Turnbull China Bikeride

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Text File | 1995-02-03 | 15KB | 710 lines

; Assemblercode der Routine test_if_possible ; typedef struct {char x,y,test,domain;} border_typ; AREA |C$$code|, CODE, READONLY EXPORT |test_if_possible| r0 RN 0 r1 RN 1 r2 RN 2 r3 RN 3 r4 RN 4 r5 RN 5 r6 RN 6 r7 RN 7 r8 RN 8 r9 RN 9 r10 RN 10 r11 RN 11 r12 RN 12 r13 RN 13 r14 RN 14 r15 RN 15 sl RN 10 ; stack limit fp RN 11 ; frame pointer ip RN 12 ; temporary workspace sp RN 13 ; stack pointer lr RN 14 ; link register pc RN 15 ; program counter d RN 0 XMAX RN 1 YMAX RN 2 feld RN 3 ptr RN 3 x RN 4 y RN 5 test RN 6 _14 RN 7 _58 RN 8 buffer1 RN 9 buffer2 RN 10 mines RN 11 marks RN 12 MINE_1 EQU &00000001 MINE_2 EQU &00000100 MINE_3 EQU &00010000 MINE_4 EQU &01000000 MARK_1 EQU &00000002 MARK_2 EQU &00000200 MARK_3 EQU &00020000 MARK_4 EQU &02000000 CLOSED_1 EQU &00000004 CLOSED_2 EQU &00000400 CLOSED_3 EQU &00040000 CLOSED_4 EQU &04000000 ; a b c d e ; f 1 2 3 g ; h 4 X 5 i ; j 6 7 8 k ; l m n o p DCB "test_if_possible",0 ALIGN ; test_if_possible(border_typ *b,int XMAX,int YMAX,char *feld); |test_if_possible| STMFD sp!,{r4-r12,r14} LDRB x,[r0] LDRB y,[r0,#1] LDR test,[r0,#4] MUL d,x,YMAX ADD d,d,y ADD ptr,feld,d,LSL #2 CMP y,#0 MOVLE _14,#CLOSED_1 ; fields 1,2 and 3 are closed ORRLE _14,_14,#CLOSED_2 ; and need not be processed ORRLE _14,_14,#CLOSED_3 BLE middle SUB ptr,ptr,#4 CMP x,#0 LDRGTB _14,[ptr,-YMAX,LSL #2] ; load field no 1 MOVLE _14,#CLOSED_1 LDRB d,[ptr] ; load field no 2 ORR _14,_14,d,LSL #8 SUB d,XMAX,x CMP d,#1 LDRGTB d,[ptr,YMAX,LSL #2] ; load field no 3 MOVLE d,#CLOSED_1 ORR _14,_14,d,LSL #16 ADD ptr,ptr,#4 middle CMP x,#0 LDRGTB d,[ptr,-YMAX,LSL #2] ; load field no 4 MOVLE d,#CLOSED_1 ORR _14,_14,d,LSL #24 LDRB buffer1,[ptr] ; load field X SUB d,XMAX,x CMP d,#1 LDRGTB _58,[ptr,YMAX,LSL #2] ; load field no 5 MOVLE _58,#CLOSED_1 SUB d,YMAX,y CMP d,#1 ORRLE _58,_58,#CLOSED_2 ORRLE _58,_58,#CLOSED_3 ORRLE _58,_58,#CLOSED_4 BLE init_done ADD ptr,ptr,#4 CMP x,#0 LDRGTB d,[ptr,-YMAX,LSL #2] ; load field no 6 MOVLE d,#CLOSED_1 ORR _58,_58,d,LSL #8 LDRB d,[ptr] ; load field no 7 ORR _58,_58,d,LSL #16 SUB d,XMAX,x CMP d,#1 LDRGTB d,[ptr,YMAX,LSL #2] ; load field no 8 MOVLE d,#CLOSED_1 ORR _58,_58,d,LSL #24 SUB ptr,ptr,#4 init_done MOV buffer2,#0 field_1 TST _14,#CLOSED_1 ; buffer1 = X 0 0 0 BNE field_2 ; buffer2 = 0 0 0 0 CMP y,#2 BLT f1_abc SUB ptr,ptr,#8 CMP x,#2 LDRGEB d,[ptr,-YMAX, LSL #3] ; load a ORRGE buffer1,buffer1,d,LSL #8 CMP x,#1 LDRGEB d,[ptr,-YMAX,LSL #2] ; load b ORRGE buffer1,buffer1,d,LSL #16 LDRB d,[ptr] ; load c ORR buffer1,buffer1,d,LSL #24 ADD ptr,ptr,#8 f1_abc CMP x,#2 BLT f1_fh SUB ptr,ptr,YMAX,LSL #3 CMP y,#1 LDRGEB buffer2,[ptr,-#4] ; load f LDRB d,[ptr] ; load h ORR buffer2,buffer2,d,LSL #8 ADD ptr,ptr,YMAX,LSL #3 ; buffer1 = X a b c f1_fh ; buffer2 = f h 0 0 MOV mines,#0 TST buffer1,#MINE_1 ADDNE mines,mines,#1 TST buffer1,#MINE_2 ADDNE mines,mines,#1 TST buffer1,#MINE_3 ADDNE mines,mines,#1 TST buffer1,#MINE_4 ADDNE mines,mines,#1 TST buffer2,#MINE_1 ADDNE mines,mines,#1 TST buffer2,#MINE_2 ADDNE mines,mines,#1 TST _14,#MINE_2 ADDNE mines,mines,#1 TST _14,#MINE_4 ADDNE mines,mines,#1 MOV marks,#0 TST buffer1,#MARK_1 ADDNE marks,marks,#1 TST buffer1,#MARK_2 ADDNE marks,marks,#1 TST buffer1,#MARK_3 ADDNE marks,marks,#1 TST buffer1,#MARK_4 ADDNE marks,marks,#1 TST buffer2,#MARK_1 ADDNE marks,marks,#1 TST buffer2,#MARK_2 ADDNE marks,marks,#1 TST _14,#MARK_2 ADDNE marks,marks,#1 TST _14,#MARK_4 ADDNE marks,marks,#1 CMP marks,mines BGT tip_false MOV d,test AND d,d,#&F ADD d,d,marks CMP d,mines BLT tip_false field_2 TST _14,#CLOSED_2 ; buffer1 = X a b c BNE field_3 ; buffer2 = f h 0 0 BIC buffer1,buffer1,#&0000FF00 ; delete a TST _14,#CLOSED_1 BEQ f2_bc_loaded CMP y,#2 BLT f2_d SUB ptr,ptr,#8 CMP x,#1 LDRGEB d,[ptr,-YMAX,LSL #2] ; load b ORRGE buffer1,buffer1,d,LSL #16 LDRB d,[ptr] ; load c ORR buffer1,buffer1,d,LSL #24 SUB d,XMAX,x CMP d,#1 LDRGTB d,[ptr,YMAX,LSL #2] ; load d ORRGT buffer1,buffer1,d,LSL #8 ADD ptr,ptr,#8 B f2_d f2_bc_loaded CMP y,#2 BLT f2_d SUB ptr,ptr,#8 SUB d,XMAX,x CMP d,#1 LDRGTB d,[ptr,YMAX,LSL #2] ; load d ORRGT buffer1,buffer1,d,LSL #8 ADD ptr,ptr,#8 f2_d MOV mines,#0 ; buffer1 = X d b c TST buffer1,#MINE_1 ; buffer2 = f h 0 0 ADDNE mines,mines,#1 TST buffer1,#MINE_2 ADDNE mines,mines,#1 TST buffer1,#MINE_3 ADDNE mines,mines,#1 TST buffer1,#MINE_4 ADDNE mines,mines,#1 TST _14,#MINE_1 ADDNE mines,mines,#1 TST _14,#MINE_3 ADDNE mines,mines,#1 TST _14,#MINE_4 ADDNE mines,mines,#1 TST _58,#MINE_1 ADDNE mines,mines,#1 MOV marks,#0 TST buffer1,#MARK_1 ADDNE marks,marks,#1 TST buffer1,#MARK_2 ADDNE marks,marks,#1 TST buffer1,#MARK_3 ADDNE marks,marks,#1 TST buffer1,#MARK_4 ADDNE marks,marks,#1 TST _14,#MARK_1 ADDNE marks,marks,#1 TST _14,#MARK_3 ADDNE marks,marks,#1 TST _14,#MARK_4 ADDNE marks,marks,#1 TST _58,#MARK_1 ADDNE marks,marks,#1 CMP marks,mines BGT tip_false MOV d,test,LSR #4 AND d,d,#&F ADD d,d,marks CMP d,mines BLT tip_false field_3 TST _14,#CLOSED_3 ; buffer1 = X d b c BNE field_5 ; buffer2 = f h 0 0 TST _14,#CLOSED_2 BEQ f3_cd_loaded BIC buffer1,buffer1,#&0000FF00 ; delete a CMP y,#2 BLT f3_cd_loaded SUB ptr,ptr,#8 LDRB d,[ptr] ; load c ORR buffer1,buffer1,d,LSL #24 SUB d,XMAX,x CMP d,#1 LDRGTB d,[ptr,YMAX,LSL #2] ; load d ORRGT buffer1,buffer1,d,LSL #8 ADD ptr,ptr,#8 f3_cd_loaded BIC buffer1,buffer1,#&00FF0000 ; delete b SUB d,XMAX,x CMP d,#2 BLE f3_egi ADD ptr,ptr,YMAX,LSL #3 CMP y,#2 LDRGEB d,[ptr,-#8] ; load e ORRGE buffer1,buffer1,d,LSL #16 CMP y,#1 LDRGEB d,[ptr,-#4] ; load g ORRGE buffer2,buffer2,d,LSL #16 LDRB d,[ptr] ; load i ORR buffer2,buffer2,d,LSL #24 SUB ptr,ptr,YMAX,LSL #3 f3_egi MOV mines,#0 ; buffer1 = X d e c TST buffer1,#MINE_1 ; buffer2 = f h g i ADDNE mines,mines,#1 TST buffer1,#MINE_2 ADDNE mines,mines,#1 TST buffer1,#MINE_3 ADDNE mines,mines,#1 TST buffer1,#MINE_4 ADDNE mines,mines,#1 TST buffer2,#MINE_3 ADDNE mines,mines,#1 TST buffer2,#MINE_4 ADDNE mines,mines,#1 TST _14,#MINE_2 ADDNE mines,mines,#1 TST _58,#MINE_1 ADDNE mines,mines,#1 MOV marks,#0 TST buffer1,#MARK_1 ADDNE marks,marks,#1 TST buffer1,#MARK_2 ADDNE marks,marks,#1 TST buffer1,#MARK_3 ADDNE marks,marks,#1 TST buffer1,#MARK_4 ADDNE marks,marks,#1 TST buffer2,#MARK_3 ADDNE marks,marks,#1 TST buffer2,#MARK_4 ADDNE marks,marks,#1 TST _14,#MARK_2 ADDNE marks,marks,#1 TST _58,#MARK_1 ADDNE marks,marks,#1 CMP marks,mines BGT tip_false MOV d,test,LSR #8 AND d,d,#&F ADD d,d,marks CMP d,mines BLT tip_false field_5 TST _58,#CLOSED_1 ; buffer1 = X d e c BNE field_8 ; buffer2 = f h g i BIC buffer1,buffer1,#&FF000000 ; delete c TST _14,#CLOSED_3 BEQ f5_gi_loaded SUB d,XMAX,x CMP d,#2 BLE f5_gi_loaded ADD ptr,ptr,YMAX,LSL #3 CMP y,#1 LDRGEB d,[ptr,-#4] ; load g ORRGE buffer2,buffer2,d,LSL #16 LDRB d,[ptr] ; load i ORR buffer2,buffer2,d,LSL #24 SUB d,YMAX,y CMP d,#1 LDRGTB d,[ptr,#4] ; load k ORRGT buffer1,buffer1,d,LSL #24 SUB ptr,ptr,YMAX,LSL #3 B f5_k f5_gi_loaded SUB d,XMAX,x CMP d,#2 BLE f5_k ADD ptr,ptr,YMAX,LSL #3 SUB d,YMAX,y CMP d,#1 LDRGTB d,[ptr,#4] ; load k ORRGT buffer1,buffer1,d,LSL #24 SUB ptr,ptr,YMAX,LSL #3 f5_k MOV mines,#0 ; buffer1 = X d e k TST buffer1,#MINE_1 ; buffer2 = f h g i ADDNE mines,mines,#1 TST buffer1,#MINE_4 ADDNE mines,mines,#1 TST buffer2,#MINE_3 ADDNE mines,mines,#1 TST buffer2,#MINE_4 ADDNE mines,mines,#1 TST _14,#MINE_2 ADDNE mines,mines,#1 TST _14,#MINE_3 ADDNE mines,mines,#1 TST _58,#MINE_3 ADDNE mines,mines,#1 TST _58,#MINE_4 ADDNE mines,mines,#1 MOV marks,#0 TST buffer1,#MARK_1 ADDNE marks,marks,#1 TST buffer1,#MARK_4 ADDNE marks,marks,#1 TST buffer2,#MARK_3 ADDNE marks,marks,#1 TST buffer2,#MARK_4 ADDNE marks,marks,#1 TST _14,#MARK_2 ADDNE marks,marks,#1 TST _14,#MARK_3 ADDNE marks,marks,#1 TST _58,#MARK_3 ADDNE marks,marks,#1 TST _58,#MARK_4 ADDNE marks,marks,#1 CMP marks,mines BGT tip_false MOV d,test,LSR #16 AND d,d,#&F ADD d,d,marks CMP d,mines BLT tip_false field_8 TST _58,#CLOSED_4 ; buffer1 = X d e k BNE field_7 ; buffer2 = f h g i TST _58,#CLOSED_1 BEQ f8_ik_loaded BIC buffer1,buffer1,#&FF000000 ; delete c SUB d,XMAX,x CMP d,#2 BLE f8_ik_loaded ADD ptr,ptr,YMAX,LSL #3 LDRB d,[ptr] ; load i ORR buffer2,buffer2,d,LSL #24 SUB d,YMAX,y CMP d,#1 LDRGTB d,[ptr,#4] ; load k ORRGT buffer1,buffer1,d,LSL #24 SUB ptr,ptr,YMAX,LSL #3 f8_ik_loaded BIC buffer2,buffer2,#&00FF0000 BIC buffer1,buffer1,#&0000FF00 BIC buffer1,buffer1,#&00FF0000 SUB d,YMAX,y CMP d,#2 BLE f8_no_loaded ADD ptr,ptr,#8 LDRB d,[ptr] ; load n ORR buffer2,buffer2,d,LSL #16 SUB d,XMAX,x CMP d,#1 LDRGTB d,[ptr,YMAX,LSL #2] ; load o ORRGT buffer1,buffer1,d,LSL #16 SUB d,XMAX,x CMP d,#2 LDRGTB d,[ptr,YMAX,LSL #3] ; load p ORRGT buffer1,buffer1,d,LSL #8 SUB ptr,ptr,#8 f8_no_loaded MOV mines,#0 ; buffer1 = X p o k TST buffer1,#MINE_1 ; buffer2 = f h n i ADDNE mines,mines,#1 TST buffer1,#MINE_2 ADDNE mines,mines,#1 TST buffer1,#MINE_3 ADDNE mines,mines,#1 TST buffer1,#MINE_4 ADDNE mines,mines,#1 TST buffer2,#MINE_3 ADDNE mines,mines,#1 TST buffer2,#MINE_4 ADDNE mines,mines,#1 TST _58,#MINE_1 ADDNE mines,mines,#1 TST _58,#MINE_3 ADDNE mines,mines,#1 MOV marks,#0 TST buffer1,#MARK_1 ADDNE marks,marks,#1 TST buffer1,#MARK_2 ADDNE marks,marks,#1 TST buffer1,#MARK_3 ADDNE marks,marks,#1 TST buffer1,#MARK_4 ADDNE marks,marks,#1 TST buffer2,#MARK_3 ADDNE marks,marks,#1 TST buffer2,#MARK_4 ADDNE marks,marks,#1 TST _58,#MARK_1 ADDNE marks,marks,#1 TST _58,#MARK_3 ADDNE marks,marks,#1 CMP marks,mines BGT tip_false MOV d,test,LSR #28 AND d,d,#&F ADD d,d,marks CMP d,mines BLT tip_false field_7 TST _58,#CLOSED_3 ; buffer1 = X p o k BNE field_6 ; buffer2 = f h n i BIC buffer2,buffer2,#&FF000000 ; delete i TST _58,#CLOSED_4 BEQ f7_no_loaded BIC buffer1,buffer1,#&00FF0000 ; delete k BIC buffer2,buffer2,#&00FF0000 ; delete p SUB d,YMAX,y CMP d,#2 BLE f7_no_loaded ADD ptr,ptr,#8 CMP x,#1 LDRGEB d,[ptr,-YMAX,LSL #2] ; load m ORRGE buffer2,buffer2,d,LSL #24 LDRB d,[ptr] ; load n ORR buffer2,buffer2,d,LSL #16 SUB d,XMAX,x CMP d,#1 LDRGTB d,[ptr,YMAX,LSL #2] ; load o ORRGT buffer1,buffer1,d,LSL #16 SUB ptr,ptr,#8 B f7_m f7_no_loaded SUB d,YMAX,y CMP d,#2 BLE f7_m ADD ptr,ptr,#8 SUB d,XMAX,x CMP d,#1 LDRGTB d,[ptr,-YMAX,LSL #2] ; load m ORRGT buffer2,buffer2,d,LSL #24 SUB ptr,ptr,#8 f7_m MOV mines,#0 ; buffer1 = X p o k TST buffer1,#MINE_1 ; buffer2 = f h n m ADDNE mines,mines,#1 TST buffer1,#MINE_3 ADDNE mines,mines,#1 TST buffer2,#MINE_3 ADDNE mines,mines,#1 TST buffer2,#MINE_4 ADDNE mines,mines,#1 TST _14,#MINE_4 ADDNE mines,mines,#1 TST _58,#MINE_1 ADDNE mines,mines,#1 TST _58,#MINE_2 ADDNE mines,mines,#1 TST _58,#MINE_4 ADDNE mines,mines,#1 MOV marks,#0 TST buffer1,#MARK_1 ADDNE marks,marks,#1 TST buffer1,#MARK_3 ADDNE marks,marks,#1 TST buffer2,#MARK_3 ADDNE marks,marks,#1 TST buffer2,#MARK_4 ADDNE marks,marks,#1 TST _14,#MARK_4 ADDNE marks,marks,#1 TST _58,#MARK_1 ADDNE marks,marks,#1 TST _58,#MARK_2 ADDNE marks,marks,#1 TST _58,#MARK_4 ADDNE marks,marks,#1 CMP marks,mines BGT tip_false MOV d,test,LSR #24 AND d,d,#&F ADD d,d,marks CMP d,mines BLT tip_false field_6 TST _58,#CLOSED_2 ; buffer1 = X p o k BNE field_4 ; buffer2 = f h n m TST _58,#CLOSED_3 BEQ f6_mn_loaded BIC buffer2,buffer2,#&00FF0000 ; delete m BIC buffer2,buffer2,#&FF000000 ; delete n SUB d,YMAX,y CMP d,#2 BLE f6_mn_loaded ADD ptr,ptr,#8 CMP x,#1 LDRGEB d,[ptr,-YMAX,LSL #2] ; load m ORRGE buffer2,buffer2,d,LSL #24 LDRB d,[ptr] ; load n ORR buffer2,buffer2,d,LSL #16 SUB ptr,ptr,#8 f6_mn_loaded BIC buffer1,buffer1,#&0000FF00 ; delete d BIC buffer1,buffer1,#&00FF0000 ; delete e BIC buffer1,buffer1,#&FF000000 ; delete g CMP x,#2 BLT f6_hjl SUB ptr,ptr,YMAX,LSL #3 LDRB d,[ptr] ; load h ORR buffer1,buffer1,d,LSL #8 SUB d,YMAX,y CMP d,#1 LDRGTB d,[ptr,#4] ; load j ORRGT buffer1,buffer1,d,LSL #16 SUB d,YMAX,y CMP d,#2 LDRGTB d,[ptr,#8] ; load l ORRGT buffer1,buffer1,d,LSL #24 ADD ptr,ptr,YMAX,LSL #3 f6_hjl MOV mines,#0 ; buffer1 = X h j l TST buffer1,#MINE_1 ; buffer2 = f h n m ADDNE mines,mines,#1 TST buffer1,#MINE_2 ADDNE mines,mines,#1 TST buffer1,#MINE_3 ADDNE mines,mines,#1 TST buffer1,#MINE_4 ADDNE mines,mines,#1 TST buffer2,#MINE_3 ADDNE mines,mines,#1 TST buffer2,#MINE_4 ADDNE mines,mines,#1 TST _14,#MINE_4 ADDNE mines,mines,#1 TST _58,#MINE_3 ADDNE mines,mines,#1 MOV marks,#0 TST buffer1,#MARK_1 ADDNE marks,marks,#1 TST buffer1,#MARK_2 ADDNE marks,marks,#1 TST buffer1,#MARK_3 ADDNE marks,marks,#1 TST buffer1,#MARK_4 ADDNE marks,marks,#1 TST buffer2,#MARK_3 ADDNE marks,marks,#1 TST buffer2,#MARK_4 ADDNE marks,marks,#1 TST _14,#MARK_4 ADDNE marks,marks,#1 TST _58,#MARK_3 ADDNE marks,marks,#1 CMP marks,mines BGT tip_false MOV d,test,LSR #20 AND d,d,#&F ADD d,d,marks CMP d,mines BLT tip_false field_4 TST _14,#CLOSED_4 ; buffer1 = X h j l BNE tip_true ; buffer2 = f h n m TST _58,#CLOSED_2 BEQ f4_hj_loaded BIC buffer1,buffer1,#&00FF0000 BIC buffer1,buffer1,#&0000FF00 BIC buffer2,buffer2,#&00FF0000 CMP x,#2 BLT f4_hj_loaded SUB ptr,ptr,YMAX,LSL #3 CMP y,#1 LDRGEB d,[ptr,-#4] ; load f ORRGE buffer2,buffer2,d,LSL #16 LDRB d,[ptr] ; load h ORR buffer1,buffer1,d,LSL #8 SUB d,YMAX,y CMP d,#1 LDRGTB d,[ptr,#4] ; load j ORRGT buffer1,buffer1,d,LSL #16 ADD ptr,ptr,YMAX,LSL #3 B f4_f f4_hj_loaded BIC buffer2,buffer2,#&00FF0000 ; delete CMP x,#2 BLT f4_f SUB ptr,ptr,YMAX,LSL #3 CMP y,#1 LDRGEB d,[ptr,-#4] ; load f ORRGE buffer2,buffer2,d,LSL #16 ADD ptr,ptr,YMAX,LSL #3 f4_f MOV mines,#0 ; buffer1 = X h j l TST buffer1,#MINE_1 ; buffer2 = f h f m ADDNE mines,mines,#1 TST buffer1,#MINE_2 ADDNE mines,mines,#1 TST buffer1,#MINE_3 ADDNE mines,mines,#1 TST buffer2,#MINE_3 ADDNE mines,mines,#1 TST _14,#MINE_1 ADDNE mines,mines,#1 TST _14,#MINE_2 ADDNE mines,mines,#1 TST _58,#MINE_2 ADDNE mines,mines,#1 TST _58,#MINE_3 ADDNE mines,mines,#1 MOV marks,#0 TST buffer1,#MARK_1 ADDNE marks,marks,#1 TST buffer1,#MARK_2 ADDNE marks,marks,#1 TST buffer1,#MARK_3 ADDNE marks,marks,#1 TST buffer2,#MARK_3 ADDNE marks,marks,#1 TST _14,#MARK_1 ADDNE marks,marks,#1 TST _14,#MARK_2 ADDNE marks,marks,#1 TST _58,#MARK_2 ADDNE marks,marks,#1 TST _58,#MARK_3 ADDNE marks,marks,#1 CMP marks,mines BGT tip_false MOV d,test,LSR #12 AND d,d,#&F ADD d,d,marks CMP d,mines BLT tip_false tip_true MOV r0,#1 LDMFD sp!,{r4-r12,pc} tip_false MOV r0,#0 LDMFD sp!,{r4-r12,pc} END