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git-svn-id: svn://svn.cc65.org/cc65/trunk@2128 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2003-05-02 15:00:45 +00:00
parent 51a9e4351b
commit 58b9530c2b
15 changed files with 522 additions and 0 deletions

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@ -27,6 +27,7 @@ S_OBJS = _scrsize.o \
color.o \
cputc.o \
crt0.o \
ctype.o \
cvline.o \
getenv.o \
gotox.o \

30
libsrc/nes/cclear.s Normal file
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;
; Ullrich von Bassewitz, 08.08.1998
;
; void cclearxy (unsigned char x, unsigned char y, unsigned char length);
; void cclear (unsigned char length);
;
.export _cclearxy, _cclear
.import popa, _gotoxy, cputdirect
.importzp tmp1
_cclearxy:
pha ; Save the length
jsr popa ; Get y
jsr _gotoxy ; Call this one, will pop params
pla ; Restore the length and run into _cclear
_cclear:
cmp #0 ; Is the length zero?
beq L9 ; Jump if done
sta tmp1
L1: lda #$20 ; Blank - screen code
jsr cputdirect ; Direct output
dec tmp1
bne L1
L9: rts

32
libsrc/nes/chline.s Normal file
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;
; Ullrich von Bassewitz, 08.08.1998
;
; void chlinexy (unsigned char x, unsigned char y, unsigned char length);
; void chline (unsigned char length);
;
.export _chlinexy, _chline
.import popa, _gotoxy, cputdirect
.importzp tmp1
.include "nes.inc"
_chlinexy:
pha ; Save the length
jsr popa ; Get y
jsr _gotoxy ; Call this one, will pop params
pla ; Restore the length
_chline:
cmp #0 ; Is the length zero?
beq L9 ; Jump if done
sta tmp1
L1: lda #CH_HLINE ; Horizontal line, screen code
jsr cputdirect ; Direct output
dec tmp1
bne L1
L9: rts

72
libsrc/nes/clrscr.s Normal file
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;
; Written by Groepaz/Hitmen <groepaz@gmx.net>
; Cleanup by Ullrich von Bassewitz <uz@cc65.org>
;
; void clrscr (void);
;
.export _clrscr
.import ppubuf_waitempty
.include "nes.inc"
.proc _clrscr
; wait until all console data has been written
jsr ppubuf_waitempty
; wait for vblank
lda #0
sta VBLANK_FLAG
@w2: lda VBLANK_FLAG
beq @w2
; switch screen off
lda #%00000000
sta PPU_CTRL2
; Set start address to Name Table #1
lda #$20
sta PPU_VRAM_ADDR2
lda #$00
sta PPU_VRAM_ADDR2
; Clear Name Table #1
lda #' '
ldx #$f0 ; 4*$f0=$03c0
beg: sta PPU_VRAM_IO
sta PPU_VRAM_IO
sta PPU_VRAM_IO
sta PPU_VRAM_IO
dex
bne beg
lda #$23 ;
sta PPU_VRAM_ADDR2 ; Set start address to PPU address $23C0
lda #$C0 ; (1st attribute table)
sta PPU_VRAM_ADDR2
ldx #$00
lll: lda #$00 ; Write attribute table value and auto increment
sta PPU_VRAM_IO ; to next address
inx
cpx #$40
bne lll
; switch screen on again
lda #%00011110
sta PPU_CTRL2
rts
.endproc

172
libsrc/nes/ctype.s Normal file
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;
; Ullrich von Bassewitz, 02.06.1998
;
; Character specification table.
;
; The tables are readonly, put them into the rodata segment
.rodata
; The following 256 byte wide table specifies attributes for the isxxx type
; of functions. Doing it by a table means some overhead in space, but it
; has major advantages:
;
; * It is fast. If it were'nt for the slow parameter passing of cc65, one
; could even define macros for the isxxx functions (this is usually
; done on other platforms).
;
; * It is highly portable. The only unportable part is the table itself,
; all real code goes into the common library.
;
; * We save some code in the isxxx functions.
;
;
; Bit assignments:
;
; 0 - Lower case char
; 1 - Upper case char
; 2 - Numeric digit
; 3 - Hex digit (both, lower and upper)
; 4 - Control character
; 5 - The space character itself
; 6 - Other whitespace (that is: '\f', '\n', '\r', '\t' and '\v')
; 7 - Space or tab character
.export __ctype
__ctype:
.repeat 2 ; 2 times for normal and inverted
.byte $10 ; 0/00 ___ctrl_@___
.byte $10 ; 1/01 ___ctrl_A___
.byte $10 ; 2/02 ___ctrl_B___
.byte $10 ; 3/03 ___ctrl_C___
.byte $10 ; 4/04 ___ctrl_D___
.byte $10 ; 5/05 ___ctrl_E___
.byte $10 ; 6/06 ___ctrl_F___
.byte $10 ; 7/07 ___ctrl_G___
.byte $10 ; 8/08 ___ctrl_H___
.byte $D0 ; 9/09 ___ctrl_I___
.byte $50 ; 10/0a ___ctrl_J___
.byte $50 ; 11/0b ___ctrl_K___
.byte $50 ; 12/0c ___ctrl_L___
.byte $50 ; 13/0d ___ctrl_M___
.byte $10 ; 14/0e ___ctrl_N___
.byte $10 ; 15/0f ___ctrl_O___
.byte $10 ; 16/10 ___ctrl_P___
.byte $10 ; 17/11 ___ctrl_Q___
.byte $10 ; 18/12 ___ctrl_R___
.byte $10 ; 19/13 ___ctrl_S___
.byte $10 ; 20/14 ___ctrl_T___
.byte $10 ; 21/15 ___ctrl_U___
.byte $10 ; 22/16 ___ctrl_V___
.byte $10 ; 23/17 ___ctrl_W___
.byte $10 ; 24/18 ___ctrl_X___
.byte $10 ; 25/19 ___ctrl_Y___
.byte $10 ; 26/1a ___ctrl_Z___
.byte $10 ; 27/1b ___ctrl_[___
.byte $10 ; 28/1c ___ctrl_\___
.byte $10 ; 29/1d ___ctrl_]___
.byte $10 ; 30/1e ___ctrl_^___
.byte $10 ; 31/1f ___ctrl_____
.byte $A0 ; 32/20 ___SPACE___
.byte $00 ; 33/21 _____!_____
.byte $00 ; 34/22 _____"_____
.byte $00 ; 35/23 _____#_____
.byte $00 ; 36/24 _____$_____
.byte $00 ; 37/25 _____%_____
.byte $00 ; 38/26 _____&_____
.byte $00 ; 39/27 _____'_____
.byte $00 ; 40/28 _____(_____
.byte $00 ; 41/29 _____)_____
.byte $00 ; 42/2a _____*_____
.byte $00 ; 43/2b _____+_____
.byte $00 ; 44/2c _____,_____
.byte $00 ; 45/2d _____-_____
.byte $00 ; 46/2e _____._____
.byte $00 ; 47/2f _____/_____
.byte $0C ; 48/30 _____0_____
.byte $0C ; 49/31 _____1_____
.byte $0C ; 50/32 _____2_____
.byte $0C ; 51/33 _____3_____
.byte $0C ; 52/34 _____4_____
.byte $0C ; 53/35 _____5_____
.byte $0C ; 54/36 _____6_____
.byte $0C ; 55/37 _____7_____
.byte $0C ; 56/38 _____8_____
.byte $0C ; 57/39 _____9_____
.byte $00 ; 58/3a _____:_____
.byte $00 ; 59/3b _____;_____
.byte $00 ; 60/3c _____<_____
.byte $00 ; 61/3d _____=_____
.byte $00 ; 62/3e _____>_____
.byte $00 ; 63/3f _____?_____
.byte $00 ; 64/40 _____@_____
.byte $0A ; 65/41 _____A_____
.byte $0A ; 66/42 _____B_____
.byte $0A ; 67/43 _____C_____
.byte $0A ; 68/44 _____D_____
.byte $0A ; 69/45 _____E_____
.byte $0A ; 70/46 _____F_____
.byte $02 ; 71/47 _____G_____
.byte $02 ; 72/48 _____H_____
.byte $02 ; 73/49 _____I_____
.byte $02 ; 74/4a _____J_____
.byte $02 ; 75/4b _____K_____
.byte $02 ; 76/4c _____L_____
.byte $02 ; 77/4d _____M_____
.byte $02 ; 78/4e _____N_____
.byte $02 ; 79/4f _____O_____
.byte $02 ; 80/50 _____P_____
.byte $02 ; 81/51 _____Q_____
.byte $02 ; 82/52 _____R_____
.byte $02 ; 83/53 _____S_____
.byte $02 ; 84/54 _____T_____
.byte $02 ; 85/55 _____U_____
.byte $02 ; 86/56 _____V_____
.byte $02 ; 87/57 _____W_____
.byte $02 ; 88/58 _____X_____
.byte $02 ; 89/59 _____Y_____
.byte $02 ; 90/5a _____Z_____
.byte $00 ; 91/5b _____[_____
.byte $00 ; 92/5c _____\_____
.byte $00 ; 93/5d _____]_____
.byte $00 ; 94/5e _____^_____
.byte $00 ; 95/5f _UNDERLINE_
.byte $00 ; 96/60 ___grave___
.byte $09 ; 97/61 _____a_____
.byte $09 ; 98/62 _____b_____
.byte $09 ; 99/63 _____c_____
.byte $09 ; 100/64 _____d_____
.byte $09 ; 101/65 _____e_____
.byte $09 ; 102/66 _____f_____
.byte $01 ; 103/67 _____g_____
.byte $01 ; 104/68 _____h_____
.byte $01 ; 105/69 _____i_____
.byte $01 ; 106/6a _____j_____
.byte $01 ; 107/6b _____k_____
.byte $01 ; 108/6c _____l_____
.byte $01 ; 109/6d _____m_____
.byte $01 ; 110/6e _____n_____
.byte $01 ; 111/6f _____o_____
.byte $01 ; 112/70 _____p_____
.byte $01 ; 113/71 _____q_____
.byte $01 ; 114/72 _____r_____
.byte $01 ; 115/73 _____s_____
.byte $01 ; 116/74 _____t_____
.byte $01 ; 117/75 _____u_____
.byte $01 ; 118/76 _____v_____
.byte $01 ; 119/77 _____w_____
.byte $01 ; 120/78 _____x_____
.byte $01 ; 121/79 _____y_____
.byte $01 ; 122/7a _____z_____
.byte $00 ; 123/7b _____{_____
.byte $00 ; 124/7c _____|_____
.byte $00 ; 125/7d _____}_____
.byte $00 ; 126/7e _____~_____
.byte $40 ; 127/7f ____DEL____
.endrepeat

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libsrc/nes/cvline.s Normal file
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;
; Ullrich von Bassewitz, 08.08.1998
;
; void cvlinexy (unsigned char x, unsigned char y, unsigned char length);
; void cvline (unsigned char length);
;
.export _cvlinexy, _cvline
.import popa, _gotoxy, putchar, newline
.importzp tmp1
.include "nes.inc"
_cvlinexy:
pha ; Save the length
jsr popa ; Get y
jsr _gotoxy ; Call this one, will pop params
pla ; Restore the length and run into _cvline
_cvline:
cmp #0 ; Is the length zero?
beq L9 ; Jump if done
sta tmp1
L1: lda #CH_VLINE ; Vertical bar
jsr putchar ; Write, no cursor advance
jsr newline ; Advance cursor to next line
dec tmp1
bne L1
L9: rts

12
libsrc/nes/getenv.s Normal file
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@ -0,0 +1,12 @@
;
; Ullrich von Bassewitz, 2003-05-02
;
; char* getenv (const char* name);
;
.export _getenv
.import return0
_getenv = return0 ; "not found"

21
libsrc/nes/gotox.s Normal file
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@ -0,0 +1,21 @@
;
; Ullrich von Bassewitz, 2003-05-02
;
; void gotox (unsigned char x);
;
.export _gotox
.import setcursor
.include "nes.inc"
.proc _gotox
sta CURS_X ; Set new position
tay
ldx CURS_Y
jmp setcursor ; Set the cursor to the new position
.endproc

24
libsrc/nes/gotoxy.s Normal file
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@ -0,0 +1,24 @@
;
; Ullrich von Bassewitz, 06.08.1998
;
; void gotoxy (unsigned char x, unsigned char y);
;
.export _gotoxy
.import setcursor
.import popa
.include "nes.inc"
.proc _gotoxy
sta CURS_Y ; Set Y
jsr popa ; Get X
sta CURS_X ; Set X
tay
ldx CURS_Y
jmp setcursor ; Set the cursor position
.endproc

22
libsrc/nes/gotoy.s Normal file
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@ -0,0 +1,22 @@
;
; Ullrich von Bassewitz, 2003-05-02
;
; void gotoy (unsigned char y);
;
.export _gotoy
.import setcursor
.include "nes.inc"
.proc _gotoy
sta CURS_Y ; Set new position
tax
ldy CURS_X
jmp setcursor ; Set the cursor to the new position
.endproc

21
libsrc/nes/mainargs.s Normal file
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@ -0,0 +1,21 @@
;
; Ullrich von Bassewitz, 2003-03-07
;
; Setup arguments for main
;
.constructor initmainargs, 24
.import __argc, __argv
;---------------------------------------------------------------------------
; Setup arguments for main
.proc initmainargs
rts
.endproc

18
libsrc/nes/randomize.s Normal file
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@ -0,0 +1,18 @@
;
; Ullrich von Bassewitz, 2003-05-02
;
; void _randomize (void);
; /* Initialize the random number generator */
;
.export __randomize
.import _srand
.include "nes.inc"
__randomize:
ldx tickcount ; Use tick clock
lda tickcount+1
jmp _srand ; Initialize generator

27
libsrc/nes/revers.s Normal file
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@ -0,0 +1,27 @@
;
; Ullrich von Bassewitz, 07.08.1998
;
; unsigned char revers (unsigned char onoff);
;
.export _revers
.include "nes.inc"
.proc _revers
ldx #$00 ; Assume revers off
tay ; Test onoff
beq L1 ; Jump if off
ldx #$80 ; Load on value
ldy #$00 ; Assume old value is zero
L1: lda RVS ; Load old value
stx RVS ; Set new value
beq L2 ; Jump if old value zero
iny ; Make old value = 1
L2: ldx #$00 ; Load high byte of result
tya ; Load low byte, set CC
rts
.endproc

19
libsrc/nes/wherex.s Normal file
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@ -0,0 +1,19 @@
;
; Ullrich von Bassewitz, 2003-05-02
;
; unsigned char wherex (void);
;
.export _wherex
.include "nes.inc"
.proc _wherex
lda CURS_X
ldx #$00
rts
.endproc

19
libsrc/nes/wherey.s Normal file
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;
; Ullrich von Bassewitz, 2003-05-02
;
; unsigned char wherey (void);
;
.export _wherey
.include "nes.inc"
.proc _wherey
lda CURS_Y
ldx #$00
rts
.endproc