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8d291ba21e
The Absolute Indirect and Absolute Indirect Long addressing modes (e.g. "JMP (addr)" and "JMP [addr]") are 16-bit values in bank 0. The code analyzer was placing them in the program bank, which meant the wrong symbol was being used. Also, tweak some docs.
124 lines
2.2 KiB
ArmAsm
124 lines
2.2 KiB
ArmAsm
.cpu "65816"
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zero = $00
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longsym = $123456
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* = $1000
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.as
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.xs
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clc
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xce
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sep #$30
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jml L440000
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lodat .byte $00
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.byte $01
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.byte $02
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.logical $440000
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L440000 cmp L440000
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L440004 lda L440000
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lda @wL440000 & $ffff
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lda zero
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bmi L440004
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per high44
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bne high44
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brl L44FFC0
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dat44 .word dat44 & $ffff
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.long dat44
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.here
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.logical $44ffc0
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L44FFC0 cmp L44FFC0
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high44 beq _L44FFCB
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bmi L440004
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brl L440004
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_L44FFCB jml _L2000
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.here
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.logical $2000
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_L2000 bit _L2000
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pea dat44 & $ffff
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pea dat44 >> 16
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bne skip
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jml [lodat]
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skip nop
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jsr j2
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j2 jsr j2+3
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jsr j2-3
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jsl longsym
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jml bank54
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.here
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.logical $543210
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bank54 cmp bank54
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bra L54321C
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backchk nop
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nop
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rts
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backval .long backchk
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L54321C lda backchk
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lda fwdchk
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lda $543216
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lda $54327d
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lda 0+(backchk & $ffff)+1
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lda 0+(backchk & $ffff)-1
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lda 0+(fwdchk & $ffff)+1
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lda 0+(fwdval & $ffff)+2
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nop
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jsr backchk
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jsr backchk+1
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jsr $543218
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jsr fwdchk
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jsr fwdchk+1
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jsr $54327f
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nop
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ldx #$00
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jsr (backval,x)
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jsr (fwdval,x)
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jsr _L54326E
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jsr _L543271
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jsr _L543268
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jsr _L54326B
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jsr _L543274
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jsr _L543277
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bra L543280
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_L543268 jmp (backval,x)
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_L54326B jmp (fwdval,x)
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_L54326E jmp (lodat)
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_L543271 jmp (lodat)
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_L543274 jml [lodat]
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_L543277 jml [lodat]
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fwdval .long fwdchk
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fwdchk nop
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nop
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rts
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L543280 jsr skip+$540000
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nop
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phk
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plb
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lda $544280
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jsl $544280
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nop
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lda $4280
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jsr $544280
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jsr ($544280,x)
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nop
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rtl
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.here
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