diff options
Diffstat (limited to 'main.asm')
| -rw-r--r-- | main.asm | 83 |
1 files changed, 52 insertions, 31 deletions
@@ -115,21 +115,6 @@ DONE MACRO ; 8 cycles, 2 bytes ;; == Special Opcode Macros ======================================== - ;; Do an ADD \2,\1 - ;; XXX check this -F_ADD_B MACRO ; 14 bytes? - move.b \1,f_tmp_src_b ; preserve operands for flag work - move.b \2,f_tmp_dst_b - move.b #0,flag_n - move.b #1,f_tmp_byte - add \1,\2 - move sr,f_host_ccr - ENDM - - ;; Do an ADC \2,\1 -F_ADC_B MACRO - ENDM - ;; Do a SUB \2,\1 F_SUB_B MACRO ;14 bytes? move.b \1,f_tmp_src_b ; preserve operands for flagging @@ -140,18 +125,6 @@ F_SUB_B MACRO ;14 bytes? move sr,f_host_ccr ENDM - ;; Do a SBC \2,\1 -F_SBC_B MACRO - ENDM - -F_AND_B MACRO - ENDM - -F_XOR_B MACRO - ENDM - -F_OR_B MACRO - ENDM ;; Do an ADD \1,\2 F_ADD_W MACRO @@ -173,10 +146,6 @@ F_INC_W MACRO F_DEC_W MACRO ENDM - ;; COMPARE instruction -F_CP_B MACRO - ENDM - ;; I might be able to unify rotation flags or maybe use a ;; lookup table @@ -1261,6 +1230,19 @@ emu_op_7f: ;; LD A,A DONE + + + ;; Do an ADD \2,\1 + ;; XXX check this +F_ADD_B MACRO ; 14 bytes? + move.b \1,f_tmp_src_b ; preserve operands for flag work + move.b \2,f_tmp_dst_b + move.b #0,flag_n + move.b #1,f_tmp_byte + add \1,\2 + move sr,f_host_ccr + ENDM + START emu_op_80: ;; ADD A,B @@ -1317,6 +1299,13 @@ emu_op_87: F_ADD_B d3,d3 DONE + + + ;; Do an ADC \2,\1 +F_ADC_B MACRO + ;; XXX + ENDM + START emu_op_88: ;; ADC A,B @@ -1435,6 +1424,14 @@ emu_op_97: F_SUB_B d3,d3 DONE + + + + ;; Do a SBC \2,\1 +F_SBC_B MACRO + ;; XXX + ENDM + START emu_op_98: ;; SBC A,B @@ -1491,6 +1488,14 @@ emu_op_9f: F_SBC_B d3,d3 DONE + + + + +F_AND_B MACRO + ;; XXX + ENDM + START emu_op_a0: ;; AND B @@ -1547,6 +1552,14 @@ emu_op_a7: F_AND_B d3,d3 DONE + + + + +F_XOR_B MACRO + ;; XXX + ENDM + START emu_op_a8: ;; XOR B @@ -1603,6 +1616,14 @@ emu_op_af: F_XOR_B d3,d3 DONE + + + + +F_OR_B MACRO + ;; XXX + ENDM + START emu_op_b0: ;; OR B |