1 2 # 3 # Try to verify all operand modes for 68HC12 4 # 5 sect .text 6 globl start 7 8 start: 9 anda [12,x] ; Indexed indirect 10 ldaa #10 11 ldx L1 12 L1: ldy ,x 13 addd 1,y ; Offset from register 14 subd -1,y 15 eora 15,y 16 eora -16,y 17 eorb 16,y 18 eorb -17,y 19 oraa 128,sp 20 orab -128,sp 21 orab 255,x 22 orab -256,x 23 anda 256,x 24 andb -257,x 25 anda [12,x] ; Indexed indirect (16-bit offset) 26 ldaa [257,y] 27 ldab [32767,sp] 28 ldd [32768,pc] 29 ldd L1,pc 30 std a,x ; Two-reg index 31 ldx b,x 32 stx d,y 33 addd 1,+x ; Pre-Auto inc 34 addd 2,+x 35 addd 8,+x 36 addd 1,sp+ ; Post-Auto inc 37 addd 2,sp+ 38 addd 8,sp+ 39 subd 1,-y ; Pre-Auto dec 40 subd 2,-y 41 subd 8,-y 42 addd 1,y- ; Post-Auto dec 43 addd 2,y- 44 addd 8,y- 45 std [d,x] ; Indexed indirect with two reg index 46 std [d,y] 47 std [d,sp] 48 std [d,pc] 49 beq L1 50 lbeq start 51 lbcc L2 52 ;; 53 ;; Move insn with various operands 54 ;; 55 movb start, 1,x 56 movw 1,x, start 57 movb start, 1,+x 58 movb start, 1,-x 59 movb #23, 1,-sp 60 movb L1, L2 61 movb L1, a,x 62 movw L1, b,x 63 movw L1, d,x 64 movw d,x, a,x 65 movw b,sp, d,pc 66 movw b,sp, L1 67 movw b,sp, 1,x 68 movw d,x, a,y 69 trap #0x30 70 trap #0x39 71 trap #0x40 72 trap #0x80 73 trap #255 74 L2: 75 movw 1,x,2,x 76 movw -1,-1 77 movw -1,1,x 78 movw #-1,1,x 79 movw 3,8 80 movw #3,3 81 movw #3,1,x 82 movw 3,1,x 83 movw 3,+2,x 84 movw 4,-2,x 85 rts 86 ;; 87 ;; Post-index byte with relocation 88 ;; 89 post_indexed_pb: 90 t1: 91 leas abort,x 92 t2: 93 leax t2-t1,y 94 leax toto,x 95 leas toto+titi,sp 96 leay titi,x 97 leas bb,y 98 leas min5b,pc 99 leas max5b,pc 100 leas min9b,pc 101 leas max9b,pc 102 103 ;; 104 ;; Disassembler bug with movb 105 ;; 106 movb #23,0x2345 107 movb #40,12,sp 108 movb #39,3,+sp 109 movb #20,14,sp 110 movw #0x3210,0x3456 111 movw #0x4040,12,sp 112 movw #0x3900,3,+sp 113 movw #0x2000,14,sp 114 # movb #111,start 115 116 titi = 10 117 toto = 100 118 min5b= -16 119 max5b= 15 120 min9b= -256 121 max9b= 255 122 bb = 10240 123
