diff options
| author | Duncan Smith | 2010-08-02 18:59:25 -0700 |
|---|---|---|
| committer | Duncan Smith | 2010-08-02 18:59:25 -0700 |
| commit | d6c7556b85644c188f82baba6e460f11e27a0454 (patch) | |
| tree | 03616476aff82ff69a080d27aae2cc496904f7bf /alu.asm | |
| parent | e73875195a59aa1802d7b564f627c487ef97385d (diff) | |
HACK XXX UNDO LATER Made relative flag references absolute.
A68k wanted to add relocations, but couldn't figure out how. Undo
this later when it's speed time, as this (probably) slows things down
a bit.
Diffstat (limited to 'alu.asm')
| -rw-r--r-- | alu.asm | 48 |
1 files changed, 24 insertions, 24 deletions
@@ -7,10 +7,10 @@ alu_add: ;; d1 + d0 -> d1 move.b d0,f_tmp_src_b ; preserve operands for flag work move.b d1,f_tmp_dst_b - move.b #1,(f_tmp_byte-flag_storage)(a3) + move.b #1,f_tmp_byte add d0,d1 - move sr,(f_host_sr-flag_storage)(a3) - move.w #0202,(flag_byte-flag_storage)(a3) + move sr,f_host_sr + move.w #0202,flag_byte rts alu_adc: @@ -21,11 +21,11 @@ alu_adc: move.b flag_byte(pc),d2 andi.b #1,d2 add.b d0,d2 - move.b d2,(f_tmp_src_b-flag_storage)(a3) - move.b d1,(f_tmp_dst_b-flag_storage)(a3) + move.b d2,f_tmp_src_b + move.b d1,f_tmp_dst_b add.b d2,d1 - move sr,(f_host_ccr-flag_storage)(a3) - move.w #$0202,(flag_byte-flag_storage)(a3) + move sr,f_host_ccr + move.w #$0202,flag_byte rts alu_sbc: @@ -39,12 +39,12 @@ alu_sbc: move.b flag_byte(pc),d2 andi.b #1,d2 add.b d0,d2 - move.b d2,(f_tmp_src_b-flag_storage)(a3) - move.b d1,(f_tmp_dst_b-flag_storage)(a3) + move.b d2,f_tmp_src_b + move.b d1,f_tmp_dst_b sub.b d2,d1 - move sr,(f_host_sr-flag_storage)(a3) - move.b #$02,(flag_byte-flag_storage)(a3) - move.b #$02,(flag_valid-flag_storage)(a3) + move sr,f_host_sr + move.b #$02,flag_byte + move.b #$02,flag_valid pop.l d2 rts @@ -57,13 +57,13 @@ alu_sub: ;; XXX use lea and then d(an) if you have a spare register. ;; preserve operands for flagging - move.b d0,(f_tmp_src_b-flag_storage)(a3) - move.b d1,(f_tmp_dst_b-flag_storage)(a3) - move.b #1,(f_tmp_byte-flag_storage)(a3) - andi.b #%00000010,(flag_valid-flag_storage)(a3) - move.b #%00000010,(flag_byte-flag_storage)(a3) + move.b d0,f_tmp_src_b + move.b d1,f_tmp_dst_b + move.b #1,f_tmp_byte + andi.b #%00000010,flag_valid + move.b #%00000010,flag_byte sub d0,d1 - move sr,(f_host_sr-flag_storage)(a3) + move sr,f_host_sr rts alu_and: @@ -81,11 +81,11 @@ alu_or: alu_cp: ;; Same as SUB but the macro that calls this doesn't save the ;; result. - move.b d0,(f_tmp_src_b-flag_storage)(a3) - move.b d1,(f_tmp_dst_b-flag_storage)(a3) - move.b #1,(f_tmp_byte-flag_storage)(a3) - andi.b #%00000010,(flag_valid-flag_storage)(a3) - move.b #%00000010,(flag_byte-flag_storage)(a3) + move.b d0,f_tmp_src_b + move.b d1,f_tmp_dst_b + move.b #1,f_tmp_byte + andi.b #%00000010,flag_valid + move.b #%00000010,flag_byte sub d0,d1 - move sr,(f_host_sr-flag_storage)(a3) + move sr,f_host_sr rts |