C routines do not
preserve RAX,RBX,RCX,RDX,R8,R9.
When calling from the shell or
from C, preserve all other regs.
*/
asm {
//Opcodes are slightly different to make writing my x86_64 assembler easier.
//See /Compiler/OpCodes.DD.
MY_WORLD_MSG:
//Define U8 does not put terminating zeros
//on strings.
DU8 "World\n",0;
//My convention is to put an underscore
//on C callable asm routines.
_HELLO_WORLD::
PUSH RSI //See REGG_LOCAL_VARS & REGG_LOCAL_NON_PTR_VARS
MOV RCX,10
@@05: MOV RAX,RCX
CALL PUT_HEX_U8
MOV RAX,CH_SPACE
CALL PUT_CHARS
MOV RAX,'Hello ' //Supports multi-byte char consts
CALL PUT_CHARS
//We broke it in two pieces to show different ways.
MOV RSI,MY_WORLD_MSG
CALL PUT_STR
LOOP @@05
POP RSI
RET
};
Call(_HELLO_WORLD);