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rf.rb
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rf.rb
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require_relative "bc"
require_relative "messages"
require_relative "m"
require_relative "vm"
require "io/console"
require "readline"
module Inspector
def handle_key
STDIN.echo = false
STDIN.raw!
c = STDIN.read_nonblock(1) rescue nil
STDIN.cooked!
return c
end
def handle_input
k = handle_key
case k
when ":" #enter command mode
while (buf = Readline.readline(": ", true))
begin
parse_command buf
rescue RuntimeError
break
end
end
when "q"
self.halt_vm()
end
end
def parse_command(com)
if (com == ":") then raise RuntimeError.new end
if (com.start_with?("b"))
parse_backward com
end
if (com == "i")
i_peek_instruction
end
if (com == "q")
self.halt_vm()
end
if (com == "\e")
raise RuntimeError.new
end
if (com == 'd')
i_toggle_debug
end
if (com == 'j')
i_down_stack
end
if (com == 'k')
i_up_stack
end
if (com == 'h')
i_halt
end
if (com == 'f')
i_step_forward
end
if (com == 'n')
i_peek_instruction
end
if (com == 'x')
i_execute_instruction
end
if (com == 'r')
i_resume_execution
end
if (com == 'p')
i_print
end
if (com == '?')
i_debug_info
end
end
def parse_backward com
com.slice!(0) # eat first character
com.strip!
n_skip = com.to_i
n_skip.downto(0) do
i_step_backward
end
end
def debug_bytecode_nop
puts "\tNOP"
end
def debug_bytecode_print
puts "\tPRINT.#{self.stack.last.to_s}"
end
def debug_bytecode_cons
puts "\tCONS"
end
def debug_bytecode_pop
puts "\tPOP"
end
def debug_bytecode_jmp
puts "\tJMP"
end
def debug_bytecode_jms
puts "\tJMS"
end
def debug_bytecode_jiz
puts "\tJIZ"
end
def debug_bytecode_text
puts "\tTEXT"
end
def debug_bytecode_and
puts "\tAND"
end
def debug_bytecode_not
puts "\tNOT"
end
def debug_bytecode_swap
puts "\tSWAP"
end
def debug_bytecode_dup
puts "\tDUP"
end
def debug_bytecode_rswp
puts "\tRSWP"
end
def debug_bytecode_iswp
puts "\tISWP"
end
def debug_bytecode_dec
puts "\tDEC\t\t\tDEPRECATED!!"
end
def debug_bytecode_add
puts "\tADD"
end
def debug_bytecode_sub
puts "\tSUB"
end
def debug_bytecode_mul
puts "\tMUL"
end
def debug_bytecode_div
puts "\tDIV"
end
def debug_bytecode_cray
puts "\tCRAY"
end
def debug_bytecode_jvm
puts "\tCOFFEETIME"
end
def debug_bytecode_exit
puts "\tEXIT"
end
def debug_bytecode_ret
puts "\tRET"
end
def debug_bytecode_call
puts "\tCALL"
end
def debug_bytecode_cls
puts "\tCLS"
end
def debug_bytecode_load
puts "\tLOAD"
end
def debug_bytecode_fetch
puts "\tFETCH"
end
def debug_bytecode_peek
puts "\tPEEK"
end
def i_debug_info
puts VMInfo::DEBUG_INFO
end
def i_print
puts VMInfo::PRINT_STACK + "\t[0x#{i_to_hex(@stack[@stack_ptr])}]"
end
def i_down_stack
print VMInfo::DOWN_STACK
self.set_stack_ptr (self.stack_ptr - 1) unless self.stack_ptr == -100
print "\t[#{self.stack_ptr}]\n"
end
def i_up_stack
print VMInfo::UP_STACK
self.set_stack_ptr (self.stack_ptr + 1) unless self.stack_ptr == -1
print "\t[#{self.stack_ptr}]\n"
end
def i_toggle_debug
# toggle debug
if @debug then @debug = false else @debug = true end
end
def i_halt
@running = false
puts VMInfo::HALT
end
def i_isp
puts VMInfo::PRINT_ISP + "_#{self.isp}@[0x#{i_to_hex(peek_instr)}]."
end
def i_step_forward
puts VMInfo::STEP_FORWARD
step()
end
def i_step_backward
puts VMInfo::STEP_BACKWARD
step_back()
end
def i_peek_instruction
puts VMInfo::PEEK_INSTR peek_instr
end
def i_execute_instruction
puts VMInfo::EXEC_INSTR peek_instr
interpret()
end
def i_resume_execution
if self.interpreting == false then
puts VMInfo::RESUME_EXECUTION
sleep 1
self.start_interpreter
end
end
end