mirror of https://github.com/mgcaret/of816.git
resolve #6; general clean-up
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mgcaret
parent
7f57ba6f06
commit
32ec1e9df4
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@ -3102,7 +3102,7 @@ getbuf: lda [SYSVARS],y ; get buffer pointer
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setbuf1: ldy #SV_SBUF1 ; select buf 1
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setbuf: pla ; update pointers
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sta YR ; in YR
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sta [SYSVARS],y ; in the appropriate system var
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sta [SYSVARS],y ; in the appropriate system var
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sta STACKBASE+4,x ; in the parameter stack
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iny
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iny
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@ -3110,7 +3110,8 @@ setbuf: pla ; update pointers
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sta YR+2
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sta [SYSVARS],y
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sta STACKBASE+6,x
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jsr _move
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sec ; move down is faster
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jsr _memmove
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NEXT
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nomem: ldy #.loword(-18)
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lda #.hiword(-18)
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@ -3779,7 +3780,7 @@ dword MOVE,"MOVE"
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jsr _popxr
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jsr _popyr
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jsr _popwr
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jsr _move
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jsr _memmove
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NEXT
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eword
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@ -3793,7 +3794,8 @@ dword CMOVEUP,"CMOVE>"
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jsr _popxr
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jsr _popyr
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jsr _popwr
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jsr _moveup
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clc
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jsr _memmove_c
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NEXT
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eword
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@ -4483,7 +4485,8 @@ dword PACK,"PACK"
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inc YR
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bne :+
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inc YR+2
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: jsr _move
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: sec ; move down is faster
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jsr _memmove_c
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NEXT
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bad: ldy #.loword(-18)
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lda #.hiword(-18)
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@ -5396,7 +5399,8 @@ hword SCONCAT,"SCONCAT"
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lda XR+2
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adc STACKBASE+2,x
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sta STACKBASE+2,x
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jsr _move ; move the string
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sec ; move down is faster
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jsr _memmove_c ; move the string
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NEXT
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eword
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@ -899,72 +899,6 @@ good: sec
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.endproc
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.a16
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; Move XR bytes from [WR] to [YR], starting at the bottom
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; trashes WR, YR, and XR
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; could be optimized to move words, excepting the last one if odd number of bytes
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; use for moving data downward, but that adds two comparison instructions which
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; are slower than the SEP/REP, maybe
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.proc _move
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.if 1 ; fast move in memmgr.s
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sec
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jmp _memmove_c
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.else ; slower but smaller move
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lp: lda XR+2 ; see if zero bytes
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ora XR
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bne :+
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rts
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: jsr _decxr ; pre-decrement XR
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sep #SHORT_A
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lda [WR]
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sta [YR]
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rep #SHORT_A
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jsr _incwr ; post increment WR
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inc YR ; and YR
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bne lp
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inc YR+2
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bra lp
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.endif
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.endproc
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; Move XR bytes from [WR] to [YR], starting at the top
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; trashes YR and XR
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; could be optimized to move words, excepting the last one if odd number of bytes
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; use for moving data upward
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.proc _moveup
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.if 1 ; fast move in memmgr.s
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clc
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jmp _memmove_c
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.else ; slower but smaller move
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lp: jsr _wrplusxr
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lda WR ; move WR to 1 past the end of the block
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clc
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adc XR
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sta WR
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lda WR+2
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adc XR+2
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sta WR+2
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lda YR ; move YR to 1 past the end of the block
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clc
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adc XR
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sta YR
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lda YR+2
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adc XR+2
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sta YR+2
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lda XR+2
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ora XR
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bne :+
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rts
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: jsr _decxr ; decrement XR
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jsr _decwr ; and WR
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jsr _decyr ; and YR
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sep #SHORT_A
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lda [WR]
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sta [YR]
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rep #SHORT_A
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bra lp
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.endif
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.endproc
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; With word header address in YR, set YR to previous dictionary entry header
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; return with Z flag set if the new address is zero
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.proc _prevword
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@ -20,6 +20,7 @@ samesign: lda STACKBASE+6,x
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cmp STACKBASE+0,x
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: rts
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.endproc
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_test32 = _stest32::samesign
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.proc _invertay
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pha
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48
asm/memmgr.s
48
asm/memmgr.s
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@ -419,17 +419,16 @@ loop: jsr _chk_himem
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done: rts
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.endproc
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.if 1 ; include fast memory move routines
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; Memory move routines
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; move XR bytes of memory from [WR] to [YR]
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; Move appropriately based
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; Move appropriately based on source and destination
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.proc _memmove
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lda WR
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cmp YR
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lda WR+2
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sbc YR+2
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; now carry is set if WR >= XR, move down in that case, otherwise move up
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; now carry is set if WR >= YR, move down in that case, otherwise move up
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; fall-through
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.endproc
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@ -509,7 +508,7 @@ md6: pha
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jsl f:_callzr
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plb
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pla
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eor #$ffff ; a xor $ffff = $ffff - a = -1 - a
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eor #$FFFF ; a xor $FFFF = $FFFF - a = -1 - a
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adc sizel
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sta sizel ; sizel = sizel - 1 - a
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sep #$20
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@ -517,10 +516,9 @@ md6: pha
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lda sizeh ; update high byte of size
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sbc #$00
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bcs md1
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rep #$30
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plp
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.a16
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.i16
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plp
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plx
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rts
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.endproc
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@ -533,11 +531,27 @@ tol = YR
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sizeh = XR+2
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sizel = XR
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mu7 = ZR
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; first convert start addresses to end addresses
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lda WR
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clc
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adc XR
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sta WR
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lda WR+2
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adc XR+2
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sta WR+2
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lda YR
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clc
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adc XR
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sta YR
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lda YR+2
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adc XR+2
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sta YR+2
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; now start the move
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phx
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php
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lda #$6B00 ; RTL
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sta mu7+2
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lda #$0054 ; MVN
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lda #$0044 ; MVP
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sta mu7
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sep #$21 ; 8-bit accumulator, set carry
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.a8
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@ -557,25 +571,25 @@ mu7 = ZR
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cmp froml
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bcs mu3
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bra mu4
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.a8
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.a8 ; a is 8 bits when we branch to mu1!
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mu1: sta sizeh
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eor #$80 ; set v if size is zero, clear v otherwise
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eor #$80 ; set v if size is zero, clear v otherwise
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sbc #$01
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cpx #$FFFF
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bne mu2 ; if x is not $FFFF, then y must be
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bne mu2 ; if x is not $FFFF, then y must be
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dec mu7+2
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rep #$20
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.a16
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tya
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cpy #$FFFF
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bne mu4
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.a8
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sep #$20
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.a8
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mu2: dec mu7+1
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rep #$20
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.a16
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mu3: txa
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mu4: bvc mu5 ; branch if sizeh is nonzero
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mu4: bvc mu5 ; branch if sizeh is nonzero
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cmp sizel
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bcc mu6
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lda sizel
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@ -585,18 +599,17 @@ mu6: pha
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jsl f:_callzr
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plb
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pla
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eor #$FFFF ; a xor $FFFF = $FFFF - a = -1 - a
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eor #$FFFF ; a xor $FFFF = $FFFF - a = -1 - a
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adc sizel
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sta sizel ; sizel = sizel - 1 - a
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sta sizel ; sizel = sizel - 1 - a
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sep #$20
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.a8
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lda sizeh ; update high byte of size
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lda sizeh ; update high byte of size
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sbc #$00
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bcs mu1
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rep #$30
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plp
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.a16
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.i16
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plp
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plx
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rts
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.endproc
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@ -623,4 +636,3 @@ mu6: pha
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pla ; ( 0 zrh zrl ah al -- 0 zrh zrl )
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rtl ; ( 0 zrh zrl -- )
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.endproc
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.endif
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