Add words RSHIFT and LSHIFT

blk/054

@@ -10,7 +10,7 @@ MOD         a b -- c        a % b -> c
 AND         a b -- c        a & b -> c
 OR          a b -- c        a | b -> c
 XOR         a b -- c        a ^ b -> c
+LSHIFT      a u -- c        a << u -> c
+RSHIFT      a u -- c        a >> u -> c
 
 Shortcuts: 1+ 2+ 1- 2-
-
-

blk/215

@@ -6,7 +6,7 @@
 ( A, spits an assembled byte, A,, spits an assembled word
   Both increase PC. To debug, change C, to .X )
 : A, C, ; : A,, SPLITB A, A, ;
-: <<3 8 * ;    : <<4 16 * ;
+: <<3 3 LSHIFT ;    : <<4 4 LSHIFT ;
 ( As a general rule, IX and IY are equivalent to spitting an
   extra 0xdd / 0xfd and then spit the equivalent of HL )
 : IX 0xdd A, HL ; : IY 0xfd A, HL ;

blk/282

@@ -1 +1 @@
-1 51 LOADR+
+1 53 LOADR+

blk/334

@@ -0,0 +1,12 @@
+CODE RSHIFT ( n u -- n )
+    BC POPqq, ( u )
+    HL POPqq, ( n )
+    chkPS,
+    B C LDrr,
+    B INCr, B DECr, IFNZ,
+        BEGIN,
+            H SRLr, L RRr,
+        DJNZ, AGAIN,
+    THEN,
+    HL PUSHqq,
+;CODE

blk/335

@@ -0,0 +1,13 @@
+CODE LSHIFT ( n u -- n )
+    BC POPqq, ( u )
+    HL POPqq, ( n )
+    chkPS,
+    B C LDrr,
+    B INCr, B DECr, IFNZ,
+        BEGIN,
+            L SLAr, H RLr,
+        DJNZ, AGAIN,
+    THEN,
+    HL PUSHqq,
+;CODE
+

blk/379

@@ -9,8 +9,8 @@
 : SDCMDR7
     _sdcSel
     _cmd                 ( r )
-    _idle 256 * _idle +  ( r arg1 )
+    _idle 8 LSHIFT _idle +  ( r arg1 )
-    _idle 256 * _idle +  ( r arg1 arg2 )
+    _idle 8 LSHIFT _idle +  ( r arg1 arg2 )
     _sdcDesel
 ;
 

blk/383

@@ -10,6 +10,6 @@
         SWAP 1+          ( crc a+1 )
     LOOP
     DROP                 ( crc1 )
-    _idle 256 * _idle +  ( crc2 )
+    _idle 8 LSHIFT _idle +  ( crc2 )
     _wait DROP _sdcDesel
     = NOT IF _err THEN ;

blk/499

@@ -3,14 +3,14 @@
     ( 4 256b sectors per block, 10 sec per cyl, 40 cyl max )
     10 /MOD ( sec cyl )
     DUP 39 > IF _err THEN
-    256 * + ( cylsec )
+    8 LSHIFT + ( cylsec )
 ;
 : FD@! ( wref blk -- )
     1 @DCSTAT NOT IF _err THEN
-    4 * ( wr sec )
+    2 LSHIFT ( 4 * -- wr sec )
     4 0 DO ( wr sec )
         DUP I + _cylsec ( wr sec cs )
-        I 256 * BLK( + ( wr sec cs addr )
+        I 8 LSHIFT BLK( + ( wr sec cs addr )
         1 ROT ROT ( wr sec drv cs addr )
         4 PICK EXECUTE NOT IF _err THEN
     LOOP 2DROP ;