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Move constructor code into the INIT segment

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git-svn-id: svn://svn.cc65.org/cc65/trunk@3406 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz
2005-02-26 09:34:01 +00:00
parent d0bee35728
commit 8e95d036e3
4 changed files with 69 additions and 45 deletions
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84
libsrc/apple2/cputc.s
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@@ -14,60 +14,66 @@
.include "apple2.inc"
; ------------------------------------------------------------------------
; Initialization
.segment "INIT"
initconio:
lda #$FF ; Normal character display mode
sta INVFLG
lda #$00
jsr SETWND ; Reset text window to full screen
rts
jmp SETWND ; Reset text window to full screen
; ------------------------------------------------------------------------
; Plot a character - also used as internal function
.code
_cputcxy:
pha ; Save C
jsr popa ; Get Y
jsr _gotoxy
pla ; Restore C
pha ; Save C
jsr popa ; Get Y
jsr _gotoxy
pla ; Restore C
_cputc:
cmp #$0D ; Test for \r = carrage return
beq left
cmp #$0A ; Test for \n = line feed
beq newline
ora #$80 ; Turn on high bit
cmp #$E0 ; Test for lowercase
bcc cputdirect
and #$DF ; Convert to uppercase
cmp #$0D ; Test for \r = carrage return
beq left
cmp #$0A ; Test for \n = line feed
beq newline
ora #$80 ; Turn on high bit
cmp #$E0 ; Test for lowercase
bcc cputdirect
and #$DF ; Convert to uppercase
cputdirect:
jsr putchar
inc CH ; Bump to next column
lda CH
cmp #40
bne done
jsr putchar
inc CH ; Bump to next column
lda CH
cmp #40
bne done
left: lda #$00 ; Goto left edge of screen
sta CH
sta CH
done: rts
newline:
inc CV
lda CV
cmp #24
bne :+
lda #$00
sta CV
: jsr BASCALC
rts
putchar:
and INVFLG ; Apply normal, inverse, flash
ldy CH
sta (BASL),Y
rts
inc CV
lda CV
cmp #24
bne :+
lda #$00
sta CV
: jmp BASCALC
putchar:
and INVFLG ; Apply normal, inverse, flash
ldy CH
sta (BASL),Y
rts
_gotoxy:
sta CV ; Store Y
jsr BASCALC
jsr popa ; Get X
sta CH ; Store X
rts
sta CV ; Store Y
jsr BASCALC
jsr popa ; Get X
sta CH ; Store X
rts