addled shift right logical (srl)

assembler.rb

@@ -51,6 +51,16 @@ def lui(reg, val)
 	word op
 end
 
+# shift right logical
+def srl(src, amt, dest)
+	#      oooooo ----- sssss ddddd hhhhh oooooo
+	op = 0b000000_00000_00000_00000_00000_000010
+	op |= (src & 0b11111) << 16
+	op |= (amt & 0b11111) << 6
+	op |= (dest & 0b11111) << 11
+	word op
+end
+
 
 # this is a terrible idea and im doing it
 #$labels = {}
@@ -59,7 +69,11 @@ end
 #	super
 #end
 
+
+
+# # # CONSTANTS # # #
 $base_addr = 0x80010000 # 0x10000 # 0x80010000
+$file_size = 0x800
 
 
 # # # EXE HEADER # # #
@@ -68,7 +82,7 @@ zero_fill 0x00f
 word $base_addr # initial pc
 word 0x00000000 # initial GP/R28
 word $base_addr # destintation address in RAM
-word 0x800 # file size excluding header (must be N * 0x800)
+word $file_size # file size excluding header (must be N * 0x800)
 word 0x00000000 # Unknown/Unused
 word 0x00000000 # Unknown/Unused
 word 0x00000000 # Memfill start address
@@ -87,16 +101,28 @@ $bytes = []
 # # # PROGRAM CODE # # #
 nop
 nop
+
+lui 2, 0
+lui 3, 0
+
+
+lui 2, 1
 nop
+
+srl 2, 14, 3
+srl 2, 1, 6
+nop
+
 nop
 nop
 jmp $base_addr
 nop
 
-lui 2, 1
 
 
-# int 0b101011_00010_00001_01111111_11111111
+
+
+
 
 string "this is a test lol"
 word 0xFFAAFFAA
@@ -112,7 +138,7 @@ word 0b001000_00101_00101_11111111_11111111
 
 
 
-zero_fill 0xfff
+zero_fill $file_size - 1
 
 f = File.new "LOADTHIS.EXE", "wb"
 f.write $exe_header.pack("C*")