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;; ;; This file verifies the compliance with the Motorola specification: ;; ;; MOTOROLA STANDARDS ;; Document #1001, Version 1.0 ;; SPECIFICATION FOR Motorola 8- and 16-Bit ASSEMBLY LANGUAGE INPUT STANDARD ;; 26, October 1999 ;; ;; Available at: ;; ;; http://www.mcu.motsps.com/dev_tools/hc12/eabi/m8-16alis.pdf ;; ;; Lines starting with '#' represent instructions that fail in GAS. ;; ;; ;; Section 8.2 INPUTS ;; Validated within the whole file ;; Section 8.2.1 Character Set ;; TBD ;; Section 8.2.2 Assembly Language Statement ;; Validated within the whole file ;; Section 8.2.3 Comments ; Motorola comment ;; This file is full of comments ;; Section 8.2.5 Location Counter section .text _start: L0: * ; L0 set to 0 (relative to text) ldaa 1,x L1: equ * ; L1 set to 2 (relative to text) ;; Section 8.2.6 Sections section .data section .text section empty section .text ;; Section 8.2.7 Expressions L2: equ 23 ; Absolute = 0x17 L3: equ L0-23 ; Simple relocatable ;; Section 8.2.7.1 Primary Expression L4: equ 45 ; Numeric = 0x2d L5: equ L0 ; Symbolic ;; Section 8.2.7.2 Absolute Expression L_txt: ldaa #44 L_txt2: L6: equ -L4 ; unary expr 0xffffffd3 L7: equ L6+1000 ; binary expr 0x03bb L8: equ L6-12 ; 0xffffffc7 L9: equ L_txt2-L_txt ; reloc - reloc 2 = sizeof(ldaa #44) ;; Section 8.2.7.3 Simple Relocatable Expressions L10: equ _start ; symbol 0 + text L11: equ L10+23 ; reloc+abs 0x17 + text L12: equ L11-4 ; reloc-abs 0x13 + text L13: equ L12+L9 ; reloc+abs 0x15 + text ;; Section 8.2.8 Symbols section .text Text_Symbol: ldx #Data_Symbol section .data Data_Symbol: ;; Section 8.2.8.1 Labels L_label_shall_be_significant_to_at_least_32_chars: dc.b 1 L_label_lower: ; Labels are case sensitive dc.b 2 L_Label_Lower: dc.b 3 ;; Section 8.2.9 Constants ; ; Section 8.2.9.1 Decimal Constants section .text L_constant: ldaa #123 ; -> ldaa #0x7b ldaa #-23 ; -> ldaa #0xe9 ;; Section 8.2.9.2 Binary Constants ldab #%10001010 ; -> ldab #0x8A ldab #%0111 ; -> ldab #0x07 ;; Section 8.2.9.3 Octal Constants ldaa #@74 ; -> ldaa 0x3c ldaa #@377 ; -> ldaa 0xff ;; Section 8.2.9.4 Hexadecimal Constants ldaa #$ae ; -> ldaa 0xae ldaa #$B2 ; -> ldaa 0xb2 ;; Section 8.2.9.5 String Constants section .data # ascii '"Single quote string"' ascii "'Double quote string'" ;; Section 8.2.9.6 Floating Point Constants ;; No specification L_float: float 3.241592e-2 ;; Section 8.2.10 Operators section .text L_operator: ldx #(((1<<3)&(1<<3)|2)<<4)+(4*4-1) ldx #(L2>=23)&1-(L2<=23)&1+(L2==23)&1 ; -> ldx #1 ldx #(L2>23)&1-(L2<23)&1+(L2==23)&1 ; -> ldx #0 ldx #1-1+1-1+1-1 ldab #~L4 ; -> ldab #0xd2 # ldab #<_start ; force to 8-bit # ldx #>_start ; force to 16-bit # ldab #page(_start) ; 68HC12 page number of symbol ;; Section 8.2.11 Instructions ;; Defined by other tests ;; Section 8.2.12 Assembler Directives ;; ;; Section 8.2.12.1 Conditional Directives ;; # The specification says we are allowed to have spaces in expressions. # This does not work with GAS in mri mode, the instruction 'if L2 < 24' # is in fact treated as 'if L2'. L_if: if L2<24 ; true ldx #1 ; -> ldx #1 else ldx #2 endif if L2<23||L2>23||L2==22+1 ; true if L2<23 ; false ldaa #0 endif if L2>23 ; false ldaa #1 endif if L2 == 23 ; true ldaa #L2+8 ; -> ldaa #31 endif if L2+2<23+2 ; false if L2+4>23+4 ldaa #1 elseif L2==23 ldaa #2 else ldaa #3 endif elseif L2==23 ; true ldaa #4 ; -> ldaa #4 else ldaa #5 endif endif ifdef L1 ; true ldx #23 ; -> ldx #0x17 endif ifndef L_undef ; true ldx #4 ; -> ldx #4 endif ;; Section 8.2.12.2 Define Constant -dc section .data L_const_data: dc.b (1<<3)|2 ; 0x0a dc.w (1<<9)+2 ; 0x02 0x02 dc.l $12345678 dc.b 10 dc.l (1<<9)*(3<<12) # dc.b "Hello" # dc.w "World" # dc.l "!!!" ;; Section 8.2.12.3 Define Constant Block -dcb dcb.b 3,2 dcb.w 2,$55AA dcb.l 2,$12345678 dcb.b 10,2 dcb.w 5,$55AA dcb.l 2,$12345678 # dcb.b 4, 12 ; Fails in GAS due to space ;; Section 8.2.12.4 Define Storage - ds ds.b 4 ds.w 2 ds.l 1 ds 2 ;; Section 8.2.12.5 Equate Symbol Value - equ L_equ1: equ (1<<8)+3 L_equ2: equ L_equ1*3 L_equ3: equ L_equ2-L_equ1 ;; Section 8.2.12.6 Include File - include # include 'malis-include.s' # include "malis-include.s" include malis-include.s include malis-include.s ;; Section 8.2.12.7 Origin - org section .text # org $100 ldaa #23 # org $200 staa 24 # org $0 rts ;; Section 8.2.12.8 Define Section - section section .text ldaa 23 section .data dc.b 23 ;; Section 8.2.12.9 Set Value of Symbol - set s1: set 3 s1: set 4 s2: set s1+2 s3: set s2+4 ;; Section 8.2.12.10 External Symbol Definition - xdef xdef s1 xdef s2 xdef entry ;; Section 8.2.12.11 External Symbol Reference - xref section .text xref printf xrefb write entry: rts