Duplicated branch code for i_bra_ex, to avoid fiddle needed to fit EX AF,AF' for bcc/bcs.
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Simon Owen
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b1c8dcedee
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0c9415424b
102
opdefs.inc
102
opdefs.inc
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@ -98,75 +98,75 @@ op_5e: equ &b35e ; +18
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op_5f: equ &b95f ; +13
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op_60: equ &ba60 ; +13
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op_61: equ &b861 ; +14
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op_62: equ &bb62 ; +3
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op_62: equ &bc62 ; +3
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op_63: equ &b063 ; +3
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op_64: equ &b764 ; +8
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op_65: equ &bc65 ; +8
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op_64: equ &bb64 ; +8
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op_65: equ &bd65 ; +8
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op_66: equ &b666 ; +13
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op_67: equ &b267 ; +9
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op_68: equ &bb68 ; +8
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op_67: equ &b767 ; +9
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op_68: equ &bc68 ; +8
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op_69: equ &b069 ; +27
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op_6a: equ &bd6a ; +7
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op_6a: equ &be6a ; +7
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op_6b: equ &b16b ; +3
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op_6c: equ &b56c ; +10
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op_6d: equ &b76d ; +9
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op_6d: equ &bb6d ; +9
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op_6e: equ &b16e ; +14
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op_6f: equ &b46f ; +13
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op_70: equ &b870 ; +10
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op_71: equ &b271 ; +18
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op_72: equ &b372 ; +16
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op_73: equ &ba73 ; +3
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op_74: equ &b974 ; +10
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op_75: equ &b675 ; +10
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op_76: equ &b576 ; +15
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op_6f: equ &b26f ; +13
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op_70: equ &b970 ; +10
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op_71: equ &b371 ; +18
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op_72: equ &b472 ; +16
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op_73: equ &b673 ; +3
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op_74: equ &ba74 ; +10
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op_75: equ &b775 ; +10
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op_76: equ &b676 ; +15
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op_77: equ &bc77 ; +9
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op_78: equ &ba78 ; +6
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op_79: equ &b779 ; +13
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op_78: equ &bd78 ; +6
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op_79: equ &b879 ; +13
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op_7a: equ &bb7a ; +9
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op_7b: equ &bd7b ; +3
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op_7c: equ &b47c ; +15
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op_7d: equ &b87d ; +13
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op_7e: equ &b17e ; +18
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op_7f: equ &b97f ; +13
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op_80: equ &ba80 ; +10
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op_81: equ &b681 ; +14
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op_82: equ &b382 ; +3
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op_7b: equ &be7b ; +3
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op_7c: equ &b57c ; +15
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op_7d: equ &b97d ; +13
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op_7e: equ &b27e ; +18
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op_7f: equ &ba7f ; +13
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op_80: equ &b180 ; +21
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op_81: equ &b781 ; +14
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op_82: equ &b482 ; +3
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op_83: equ &bb83 ; +3
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op_84: equ &b284 ; +10
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op_85: equ &b385 ; +8
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op_84: equ &b384 ; +10
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op_85: equ &b485 ; +8
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op_86: equ &b086 ; +10
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op_87: equ &b787 ; +9
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op_88: equ &bb88 ; +6
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op_89: equ &ba89 ; +7
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op_8a: equ &b88a ; +5
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op_8b: equ &bc8b ; +3
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op_8c: equ &b48c ; +12
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op_8d: equ &b58d ; +10
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op_8e: equ &b38e ; +12
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op_8f: equ &b28f ; +13
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op_87: equ &b887 ; +9
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op_88: equ &bc88 ; +6
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op_89: equ &bb89 ; +7
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op_8a: equ &b98a ; +5
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op_8b: equ &bd8b ; +3
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op_8c: equ &b58c ; +12
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op_8d: equ &b68d ; +10
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op_8e: equ &b48e ; +12
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op_8f: equ &b38f ; +13
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op_90: equ &b990 ; +8
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op_91: equ &b091 ; +19
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op_92: equ &b192 ; +17
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op_92: equ &b292 ; +17
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op_93: equ &b793 ; +3
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op_94: equ &b894 ; +12
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op_95: equ &b695 ; +10
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op_95: equ &b195 ; +10
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op_96: equ &b796 ; +12
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op_97: equ &ba97 ; +9
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op_98: equ &b498 ; +5
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op_98: equ &b698 ; +5
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op_99: equ &b599 ; +14
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op_9a: equ &bb9a ; +7
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op_9b: equ &b39b ; +3
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op_9b: equ &bc9b ; +3
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op_9c: equ &b99c ; +11
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op_9d: equ &b49d ; +14
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op_9e: equ &b39e ; +15
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op_9f: equ &b69f ; +13
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op_a0: equ &baa0 ; +7
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op_a1: equ &b2a1 ; +15
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op_a1: equ &b1a1 ; +15
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op_a2: equ &b8a2 ; +7
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op_a3: equ &b1a3 ; +3
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op_a3: equ &b7a3 ; +3
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op_a4: equ &b0a4 ; +10
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op_a5: equ &b7a5 ; +9
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op_a6: equ &b1a6 ; +10
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op_a5: equ &b2a5 ; +9
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op_a6: equ &b7a6 ; +10
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op_a7: equ &b5a7 ; +9
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op_a8: equ &baa8 ; +5
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op_a9: equ &b8a9 ; +6
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@ -174,19 +174,19 @@ op_aa: equ &b9aa ; +5
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op_ab: equ &bbab ; +3
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op_ac: equ &b4ac ; +12
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op_ad: equ &b6ad ; +11
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op_ae: equ &b7ae ; +12
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op_af: equ &b3af ; +13
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op_b0: equ &bab0 ; +8
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op_ae: equ &b3ae ; +12
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op_af: equ &b2af ; +13
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op_b0: equ &b7b0 ; +8
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op_b1: equ &b0b1 ; +20
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op_b2: equ &b1b2 ; +18
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op_b3: equ &b5b3 ; +3
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op_b4: equ &b2b4 ; +12
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op_b5: equ &b8b5 ; +11
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op_b4: equ &b8b4 ; +12
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op_b5: equ &b9b5 ; +11
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op_b6: equ &b5b6 ; +12
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op_b7: equ &b9b7 ; +9
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op_b7: equ &bbb7 ; +9
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op_b8: equ &b4b8 ; +6
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op_b9: equ &b6b9 ; +15
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op_ba: equ &bbba ; +8
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op_ba: equ &bcba ; +8
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op_bb: equ &babb ; +3
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op_bc: equ &b3bc ; +16
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op_bd: equ &b7bd ; +15
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@ -46,9 +46,6 @@ MSB:
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my $start = ($msb << 8) | $op;
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my $end = $start + $len{$op}-1;
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# Special fiddle to allow room for EX AF,AF' before BRA
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$start-- if $op == 0x80;
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# Check against what we've already positioned
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foreach (keys %off)
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{
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@ -71,9 +68,6 @@ MSB:
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}
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}
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# Undo fiddle so BRA is positioned as normal
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$off{0x80}++;
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# Position base so code finishes just before &c000
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$base = 0xc000 - (($size + 0xff) & ~0xff);
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15
opimpl.inc
15
opimpl.inc
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@ -1844,11 +1844,8 @@ op_7f_len: equ $-op_7f
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org op_80-1
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org op_80
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dump $
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i_bra_ex: ex af,af' ; preseve C before branch
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; org op_80
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; dump $
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i_bra: ld a,(de) ; BRA [65C02]
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inc de
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ld l,a ; offset low
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@ -1858,6 +1855,16 @@ i_bra: ld a,(de) ; BRA [65C02]
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add hl,de ; PC=PC+e
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ex de,hl
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jp (ix) ; main_loop
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i_bra_ex: ex af,af' ; preseve C before branch
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ld a,(de)
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inc de
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ld l,a ; offset low
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rla ; set carry with sign
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sbc a,a ; form high byte for offset
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ld h,a
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add hl,de ; PC=PC+e
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ex de,hl
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jp (ix) ; main_loop
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op_80_len: equ $-op_80
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