blk/660

@@ -1 +1 @@
-1 11 LOADR+
+1 9 LOADR+

blk/662

@@ -5,3 +5,4 @@
 : _r64c DUP 63 > IF _oor THEN ;
 : _r256c DUP 255 > IF _oor THEN ;
 : _Rdp ( op rd -- op', place Rd ) 4 LSHIFT OR ;
+

blk/667

@@ -10,4 +10,4 @@
 0b1111110000000000 OPRdb SBRC, 0b1111111000000000 OPRdb SBRS,
 
 ( special cases )
-: CLR, DUP EOR, ;  : TST, DUP AND, ; : LSL, DUP ADD, ;
+: CLR, DUP EOR, ;  : TST, DUP AND, ;

blk/668

@@ -2,6 +2,7 @@
 : _r7ffc DUP 0x7ff > IF _oor THEN ;
 : _raddr12
     PC - DUP 0< IF 0x800 + _r7ffc 0x800 OR ELSE _r7ffc THEN ;
-: RJMP _raddr12 0xc000 OR ;
+0xc0 CONSTANT RJMPOP
-: RCALL _raddr12 0xd000 OR ;
+0xd0 CONSTANT RCALLOP
-: RJMP, RJMP A,, ; : RCALL, RCALL A,, ;
+: RJMP, _raddr12 RJMPOP 8 LSHIFT OR A,, ;
+: RCALL, _raddr12 RCALLOP 8 LSHIFT OR A,, ;

blk/669

@@ -1,12 +1,10 @@
-( a -- k7, absolute addr a, relative to PC in a k7 addr )
+( ex: L1 LBL! .. L1 @ RJMP, )
-: _r3fc DUP 0x3f > IF _oor THEN ;
+: LBL! ( l -- ) PC SWAP ! ;
-: _raddr7
+( ex: L1 FLBL, .. RJMPOP L1 FLBL! )
-    PC - DUP 0< IF 0x40 + _r3fc 0x40 OR ELSE _r3fc THEN ;
+: FLBL, ( l -- ) LBL! 0 A,, ;
-: _brbx ( a b op -- a ) OR SWAP _raddr7 3 LSHIFT OR ;
+: FLBL! ( op l -- )
-: BRBC 0xf400 _brbx ; : BRBS 0xf000 _brbx ; : BRCC 0 BRBC ;
+    @ DUP PC -^ 1-  ( op l off )
-: BRCS 0 BRBS ; : BREQ 1 BRBS ; : BRNE 1 BRBC ; : BRGE 4 BRBC ;
+    ROT 8 LSHIFT OR ( l op' )
-: BRHC 5 BRBC ; : BRHS 5 BRBS ; : BRID 7 BRBC ; : BRIE 7 BRBS ;
+    ( warning: l is a PC offset, not a mem addr! )
-: BRLO BRCS ; : BRLT 4 BRBS ; : BRMI 2 BRBS ; : BRPL 2 BRBC ;
+    SWAP 2 * ORG @ + ( op' addr ) ! ;
-: BRSH BRCC ; : BRTC 6 BRBC ; : BRTS 6 BRBS ; : BRVC 3 BRBC ;
-: BRVS 3 BRBS ;
 

blk/670

@@ -1,6 +0,0 @@
-0b11100 CONSTANT X 0b01000 CONSTANT Y 0b00000 CONSTANT Z
-0b11101 CONSTANT X+ 0b11001 CONSTANT Y+ 0b10001 CONSTANT Z+
-0b11110 CONSTANT -X 0b11010 CONSTANT -Y 0b10010 CONSTANT -Z
-: _ldst ( Rd XYZ op ) SWAP DUP 0x10 AND 8 LSHIFT SWAP 0xf AND
-    OR OR ( Rd op' ) SWAP _Rdp A,, ;
-: LD, 0x8000 _ldst ; : ST, SWAP 0x8200 _ldst ;

blk/671

@@ -1,11 +0,0 @@
-( L1 LBL! .. L1 ' RJMP LBL, )
-: LBL! ( l -- ) PC SWAP ! ;
-: LBL, ( l op -- ) SWAP @ 1- SWAP EXECUTE A,, ;
-( L1 FLBL, .. L1 ' RJMP FLBL! )
-: FLBL, ( l -- ) LBL! 0 A,, ;
-: FLBL! ( l opw -- )
-    ( warning: l is a PC offset, not a mem addr! )
-    SWAP @ 2 * ORG @ + PC 1- H@ ( opw addr tgt hbkp )
-    ROT HERE ! ( opw tgt hbkp ) SWAP ROT EXECUTE H@ ! ( hbkp )
-    HERE ! ;
-

recipes/sms/kbd/ps2ctl.fs

@@ -40,8 +40,6 @@ Z: pointer to the next scan code to push to the 595 )
 0x35 CONSTANT MCUCR
 0x33 CONSTANT TCCR0B
 0x3b CONSTANT GIMSK
-0x38 CONSTANT TIFR
-0x32 CONSTANT TCNT0
 0x16 CONSTANT PINB
 0x17 CONSTANT DDRB
 0x18 CONSTANT PORTB
@@ -50,9 +48,7 @@ Z: pointer to the next scan code to push to the 595 )
 3 CONSTANT CP
 0 CONSTANT LQ
 4 CONSTANT LR
-0x100 100 - CONSTANT TIMER_INITVAL
+0x100-100 CONSTANT TIMER_INITVAL
-( We need a lot of labels in this program... )
-VARIABLE L5 VARIABLE L6 VARIABLE L7 VARIABLE L8
 
 H@ ORG !
 L1 FLBL, ( main )
@@ -60,13 +56,13 @@ L2 FLBL, ( hdlINT0 )
 
 ( Read DATA and set GPIOR0/0 if high. Then, set flag T.
   no SREG fiddling because no SREG-modifying instruction )
-L2 ' RJMP FLBL! ( hdlINT0 )
+RJMPOP L2 FLBL! ( hdlINT0 )
 PINB DATA SBIC,
 GPIOR0 0 SBI,
 SET,
 RETI,
 
-L1 ' RJMP FLBL! ( main )
+RJMPOP L1 FLBL! ( main )
 16 RAMEND 0xff AND LDI,
 SPL 16 OUT,
 16 RAMEND 8 RSHIFT LDI,
@@ -99,138 +95,4 @@ DDRB LR SBI,
 SEI,
 
 L1 LBL! ( loop )
-L2 FLBL, ( BRTS processbit. flag T set? we have a bit to
-           process )
-28 ( YL ) 30 ( ZL ) CP, ( if YL == ZL, buf is empty )
-L3 FLBL, ( BRNE sendTo164. YL != ZL? buf has data )
-( nothing to do. Before looping, let's check if our
-  communication timer overflowed. )
-16 TIFR IN,
-16 1 ( TOV0 ) SBRC,
-L4 FLBL, ( RJMP processbitReset, timer0 overflow? reset )
-( Nothing to do for real. )
-L1 ' RJMP LBL, ( loop )
 
-( Process the data bit received in INT0 handler. )
-L2 ' BRTS FLBL! ( processbit )
-19 GPIOR0 IN, ( backup GPIOR0 before we reset T )
-19 0x1 ANDI, ( only keep the first flag )
-GPIOR0 0 CBI,
-CLT, ( ready to receive another bit )
-
-( We've received a bit. reset timer )
-L2 FLBL, ( RCALL resetTimer )
-
-( Which step are we at? )
-18 TST,
-L5 FLBL, ( BREQ processbits0 )
-18 1 CPI,
-L6 FLBL, ( BREQ processbits1 )
-18 2 CPI,
-L7 FLBL, ( BREQ processbits2 )
-( step 3: stop bit )
-18 CLR, ( happens in all cases )
-( DATA has to be set )
-19 TST, ( was DATA set? )
-L1 ' BREQ LBL, ( loop, not set? error, don't push to buf )
-( push r17 to the buffer )
-Y+ 17 ST,
-L8 FLBL, ( RCALL checkBoundsY )
-L1 ' RJMP LBL,
-
-L5 ' BREQ FLBL! ( processbits0 )
-( step 0 - start bit )
-( DATA has to be cleared )
-19 TST, ( was DATA set? )
-L1 ' BRNE LBL, ( loop. set? error. no need to do anything. keep
-                 r18 as-is. )
-( DATA is cleared. prepare r17 and r18 for step 1 )
-18 INC,
-17 0x80 LDI,
-L1 ' RJMP LBL, ( loop )
-
-L6 ' BREQ FLBL! ( processbits1 )
-( step 1 - receive bit
-  We're about to rotate the carry flag into r17. Let's set it
-  first depending on whether DATA is set. )
-CLC,
-19 0 SBRC, ( skip if DATA is cleared )
-SEC,
-( Carry flag is set )
-17 ROR,
-( Good. now, are we finished rotating? If carry flag is set,
-  it means that we've rotated in 8 bits. )
-L1 ' BRCC LBL, ( loop )
-( We're finished, go to step 2 )
-18 INC,
-L1 ' RJMP LBL, ( loop )
-
-L7 ' BREQ FLBL! ( processbits2 )
-( step 2 - parity bit )
-1 19 MOV,
-19 17 MOV,
-L5 FLBL, ( RCALL checkParity )
-1 16 CP,
-L6 FLBL, ( BRNE processBitError, r1 != r16? wrong parity )
-18 INC,
-L1 ' RJMP LBL, ( loop )
-
-L6 ' BRNE FLBL! ( processBitError )
-18 CLR,
-19 0xfe LDI,
-L6 FLBL, ( RCALL sendToPS2 )
-L1 ' RJMP LBL, ( loop )
-
-L4 ' RJMP FLBL! ( processbitReset )
-18 CLR,
-L4 FLBL, ( RCALL resetTimer )
-L1 ' RJMP LBL, ( loop )
-
-L3 ' BRNE FLBL! ( sendTo164 )
-( Send the value of r20 to the '164 )
-PINB LQ SBIS, ( LQ is set? we can send the next byte )
-L1 ' RJMP LBL, ( loop, even if we have something in the
-                 buffer, we can't: the SMS hasn't read our
-                 previous buffer yet. )
-( We disable any interrupt handling during this routine.
-  Whatever it is, it has no meaning to us at this point in time
-  and processing it might mess things up. )
-CLI,
-DDRB DATA SBI,
-20 Z+ LD,
-L3 FLBL, ( RCALL checkBoundsZ )
-16 8 LDI,
-
-L7 LBL! ( sendToPS2Loop )
-PORTB DATA CBI,
-20 7 SBRC, ( if leftmost bit isn't cleared, set DATA high )
-PORTB DATA SBI,
-( toggle CP )
-PORTB CP CBI,
-20 LSL,
-PORTB CP SBI,
-16 DEC,
-L7 ' BRNE LBL, ( sendToPS2Loop, not zero yet? loop )
-( release PS/2 )
-DDRB DATA CBI,
-SEI,
-( Reset the latch to indicate that the next number is ready )
-PORTB LR SBI,
-PORTB LR CBI,
-L1 ' RJMP LBL, ( loop )
-
-L2 ' RCALL FLBL! L4 ' RCALL FLBL! L2 LBL! ( resetTimer )
-16 TIMER_INITVAL LDI,
-TCNT0 16 OUT,
-16 0x02 ( TOV0 ) LDI,
-TIFR 16 OUT,
-RET,
-
-L6 ' RCALL FLBL! ( sendToPS2 )
-( Send the value of r19 to the PS/2 keyboard )
-CLI,
-( First, indicate our request to send by holding both Clock low
-  for 100us, then pull Data low lines low for 100us. )
-PORTB CLK CBI,
-DDRB CLK SBI,
-L2 ' RCALL LBL, ( resetTimer )