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Bugfix from Oliver Schmidt

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git-svn-id: svn://svn.cc65.org/cc65/trunk@3480 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz
2005-04-21 02:08:29 +00:00
parent c0f6dea213
commit deab71739a
2 changed files with 55 additions and 50 deletions
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43
libsrc/apple2/cputc.s
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@@ -10,7 +10,7 @@
.endif
.export _cputcxy, _cputc
.export cputdirect, newline, putchar
.import popa, _gotoxy, VTABZ
.import popa, _gotoxy, VTABZ
.include "apple2.inc"
@@ -18,7 +18,8 @@
.ifdef __APPLE2ENH__
initconio:
sta SETALTCHAR ; Switch in alternate charset
sta SETALTCHAR ; Switch in alternate charset
bit LORES ; Limit SET80COL-HISCR to text
rts
.endif
@@ -28,65 +29,65 @@ initconio:
_cputcxy:
pha ; Save C
jsr popa ; Get Y
jsr popa ; Get Y
jsr _gotoxy
pla ; Restore C
_cputc:
cmp #$0D ; Test for \r = carrage return
cmp #$0D ; Test for \r = carrage return
beq left
cmp #$0A ; Test for \n = line feed
cmp #$0A ; Test for \n = line feed
beq newline
ora #$80 ; Turn on high bit
ora #$80 ; Turn on high bit
.ifndef __APPLE2ENH__
cmp #$E0 ; Test for lowercase
cmp #$E0 ; Test for lowercase
bcc cputdirect
and #$DF ; Convert to uppercase
and #$DF ; Convert to uppercase
.endif
cputdirect:
jsr putchar
inc CH ; Bump to next column
inc CH ; Bump to next column
lda CH
cmp WNDWDTH
bcc :+
left: lda #$00 ; Goto left edge of screen
left: lda #$00 ; Goto left edge of screen
sta CH
: rts
newline:
inc CV ; Bump to next line
inc CV ; Bump to next line
lda CV
cmp WNDBTM
bcc :+
lda WNDTOP ; Goto top of screen
lda WNDTOP ; Goto top of screen
sta CV
: jmp VTABZ
putchar:
.ifdef __APPLE2ENH__
ldy INVFLG
cpy #$FF ; Normal character display mode?
cpy #$FF ; Normal character display mode?
beq put
cmp #$E0 ; Lowercase?
cmp #$E0 ; Lowercase?
bcc mask
and #$7F ; Inverse lowercase
and #$7F ; Inverse lowercase
bra put
.endif
mask: and INVFLG ; Apply normal, inverse, flash
mask: and INVFLG ; Apply normal, inverse, flash
put: ldy CH
.ifdef __APPLE2ENH__
bit RD80VID ; In 80 column mode?
bpl col40 ; No, in 40 cols
bit RD80VID ; In 80 column mode?
bpl col40 ; No, in 40 cols
pha
tya
lsr ; Div by 2
tay
pla
bcs col40 ; Odd cols go in 40 col memory
bit HISCR
bcs col40 ; Odd cols go in 40 col memory
bit HISCR ; Assume SET80COL
sta (BASL),Y
bit LOWSCR
bit LOWSCR ; Assume SET80COL
rts
.endif
col40: sta (BASL),Y