ant vm

Instruction set

mnemonic	opcode	parameter	description
NOP	0x00		do nothing
PSH	0x01	byte	load absolute value
LDM	0x02	word	load word at address
LDS	0x03	word	load bytes until encountering '\0' (included)
POP	0x04		pop
RET	0x0a	byte	return from function, parameter is number of return values
CALL	0x0c	word	call function at
HLT	0x0d		stops execution, returns value on top of stack
JMP	0x10	word	jump to address
JEZ	0x11	word	jump to address if stack top is 0
PUTC	0x30		print accumulator value as ascii