/[projet1]/public/oric/demos/SlideShowDemo/code/sector_1-jasmin.asm
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revision 1047 by dbug, Sun Dec 22 11:02:56 2013 UTC revision 1048 by dbug, Sun Dec 22 12:33:21 2013 UTC
# Line 34  retry_counter          .dsb 1  ; Number of attemp Line 34  retry_counter          .dsb 1  ; Number of attemp
34          .byt $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20          .byt $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20
35          .byt $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20          .byt $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20
36    
37    ; FDC_flags
38    ;#define FDC_flags                              $0314  
39    ;                                                                               |xxxxxxxx| Write
40    ;                                        ||||||||
41    ;                                        ||||||||_____bit 0: enable FDC INTRQ to appear on read location $0314 and to drive cpu IRQ
42    ;                                        |||||||_____ bit 1: ROMDIS (active low). When 0, internal Basic rom is disabled.
43    ;                                        ||||||______ bit 2: along with bit 3, selects the data separator clock divisor            (1: double density, 0: single-density)
44    ;                                        |||||_______ bit 3: double density enable (0: double density, 1: single density)
45    ;                                        ||||________ bit 4: side select
46    ;                                        |||_________ bits 56: drive select (0 to 3)
47    ;                                        |___________ bit 7: Eprom select (active low)
48    ;
49    ;                                        %10000101 -> Eprom deselected, double density, ROM disabled, irq enabled
50    ;                                        %10000001 ->
51    
52  JasminStart  JasminStart
53          ;jmp JasminStart          ;jmp JasminStart
54          ;          ;
# Line 51  JasminStart Line 66  JasminStart
66          lda #1          lda #1
67          sta $03FB ; Disable ROM          sta $03FB ; Disable ROM
68    
69    
70          ;          ;
71          ; Read sector data          ; Read sector data
72          ;          ;

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