diff --git a/l7801.lua b/l7801.lua
index 677a6a1..cce6ffe 100644
--- a/l7801.lua
+++ b/l7801.lua
@@ -52,7 +52,8 @@ local Keywords_7801 = {
 }
 local Registers_7801 = {
     a=8,b=8,c=8,d=8,e=8,h=8,l=8,v=8,
-    bc=16,de=16,hl=16,sp=16,va=16
+    bc=16,de=16,hl=16,sp=16,va=16,
+    pa=8,pb=8,pc=8,mk=8,mb=8,mc=8,tm0=8,tm1=8,s=8,
 }
 local Interrupts_7801 = lookupify{
     'f0','ft','f1','f2','fs'
@@ -140,6 +141,15 @@ local opcode_reg_reg_list = {
         e = lookupify{'mov'},
         h = lookupify{'mov'},
         l = lookupify{'mov'},
+        pa = lookupify{'mov'},
+        pb = lookupify{'mov'},
+        pc = lookupify{'mov'},
+        mk = lookupify{'mov'},
+        mb = lookupify{'mov'},
+        mc = lookupify{'mov'},
+        tm0 = lookupify{'mov'},
+        tm1 = lookupify{'mov'},
+        s = lookupify{'mov'},
     },
     b = {
         a = lookupify{'mov'},
diff --git a/samples/scv_hello.l65 b/samples/scv_hello.l65
index 725e08b..51c6b4d 100644
--- a/samples/scv_hello.l65
+++ b/samples/scv_hello.l65
@@ -6,29 +6,29 @@ section{"rom", org=0x8000}
     di
     lxi sp,0xFFD2
     ei
-	calt 0x8C
+    calt 0x8C
 
-	lxi hl,vdc_data
-	lxi de,0x3400
-	mvi c,0x03 
-	block
+    lxi hl,vdc_data
+    lxi de,0x3400
+    mvi c,0x03 
+    block
 
     lxi hl,message
     lxi de,0x3044
-	lxi bc,0x01ff
+    lxi bc,0x01ff
 	
 @loop_0
     block
     dcr b
-	jr loop_0
+    jr loop_0
 
-	-- beep
+    -- beep
     lxi hl,0x3600    
     calf 0xfb0
     
 @loop_1
     nop
-	jr loop_1
+    jr loop_1
 
 section{"vdc_data", org=0x8030}
     dc.b 0xC0,0x00,0x00,0xF2
@@ -37,4 +37,4 @@ section{"message", org=0x8040}
     dc.b "\t\t\t\t Hello world! \t\t\t\t"
     dc.b 0x00
     
-writebin(filename .. '.bin')
\ No newline at end of file
+writebin(filename .. '.bin')
diff --git a/samples/scv_test.l65 b/samples/scv_test.l65
index 507573b..ad68f98 100644
--- a/samples/scv_test.l65
+++ b/samples/scv_test.l65
@@ -168,5 +168,14 @@ section{"rom", org=0x8000}
     out 0x00
     out 0x5a
     out 0xbf
+    mov a,pa
+    mov a,pb
+    mov a,pc
+    mov a,mk
+    mov a,mb
+    mov a,mc
+    mov a,tm0
+    mov a,tm1
+    mov a,s
     
 writebin(filename .. '.bin')
\ No newline at end of file
diff --git a/uPD7801.lua b/uPD7801.lua
index 09624df..ce5bd43 100644
--- a/uPD7801.lua
+++ b/uPD7801.lua
@@ -412,12 +412,32 @@ for k,v in pairs(opinout) do
     end
 end
 
+
+local op4car8={
+    movapa=M.op(0xc0,10),
+    movapb=M.op(0xc1,10),
+    movapc=M.op(0xc2,10),
+    movamk=M.op(0xc3,10),
+    movamb=M.op(0xc4,10),
+    movamc=M.op(0xc5,10),
+    movatm0=M.op(0xc6,10),
+    movatm1=M.op(0xc7,10),
+    movas=M.op(0xc8,10),
+} M.op4car8 = op4car8
+for k,v in pairs(op4car8) do
+    M[k] = function()
+        table.insert(M.section_current.instructions, { size=2, cycles=v.cycles, bin={ 0x4c, v.opc } })
+    end
+end
+
 return M
 
 --[[ [todo]
     	
 16 bits instructions:
     0x4cxx
+    
+
     0x4dxx
     0x60xx
     0x64xx