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Move constructor code into the INIT segment

git-svn-id: svn://svn.cc65.org/cc65/trunk@3406 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2005-02-26 09:34:01 +00:00
parent d0bee35728
commit 8e95d036e3
4 changed files with 69 additions and 45 deletions

View File

@ -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

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@ -29,6 +29,8 @@
; - "Apple II ProDOS 8 TechNote #023: ProDOS 8 Changes and Minutia"
; - ProDOS TechRefMan, chapter 5.2.4
.segment "INIT"
initdostype:
lda MLI
cmp #$4C ; Is MLI present? (JMP opcode)
@ -40,6 +42,6 @@ initdostype:
: sta __dos_type
done: rts
.bss
.bss
__dos_type: .res 1

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@ -10,6 +10,11 @@
; Identify machine according to:
; "Apple II Miscellaneous TechNote #7: Apple II Family Identification"
; ------------------------------------------------------------------------
; Initialization
.segment "INIT"
initostype:
sec
jsr $FE1F
@ -30,13 +35,17 @@ next: inx
bne :-
beq next ; Branch always
; ------------------------------------------------------------------------
.code
_get_ostype:
lda ostype
ldx #$00
rts
.rodata
.rodata
index: .byte $B3, $00 ; Apple ][
.byte $B3, $1E, $00 ; Apple ][+
@ -65,6 +74,6 @@ value: .byte $38, $10 ; Apple ][
.byte $00
.bss
.bss
ostype: .res 1

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@ -35,13 +35,20 @@ BASIC_BUF_LEN = 239
FNAM_LEN = $280
FNAM = $281
.assert MAXARGS <= (BASIC_BUF_LEN - 2)/2, error, "Too many arguments"
MAXARGS = 10 ; Maximum number of arguments allowed
REM = $B2 ; BASIC token-code
NAME_LEN = 15 ; maximum length of command-name
; Validate sizes
.if MAXARGS > (BASIC_BUF_LEN - 2)/2
.error "Too many arguments"
.endif
; Get possible command-line arguments. Goes into the special INIT segment,
; which may be reused after the startup code is run
.segment "INIT"
; Get possible command-line arguments.
;
initmainargs:
; Assume that the program was loaded, a moment ago, by the traditional LOAD