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b43fd07688
My original goal was to add a sign-extended decimal format, but that turned out to be awkward. It works for data items and instructions with immediate operands (e.g. "LDA #-1"), but is either wrong or useless for address operands, since most assemblers treat integers as 32-bit values. (LDA -1 is not LDA $FFFF, it's LDA $FFFFFFFF, which is not useful unless your asm is doing an implicit mod.) There's also a bit of variability in how assemblers treat negative values, so I'm shelving the idea for now. I'm keeping the updated tests, which are now split into 6502 / 65816 parts. Also, updated the formatter to output all decimal values as unsigned. Most assemblers were fine with negative values, but 64tass .dword insists on positive. Rather than make the opcode conditional on the value's range, we now just always output unsigned decimal, which all current assemblers accept.
41 lines
761 B
ArmAsm
41 lines
761 B
ArmAsm
; Copyright 2018 faddenSoft. All Rights Reserved.
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; See the LICENSE.txt file for distribution terms (Apache 2.0).
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;
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; Extended tests for 65816.
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;
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; Assembler: Merlin 32
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org $1000
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; 65816 with long regs
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clc
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xce
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rep #$30
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mx %00
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; hex/dec/sdec/bin
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lda #$1234
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lda #$1234
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lda #$1234
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lda #$1234
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lda #$fffe
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lda #$fffe
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lda #$fffe
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lda #$fffe
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ldal $fffefd
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ldal $fffefd
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ldal $fffefd
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ldal $fffefd
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; ASCII
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lda #$0068 ;'h'
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lda #$00c8 ;"h"
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lda #$6868
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ldal $000068 ;'h'
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ldal $0000c8 ;"h"
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rts
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