- Implemented the multiply expression into the assembler.

- Implemented support for the SIB addressing mode into
  the assembler.

  SIB is short for "Scale Index, and Base", and works
  much like x86's version of SIB (scale*index+base),
  although my version supports any scale value between
  1, and 256.

- Redid the line shifting routine in SuBEditor.

  It now uses memcpy, and memset to do that, and also
  supports shifting the line left, or right by any
  number of characters.

1 files changed, 0 insertions, 147 deletions

diff --git a/programs/sub-suite/tmp-stuff/print_char.s b/programs/sub-suite/tmp-stuff/print_char.s
deleted file mode 100644
index e12461c..0000000
--- a/programs/sub-suite/tmp-stuff/print_char.s
+++ /dev/null
@@ -1,147 +0,0 @@
-print_char:
-;	sta a		; Save the typed character for now.
-	pha		; Preserve the character.
-;	ldb #2		; Make sure that set_ptr sets the third pointer.
-	lda.d #buffer	; Set the third pointer to the start of the screen buffer.
-	pha.q		; Push the pointer onto the stack.
-	lda sp+9	; Get the character back.
-;	jsr set_ptr	;
-;	ldb #0		; Set B to zero.
-;	tba		; Set the Accumulator to zero.
-;	lda a		; Get back the character.
-	cmp #$1B	; Did the user type an escape character?
-	beq esc		; Yes, so go check the escape code.
-	cmp #'\n'	; No, but did the user type a newline?
-	beq nl		; Yes, so handle the newline.
-	cmp #$C		; No, but did the user type Ctrl+L?
-	beq clr_scr	; Yes, so clear the screen.
-	cmp #19		; No, but did the user type Ctrl+S?
-	beq en_step	; Yes, so enable clock/instruction stepping.
-	cmp #18		; No, but did the user type Ctrl+R?
-	beq dis_step	; Yes, so disable clock/instruction stepping.
-	cmp #'\b'	; No, but did the user type a backspace?
-	beq bs		; Yes, so handle the backspace.
-	cmp #$7F	; No, but did they type Delete?
-	beq bs		; Yes, so treat it as a backspace.
-printc:
-	lda #0		; No, so start trying to print a character.
-	sta d		;
-	lda (sp+1), y	; Are we at the end of the string?
-	beq @save	; Yes, so just print the character.
-	lda b		; No, but was the flag set?
-	bne @save	; Yes, so don't shift the line.
-	sty.w scr_ptr	; No, so save the cursor index for later.
-	jsr fndend	; Find the end of the line.
-	bra @shift	; Start shifting the line right.
-@update:
-	lda scr_col	; Save the current column position for later.
-	sta scr_tcol	;
-@update1:
-	jsr findend	; Find the end of the line.
-	sta e		; Use it for redrawing the line.
-	sta scr_row	; Set the row position to to the end of the line.
-	jsr findst	; Find the start of the line.
-	lda scr_row	; Get the start of the line.
-@update2:
-	sta f		; Set the starting line, to the start of the line.
-	jsr rdrw_ln	; Redraw the line.
-	lda scr_trow	; Get the real row position back.
-	sta scr_row	;
-	lda scr_tcol	; Get the real column position back.
-	sta scr_col	;
-	jsr update_pos	; Update the cursor's position.
-	dec d		;
-	bra @save1	;
-@shift:
-	ldy.w scr_ptr3	;
-	inc scr_ptr3	;
-	tyx		;
-	dey		;
-	ldb #1		;
-	stb d		;
-	jsr shftln	;
-	ldb #1		;
-	stb d		;
-;	lda a		;
-	lda sp+9	;
-	sta (sp+1), y	; store typed character into the input buffer.
-	lda scr_row	;
-	sta scr_trow	;
-	bra @update	;
-@save:
-	ldb d		;
-	bne @update	;
-@save1:
-;	lda a		;
-	lda sp+9	;
-	sta (sp+1), y	; store typed character into the input buffer.
-@incr:
-	inc scr_col	; Increment the cursor's x coordinate.
-	iny		;
-@wrapped:
-	ldb #1		;
-	stb f		;
-	ldb scr_col	;
-	cpb #maxcol+1	;
-	bcs @scrolled	;
-@print:
-	sta scr		; Echo typed character.
-	ldb f		;
-	beq @wrap	;
-	bra printc_end	;
-@scrolled:
-	ldb scr_row	;
-	cpb #maxrow	;
-	bcs @scroll	;
-@wrapped2:
-	ldb #0		;
-	stb f		;
-	bra @print	;
-@scroll:
-	sta scr		; Echo typed character.
-	clc		;
-	lda #1		;
-	sta wrapped	;
-	jsr scrl_down	;
-@wrap:
-	ldb #0
-	stb scr_col	;
-	ldb scr_row	;
-	cpb #maxrow	;
-	bcs @wrap2	;
-@wrap1:
-	inc scr_row	;
-@wrap2:
-	phx.w		;
-	clc		;
-	lda scr_row	;
-	adc scr_str	;
-	tax		;
-	jsr setbit	;
-	plx.w		;
-	jsr update_pos	;
-printc_end:
-	pla.q		; Pull the pointer off the stack.
-	pla		; Pull the character off the stack.
-	and #0		; Reset A.
-	rts		;
-
-nl:
-	lda #0		; Reset A.
-	ldb (sp+1), y	; Is this character not a null terminator?
-	bne @scroll	; Yes, so don't overwrite it.
-	sta (sp+1), y	; No, so overwrite it.
-@scroll:
-	sta scr_col	; Move the cursor to the start of the next line.
-	lda scr_row	; Get the row position.
-	cmp #maxrow	; Are we at the bottom of the screen?
-	bcc @incr	; No, so move down one line.
-	jsr scrl_down	; Yes, so scroll down one line.
-	bra @end	; We are done.
-@incr:
-	inc scr_row	; Move the cursor down by one line.
-	jsr update_pos	; Update the cursor's position.
-@end:
-	lda #'\n'	; Print the newline.
-	sta a		;
-	rts		;