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AS65 Assembler for R6502 [1.42]. Copyright 1994-2007, Frank A. Kingswood Page 1
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--------------------------------------------------------- m65c02_tst5.a65 ---------------------------------------------------------
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---------------------------------------------------------- Symbol Table -----------------------------------------------------------
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Symbol Value Decimal
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BROM_Start : $f800 63488
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Delay_Loop : $f807 63495
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Delay_Lp1 : $f80b 63499
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Delay_Lp2 : $f80f 63503
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Last_Addrs : $f820 63520
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SPI_CR : $f7ff 63487
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Start : $f800 63488
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ZP_Cntr_Hi : $00ff 255
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ZP_Cntr_Lo : $00fe 254
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ZP_LED_Cntr : $00fd 253
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__65SC02__ : $0001 1
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11 labels used
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59 lines read, no errors in pass 1.
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AS65 Assembler for R6502 [1.42]. Copyright 1994-2007, Frank A. Kingswood Page 2
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--------------------------------------------------------- m65c02_tst5.a65 ---------------------------------------------------------
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f800 = BROM_Start equ $F800
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f7ff = SPI_CR equ $F7FF
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00fd = ZP_LED_Cntr equ $00FD
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00fe = ZP_Cntr_Lo equ $00FE
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00ff = ZP_Cntr_Hi equ $00FF
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bss
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;;
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0000 = Zero_Page: org $0000
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;;
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0100 = Stack_Page: org $0100
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;;
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0200 = RAM_Start: org $0200
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;;
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code
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f800 = org BROM_Start
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;;
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f800 : a900 [ 2] Start: lda #$00 ;; load initial value to control register
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f802 : 85fd [ 3] sta ZP_LED_Cntr
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f804 : 8dfff7 [ 4] sta SPI_CR ;; update LEDs
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;;
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f807 : a004 [ 2] Delay_Loop: ldy #$04 ;; load outer delay loop counter
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f809 : 84ff [ 3] sty ZP_Cntr_Hi
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;;
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f80b : a200 [ 2] Delay_Lp1: ldx #$00 ;; load inner delay loop counter
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f80d : 86fe [ 3] stx ZP_Cntr_Lo
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;;
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;Delay_Lp2: dex ;; decrement inner loop counter
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f80f : c6fe [ 5] Delay_Lp2: dec ZP_Cntr_Lo ;; decrement inner loop counter
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f811 : d0fc [ 3] bne Delay_Lp2 ;; loop until inner loop counter is zero
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;;
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; dey ;; decrement external loop counter
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f813 : c6ff [ 5] dec ZP_Cntr_Hi
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f815 : d0f4 [ 3] bne Delay_Lp1 ;; loop until outer loop counter is zero
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;;
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; dec a ;; decrement accumulator
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f817 : c6fd [ 5] dec ZP_LED_Cntr
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f819 : a5fd [ 3] lda ZP_LED_Cntr
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f81b : 8dfff7 [ 4] sta SPI_CR ;; update LEDs
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f81e : 80e7 [ 3] bra Delay_Loop ;; Loop Continously
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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f820 : Last_Addrs:
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;; Vector Table
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;;
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fffa = Vect_Table: org $FFFA
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;;
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fffa : 00f8 dw Start ;; NMI Interrupt Vector
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AS65 Assembler for R6502 [1.42]. Copyright 1994-2007, Frank A. Kingswood Page 3
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--------------------------------------------------------- m65c02_tst5.a65 ---------------------------------------------------------
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fffc : 00f8 dw Start ;; Reset Vector
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fffe : 00f8 dw Start ;; IRQ/BRK Interrupt Vector
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;;
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fffa = end Start
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No errors in pass 2.
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Wrote binary from address $f800 through $ffff.
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Total size 2048 bytes.
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Program start address is at $f800 (63488).
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