mirror of
https://github.com/cc65/cc65.git
synced 2024-06-01 13:41:34 +00:00
Access routines for different eeprom types. By Karri Kaksonen.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4994 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz
parent
5e37ed1a16
commit
cc3424a545
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@ -120,6 +120,12 @@ unsigned __fastcall__ lynx_eeprom_write (unsigned char cell, unsigned val);
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void __fastcall__ lynx_eeprom_erase (unsigned char cell);
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/* Clear the word at the given address */
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unsigned __fastcall__ lynx_eeread (unsigned cell);
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/* Read a 16 bit word from the given address 93C46 93C66 or 93C86*/
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unsigned __fastcall__ lynx_eewrite (unsigned cell, unsigned val);
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/* Write the word at the given address 93C46 93C66 or 93C86*/
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/*****************************************************************************/
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@ -138,6 +144,39 @@ void __fastcall__ lynx_eeprom_erase (unsigned char cell);
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/*****************************************************************************/
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/* Sprites */
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/*****************************************************************************/
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#define SPRCTL0_1_bit_per_pixel 0
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#define SPRCTL0_2_bits_per_pixel 0x40
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#define SPRCTL0_3_bits_per_pixel 0x80
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#define SPRCTL0_4_bits_per_pixel 0xc0
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#define SPRCTL0_h_flip 0x20
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#define SPRCTL0_v_flip 0x10
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#define SPRCTL0_shadow 7
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#define SPRCTL0_xor_shadow 6
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#define SPRCTL0_non_collide 5
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#define SPRCTL0_normal 4
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#define SPRCTL0_boundary 3
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#define SPRCTL0_boundary_shadow 2
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#define SPRCTL0_background_no_coll 1
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#define SPRCTL0_background_shadow 0
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#define SPRCTL1_literal 0x80
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#define SPRCTL1_hsize_vsize_strech_tilt 0x30
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#define SPRCTL1_hsize_vsize_strech 0x20
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#define SPRCTL1_hsize_vsize 0x10
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#define SPRCTL1_no_palette 0x08
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#define SPRCTL1_skip_sprite 0x04
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#define SPRCTL1_start_drawing_up 0x02
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#define SPRCTL1_start_drawing_left 0x01
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#define SPRCOLL_dont_collide 0x20
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#define SPRCOLL_number_0_3 0x00
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/* End of lynx.h */
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#endif
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@ -51,6 +51,9 @@ OBJS = bllhdr.o \
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ctype.o \
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defdir.o \
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eeprom.o \
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eeprom46.o \
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eeprom66.o \
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eeprom86.o \
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exec.o \
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exehdr.o \
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extzp.o \
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204
libsrc/lynx/eeprom46.s
Normal file
204
libsrc/lynx/eeprom46.s
Normal file
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@ -0,0 +1,204 @@
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;***************
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; EEPROM-routines
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; for 93C46 (128 bytes as 64 16-bit words)
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;
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; created : 11.05.95
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; last modified :
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;
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; 16.02.96 leaner (thanks to Harry)
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; 12.03.96 test for busy after write and erase (well, Harry ;)) )
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; 22.08.97 ported to ra65 for use with cc65
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; 02.12.97 added xref for the new ra65
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;
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;
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; (c) 1995..97 Bastian Schick
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; CS = A7 (18)
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; CLK = A1 (11)
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; DI/DO = AUDIN (32)
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;
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;And now how to contact the EEPROM :
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;
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;CARD
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;PORT ----\/---- 93C46(SMD too)
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;(18) A7 --------| CS |- +5V
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;(11) A1 --------| CLK |- NC
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; +---| DI |- NC
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;(32) AUDIN ----+---| DO |- GND
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; ----------
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.export _lynx_eeread_93c46
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.export _lynx_eewrite_93c46
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.import popax
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.importzp ptr1
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.include "lynx.inc"
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; -------------------
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; EEPROM command list
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EE_C_WRITE = $40
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EE_C_READ = $80
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EE_C_ERASE = $C0
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EE_C_EWEN = $30
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EE_C_EWDS = $00
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; ------------------------------------------------------------------------
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; unsigned __fastcall__ lynx_eeread_93c46(unsigned char cell);
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; /* Read a 16 bit word from the given address */
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;
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_lynx_eeread_93c46:
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and #$3f
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ora #EE_C_READ
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jsr EE_Send9Bit
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jsr EE_Read16Bit
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lda ptr1
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ldx ptr1+1
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rts
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;***************
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; reads EEPROM-word to ptr1
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; A,Y destroyed
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EE_Read16Bit:
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lda #$a
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sta IODIR ; set AUDIN to Input
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clc
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stz ptr1
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stz ptr1+1
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ldy #15
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EEloop1:
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; CLK = 1
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stz RCART0
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stz RCART0
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; CLK = 0
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stz RCART0
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stz RCART0
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lda IODAT
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and #$10 ; mask bit
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adc #$f0 ; C=1 if A=$10
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rol ptr1
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rol ptr1+1 ; shifts 0 to Carry
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dey
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bpl EEloop1
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ldx #$1a
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stx IODIR ; set AUDIN for output
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;EE_SET_CS_LOW
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ldx #3
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stx SYSCTL1
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dex
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stx SYSCTL1
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rts
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;***************
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; write word to EEPROM
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; void __fastcall__ lynx_eewrite_93c46(unsigned int addr, unsigned int val);
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_lynx_eewrite_93c46:
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sta ptr1
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stx ptr1+1
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lda #EE_C_EWEN
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jsr EE_Send9Bit
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jsr popax
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and #$3f
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ora #EE_C_WRITE
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jsr EE_Send9Bit
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jsr EE_Send16Bit ; Sends ptr1 that contains val
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EE_wait:
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; EE_SET_CS_HIGH
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ldx #63
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EEloop:
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stz RCART0
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stz RCART0
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dex
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bpl EEloop
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lda #$0A
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sta IODIR ; AUDIN to input
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lda #$10
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EE_wait1:
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bit IODAT ; 'til ready :D0-read is /D0-written
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beq EE_wait1
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lda #$1a ; AUDIN to output
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sta IODIR
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lda #EE_C_EWDS
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; bra EE_Send9Bit ; fall into
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;***************
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; send A via I2C
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; A,Y destroyed
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;***************
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EE_Send9Bit:
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; EE_SET_CS_LOW
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ldy #3
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sty SYSCTL1
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dey
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sty SYSCTL1
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; EE_SET_CS_HIGH
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ldy #63
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EEloop2:
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stz RCART0
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stz RCART0
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dey
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bpl EEloop2
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ldy #8
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sec ; start bit
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ror A
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ror A
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ror A
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ror A ; bit 8 at pos. 4
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EEloop3:
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tax
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and #$10
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ora #$b
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sta IODAT
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; CLK = 1
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stz RCART0
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stz RCART0
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; CLK = 0
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stz RCART0
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stz RCART0
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txa
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rol A
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dey
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bpl EEloop3
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rts
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;***************
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; send ptr1 to EEPROM
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EE_Send16Bit:
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lda ptr1+1
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ror A
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ror ptr1
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ror A
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ror ptr1
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ror A
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ror ptr1
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ldy #15
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EEloop5:
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tax
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and #$10
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ora #$b
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sta IODAT
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; CLK = 1
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stz RCART0
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stz RCART0
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; CLK = 0
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stz RCART0
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stz RCART0
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txa
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rol ptr1
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rol A
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dey
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bpl EEloop5
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; EE_SET_CS_LOW
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ldx #3
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stx SYSCTL1
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dex
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stx SYSCTL1
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rts
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227
libsrc/lynx/eeprom66.s
Normal file
227
libsrc/lynx/eeprom66.s
Normal file
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@ -0,0 +1,227 @@
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;***************
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; EEPROM-routines
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; for 93C66 (512 bytes as 256 16-bit words)
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;
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; created : 11.05.95
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; last modified :
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;
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; 16.02.96 leaner (thanks to Harry)
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; 12.03.96 test for busy after write and erase (well, Harry ;)) )
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; 22.08.97 ported to ra65 for use with cc65
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; 02.12.97 added xref for the new ra65
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; 2010 93c66 support B. Spruck
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; 2011 modified to suit cc65 environment Karri Kaksonen
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;
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; (c) 1995..97 Bastian Schick
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; CS = A7 (18)
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; CLK = A1 (11)
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; DI/DO = AUDIN (32)
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;
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;And now how to contact the EEPROM :
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;
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;CARD
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;PORT ----\/---- 93C66(SMD too)
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;(18) A7 --------| CS |- +5V
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;(11) A1 --------| CLK |- NC
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; +---| DI |- NC
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;(32) AUDIN ----+---| DO |- GND
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; ----------
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.export _lynx_eeread_93c66
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.export _lynx_eewrite_93c66
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.import popax
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.importzp ptr1
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.include "lynx.inc"
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; -------------------
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; EEPROM command list
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EE_C_WRITE = $14
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EE_C_READ = $18
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EE_C_ERASE = $1C
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EE_C_EWEN = $13
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EE_C_EWEN2 = $FF ;; C0 schould be enough
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EE_C_EWDS = $10
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EE_C_EWDS2 = $00
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;**************
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; Only lower byte in A is used for address
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; unsigned int __fastcall__ lynx_eeread_93c66(unsigned int addr);
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_lynx_eeread_93c66:
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ldx #EE_C_READ
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jsr EE_Send11Bit
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jsr EE_Read16Bit
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lda ptr1
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ldx ptr1+1
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rts
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;***************
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; reads EEPROM-word to ptr1
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; A,Y destroyed
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EE_Read16Bit:
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lda #$a
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sta IODIR ; set AUDIN to Input
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clc
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stz ptr1
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stz ptr1+1
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ldy #15
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EEloop1:
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; CLK = 1
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stz RCART0
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stz RCART0
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; CLK = 0
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stz RCART0
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stz RCART0
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lda IODAT
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and #$10 ; mask bit
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adc #$f0 ; C=1 if A=$10
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rol ptr1
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rol ptr1+1 ; shifts 0 to Carry
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dey
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bpl EEloop1
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ldx #$1a
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stx IODIR ; set AUDIN for output
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;EE_SET_CS_LOW
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ldx #3
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stx SYSCTL1
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dex
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stx SYSCTL1
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rts
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;***************
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; write word to EEPROM
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; void __fastcall__ lynx_eewrite_93c66(unsigned int addr, unsigned int val);
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_lynx_eewrite_93c66:
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sta ptr1
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stx ptr1+1
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ldx #EE_C_EWEN
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lda #EE_C_EWEN2
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jsr EE_Send11Bit
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jsr popax
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ldx #EE_C_WRITE
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jsr EE_Send11Bit
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jsr EE_Send16Bit ; Sends ptr1 that contains val
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EE_wait:
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; EE_SET_CS_HIGH
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ldx #63
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EEloop:
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stz RCART0
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stz RCART0
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dex
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bpl EEloop
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lda #$0A
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sta IODIR ; AUDIN to input
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lda #$10
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EE_wait1:
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bit IODAT ; 'til ready :D0-read is /D0-written
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beq EE_wait1
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lda #$1a ; AUDIN to output
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sta IODIR
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ldx #EE_C_EWDS
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lda #EE_C_EWDS2
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; bra EE_Send11Bit ; fall into
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;***************
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; send A via I2C
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; A,Y destroyed
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EE_Send11Bit:
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; EE_SET_CS_LOW
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ldy #3
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sty SYSCTL1
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dey
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sty SYSCTL1
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; EE_SET_CS_HIGH
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ldy #63
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EEloop2:
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stz RCART0
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stz RCART0
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dey
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bpl EEloop2
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pha
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txa ;; Ok erstmal x abarbeiten und A sichern
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ldy #2 ; 3 times
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EEloop3:
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tax
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and #$10
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ora #$b
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sta IODAT
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; CLK = 1
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stz RCART0
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stz RCART0
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; CLK = 0
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stz RCART0
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stz RCART0
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txa
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rol A
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dey
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bpl EEloop3
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ldy #7 ; 8 times
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pla ;; jetzt kommt a an die reihe
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ror A
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ror A
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ror A ; bit 7 at pos. 4
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EEloop4:
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tax
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and #$10
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ora #$b
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sta IODAT
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; CLK = 1
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stz RCART0
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stz RCART0
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; CLK = 0
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stz RCART0
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stz RCART0
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txa
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rol A
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dey
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bpl EEloop4
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rts
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;***************
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; send ptr1 to EEPROM
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EE_Send16Bit:
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lda ptr1+1
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ror A
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ror ptr1
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ror A
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ror ptr1
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ror A
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ror ptr1
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ldy #15
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EEloop5:
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tax
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and #$10
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ora #$b
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sta IODAT
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; CLK = 1
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stz RCART0
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stz RCART0
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; CLK = 0
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stz RCART0
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stz RCART0
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txa
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rol ptr1
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rol A
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dey
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bpl EEloop5
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; EE_SET_CS_LOW
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ldx #3
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stx SYSCTL1
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dex
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stx SYSCTL1
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rts
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236
libsrc/lynx/eeprom86.s
Normal file
236
libsrc/lynx/eeprom86.s
Normal file
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@ -0,0 +1,236 @@
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;***************
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; EEPROM-routs
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; for 93C86 (2048 bytes as 1024 16-bit words)
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;
|
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; created : 11.05.95
|
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; last modified :
|
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;
|
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; 16.02.96 leaner (thanks to Harry)
|
||||
; 12.03.96 test for busy after write and erase (well, Harry ;)) )
|
||||
; 22.08.97 ported to ra65 for use with cc65
|
||||
; 02.12.97 added xref for the new ra65
|
||||
; 2010 93c66 support B. Spruck
|
||||
; 2010 93c86 support B. Spruck
|
||||
; 2011 modified to suit cc65 environment Karri Kaksonen
|
||||
;
|
||||
; (c) 1995..97 Bastian Schick
|
||||
; CS = A7 (18)
|
||||
; CLK = A1 (11)
|
||||
; DI/DO = AUDIN (32)
|
||||
;
|
||||
;And now how to contact the EEPROM :
|
||||
;
|
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;CARD
|
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;PORT ----\/---- 93C86(SMD too)
|
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;(18) A7 --------| CS |- +5V
|
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;(11) A1 --------| CLK |- NC
|
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; +---| DI |- NC
|
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;(32) AUDIN ----+---| DO |- GND
|
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; ----------
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|
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.export _lynx_eeread_93c86
|
||||
.export _lynx_eewrite_93c86
|
||||
.import popax
|
||||
.importzp ptr1
|
||||
|
||||
.include "lynx.inc"
|
||||
|
||||
; -------------------
|
||||
; EEPROM command list
|
||||
EE_C_WRITE = $14
|
||||
EE_C_READ = $18
|
||||
EE_C_ERASE = $1C
|
||||
EE_C_EWEN = $13
|
||||
EE_C_EWEN2 = $FF ;; C0 schould be enough
|
||||
EE_C_EWDS = $10
|
||||
EE_C_EWDS2 = $00
|
||||
|
||||
;**************
|
||||
; Only lower byte in A is used for address
|
||||
; unsigned int __fastcall__ lynx_eeread_93c86(unsigned int addr);
|
||||
_lynx_eeread_93c86:
|
||||
pha
|
||||
txa
|
||||
ora #EE_C_READ
|
||||
tax
|
||||
pla
|
||||
jsr EE_Send13Bit
|
||||
jsr EE_Read16Bit
|
||||
lda ptr1
|
||||
ldx ptr1+1
|
||||
rts
|
||||
|
||||
;***************
|
||||
; reads EEPROM-word to ptr1
|
||||
; A,Y destroyed
|
||||
EE_Read16Bit:
|
||||
lda #$a
|
||||
sta IODIR ; set AUDIN to Input
|
||||
clc
|
||||
stz ptr1
|
||||
stz ptr1+1
|
||||
ldy #15
|
||||
EEloop1:
|
||||
; CLK = 1
|
||||
stz RCART0
|
||||
stz RCART0
|
||||
; CLK = 0
|
||||
stz RCART0
|
||||
stz RCART0
|
||||
|
||||
lda IODAT
|
||||
and #$10 ; mask bit
|
||||
adc #$f0 ; C=1 if A=$10
|
||||
rol ptr1
|
||||
rol ptr1+1 ; shifts 0 to Carry
|
||||
dey
|
||||
bpl EEloop1
|
||||
|
||||
ldx #$1a
|
||||
stx IODIR ; set AUDIN for output
|
||||
;EE_SET_CS_LOW
|
||||
|
||||
ldx #3
|
||||
stx SYSCTL1
|
||||
dex
|
||||
stx SYSCTL1
|
||||
|
||||
rts
|
||||
|
||||
;***************
|
||||
; write word to EEPROM
|
||||
; void __fastcall__ lynx_eewrite_93c86(unsigned int addr, unsigned int val);
|
||||
_lynx_eewrite_93c86:
|
||||
sta ptr1
|
||||
stx ptr1+1
|
||||
ldx #EE_C_EWEN
|
||||
lda #EE_C_EWEN2
|
||||
jsr EE_Send13Bit
|
||||
jsr popax
|
||||
pha
|
||||
txa
|
||||
ora #EE_C_WRITE
|
||||
tax
|
||||
pla
|
||||
jsr EE_Send13Bit
|
||||
jsr EE_Send16Bit ; Sends ptr1 that contains val
|
||||
|
||||
EE_wait:
|
||||
; EE_SET_CS_HIGH
|
||||
|
||||
ldx #63
|
||||
EEloop:
|
||||
stz RCART0
|
||||
stz RCART0
|
||||
dex
|
||||
bpl EEloop
|
||||
|
||||
lda #$0A
|
||||
sta IODIR ; AUDIN to input
|
||||
lda #$10
|
||||
EE_wait1:
|
||||
bit IODAT ; 'til ready :D0-read is /D0-written
|
||||
beq EE_wait1
|
||||
lda #$1a ; AUDIN to output
|
||||
sta IODIR
|
||||
ldx #EE_C_EWDS
|
||||
lda #EE_C_EWDS2
|
||||
; bra EE_Send13Bit ; fall into
|
||||
;***************
|
||||
; send A via I2C
|
||||
; A,Y destroyed
|
||||
EE_Send13Bit:
|
||||
; EE_SET_CS_LOW
|
||||
ldy #3
|
||||
sty SYSCTL1
|
||||
dey
|
||||
sty SYSCTL1
|
||||
; EE_SET_CS_HIGH
|
||||
|
||||
ldy #63
|
||||
EEloop2:
|
||||
stz RCART0
|
||||
stz RCART0
|
||||
dey
|
||||
bpl EEloop2
|
||||
|
||||
pha
|
||||
txa ;; Ok erstmal x abarbeiten und A sichern
|
||||
ldy #4 ; 5 times
|
||||
EEloop3:
|
||||
tax
|
||||
and #$10
|
||||
ora #$b
|
||||
sta IODAT
|
||||
; CLK = 1
|
||||
stz RCART0
|
||||
stz RCART0
|
||||
; CLK = 0
|
||||
stz RCART0
|
||||
stz RCART0
|
||||
txa
|
||||
rol A
|
||||
dey
|
||||
bpl EEloop3
|
||||
|
||||
ldy #7 ; 8 times
|
||||
pla ;; jetzt kommt a an die reihe
|
||||
|
||||
ror A
|
||||
ror A
|
||||
ror A ; bit 7 at pos. 4
|
||||
EEloop4:
|
||||
tax
|
||||
and #$10
|
||||
|
||||
ora #$b
|
||||
sta IODAT
|
||||
; CLK = 1
|
||||
stz RCART0
|
||||
stz RCART0
|
||||
; CLK = 0
|
||||
stz RCART0
|
||||
stz RCART0
|
||||
txa
|
||||
rol A
|
||||
dey
|
||||
bpl EEloop4
|
||||
rts
|
||||
|
||||
;***************
|
||||
; send ptr1 to EEPROM
|
||||
EE_Send16Bit:
|
||||
lda ptr1+1
|
||||
|
||||
ror A
|
||||
ror ptr1
|
||||
ror A
|
||||
ror ptr1
|
||||
ror A
|
||||
ror ptr1
|
||||
|
||||
ldy #15
|
||||
EEloop5:
|
||||
tax
|
||||
and #$10
|
||||
ora #$b
|
||||
sta IODAT
|
||||
; CLK = 1
|
||||
stz RCART0
|
||||
stz RCART0
|
||||
; CLK = 0
|
||||
stz RCART0
|
||||
stz RCART0
|
||||
txa
|
||||
rol ptr1
|
||||
rol A
|
||||
dey
|
||||
bpl EEloop5
|
||||
|
||||
; EE_SET_CS_LOW
|
||||
ldx #3
|
||||
stx SYSCTL1
|
||||
dex
|
||||
stx SYSCTL1
|
||||
rts
|
||||
|
||||
Loading…
Reference in New Issue
Block a user