Initial revision
This commit is contained in:
ceriel
parent
4e0c9a780a
commit
ccf7ef96b5
6 changed files with 538 additions and 0 deletions
42
mach/arm/as/mach0.c
Normal file
42
mach/arm/as/mach0.c
Normal file
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@ -0,0 +1,42 @@
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#define LISTING
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#define ASLD
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#define THREE_PASS
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#undef valu_t
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#define valu_t long
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#undef addr_t
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#define addr_t long
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#undef word_t
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#define word_t long
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#undef ALIGNWORD
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#define ALIGNWORD 4
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#undef ALIGNSECT
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#define ALIGNSECT 4
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#undef VALWIDTH
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#define VALWIDTH 8
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#define S_REG 0xF
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#define S_NUM 0x8
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#define ADC 0x00A00000
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#define ADD 0x00800000
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#define AND 0x00000000
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#define BIC 0x01C00000
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#define EOR 0x00200000
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#define ORR 0x01800000
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#define RSB 0x00600000
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#define RSC 0x00E00000
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#define SBC 0x00C00000
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#define SUB 0x00400000
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#define MOV 0x01A00000
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#define MVN 0x01E00000
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#define CMN 0x01700000
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#define CMP 0x01500000
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#define TEQ 0x01300000
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#define TST 0x01100000
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1
mach/arm/as/mach1.c
Normal file
1
mach/arm/as/mach1.c
Normal file
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@ -0,0 +1 @@
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extern word_t opcode;
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21
mach/arm/as/mach2.c
Normal file
21
mach/arm/as/mach2.c
Normal file
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@ -0,0 +1,21 @@
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%token <y_word> COND
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%token <y_word> LINK
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%token <y_word> BRANCH
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%token <y_word> DATA1
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%token <y_word> DATA2
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%token <y_word> DATA3
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%token <y_word> SET
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%token <y_word> PEE
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%token <y_word> REG
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%token <y_word> SHIFT
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%token <y_word> RXX
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%token <y_word> SDT
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%token <y_word> BYTE
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%token <y_word> TRANS
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%token <y_word> BDT
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%token <y_word> SWI
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%token <y_word> ADR
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%type <y_word> optlink optcond opts optt optp optb optexc reglist rlist
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%type <y_word> optsign optpsr optshift shftcnt address offset
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%type <y_expr> operand
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115
mach/arm/as/mach3.c
Normal file
115
mach/arm/as/mach3.c
Normal file
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@ -0,0 +1,115 @@
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0, COND, 0x00000000, ".EQ",
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0, COND, 0x10000000, ".NE",
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0, COND, 0x20000000, ".CS",
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0, COND, 0x20000000, ".HS",
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0, COND, 0x30000000, ".CC",
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0, COND, 0x30000000, ".LO",
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0, COND, 0x40000000, ".MI",
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0, COND, 0x50000000, ".PL",
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0, COND, 0x60000000, ".VS",
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0, COND, 0x70000000, ".VC",
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0, COND, 0x80000000, ".HI",
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0, COND, 0x90000000, ".LS",
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0, COND, 0xA0000000, ".GE",
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0, COND, 0xB0000000, ".LT",
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0, COND, 0xC0000000, ".GT",
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0, COND, 0xD0000000, ".LE",
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0, COND, 0xE0000000, ".AL",
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0, COND, 0xF0000000, ".NV",
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0, LINK, 0x01000000, ".L",
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0, BRANCH, 0x0A000000, "BEQ",
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0, BRANCH, 0x1A000000, "BNE",
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0, BRANCH, 0x2A000000, "BCS",
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0, BRANCH, 0x2A000000, "BHS",
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0, BRANCH, 0x3A000000, "BCC",
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0, BRANCH, 0x3A000000, "BLO",
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0, BRANCH, 0x4A000000, "BMI",
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0, BRANCH, 0x5A000000, "BPL",
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0, BRANCH, 0x6A000000, "BVS",
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0, BRANCH, 0x7A000000, "BVC",
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0, BRANCH, 0x8A000000, "BHI",
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0, BRANCH, 0x9A000000, "BLS",
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0, BRANCH, 0xAA000000, "BGE",
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0, BRANCH, 0xBA000000, "BLT",
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0, BRANCH, 0xCA000000, "BGT",
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0, BRANCH, 0xDA000000, "BLE",
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0, BRANCH, 0xEA000000, "BAL",
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0, BRANCH, 0xFA000000, "BNV",
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0, DATA1, ADC, "ADC",
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0, DATA1, ADD, "ADD",
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0, DATA1, AND, "AND",
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0, DATA1, BIC, "BIC",
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0, DATA1, EOR, "EOR",
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0, DATA1, ORR, "ORR",
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0, DATA1, RSB, "RSB",
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0, DATA1, RSC, "RSC",
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0, DATA1, SBC, "SBC",
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0, DATA1, SUB, "SUB",
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0, DATA2, MOV, "MOV",
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0, DATA2, MVN, "MVN",
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0, DATA3, CMN, "CMN",
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0, DATA3, CMP, "CMP",
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0, DATA3, TEQ, "TEQ",
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0, DATA3, TST, "TST",
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0, SET, 0x00100000, ".S",
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0, PEE, 0x0010F000, ".P",
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0, REG, 0, "R0",
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0, REG, 1, "R1",
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0, REG, 2, "R2",
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0, REG, 3, "R3",
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0, REG, 4, "R4",
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0, REG, 5, "R5",
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0, REG, 6, "R6",
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0, REG, 7, "R7",
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0, REG, 8, "R8",
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0, REG, 9, "R9",
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0, REG, 10, "R10",
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0, REG, 11, "R11",
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0, REG, 12, "R12",
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0, REG, 13, "R13",
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0, REG, 14, "R14",
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0, REG, 15, "R15",
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0, SHIFT, 0x00000000, "LSL",
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0, SHIFT, 0x00000000, "ASL",
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0, SHIFT, 0x00000020, "LSR",
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0, SHIFT, 0x00000040, "ASR",
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0, SHIFT, 0x00000060, "ROR",
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0, RXX, 0x00000060, "RXX",
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0, SDT, 0x04100000, "LDR",
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0, SDT, 0x04000000, "STR",
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0, BYTE, 0x00400000, ".B",
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0, TRANS, 0x00200000, ".T",
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0, BDT, 0x09100000, "LDMDB",
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0, BDT, 0x08100000, "LDMDA",
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0, BDT, 0x09900000, "LDMIB",
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0, BDT, 0x08900000, "LDMIA",
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0, BDT, 0x08100000, "LDMFD",
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0, BDT, 0x08900000, "LDMFA",
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0, BDT, 0x09100000, "LDMED",
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0, BDT, 0x09900000, "LDMEA",
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0, BDT, 0x09000000, "STMDB",
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0, BDT, 0x08000000, "STMDA",
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0, BDT, 0x09800000, "STMIB",
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0, BDT, 0x08800000, "STMIA",
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0, BDT, 0x09000000, "STMFD",
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0, BDT, 0x09800000, "STMFA",
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0, BDT, 0x08000000, "STMED",
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0, BDT, 0x08800000, "STMEA",
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0, SWI, 0, "SWI",
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0, ADR, 0, "ADR",
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110
mach/arm/as/mach4.c
Normal file
110
mach/arm/as/mach4.c
Normal file
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operation : BRANCH optlink expr
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{branch($1, $2, $3.val);}
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| DATA1 optcond opts optp REG ',' REG ',' operand
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{data($1,$2|$3|$4|$5<<12|$7<<16,$9.val,$9.typ);}
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| DATA2 optcond opts optp REG ',' operand
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{data($1,$2|$3|$4|$5<<12,$7.val,$7.typ);}
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| DATA3 optcond opts optp REG ',' operand
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{data($1,$2|$3|$4|$5<<16,$7.val,$7.typ);}
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| SDT optcond optb optt REG ',' address
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{emit4($1|$2|$3|$4|$5<<12|$7);}
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| BDT optcond REG optexc ',' reglist optpsr
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{emit4($1|$2|$3<<16|$4|$6|$7);}
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| SWI optcond expr
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{emit4($1|$2);}
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| ADR REG ',' expr
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{calcadr($2, $4.val, $4.typ);}
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;
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optlink : {$$=0;}
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| LINK
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{$$=$1;}
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;
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optcond : {$$=0xE0000000;}
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| COND
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{$$=$1;}
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;
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opts : {$$=0;}
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| SET
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{$$=$1;}
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;
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optt : {$$=0;}
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| TRANS
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{$$=$1;}
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;
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optp : {$$=0;}
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| PEE
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{$$=$1;}
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;
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optb : {$$=0;}
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| BYTE
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{$$=$1;}
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;
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optexc : {$$=0;}
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| '<'
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{$$=0x00200000;}
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;
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optpsr : {$$=0;}
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| '^'
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{$$=0x00400000;}
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;
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operand : REG optshift
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{$$.val = $1|$2; $$.typ = S_REG;}
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| '#'expr
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{$$ = $2;}
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;
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optshift : ',' SHIFT shftcnt
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{$$ = $2|$3;}
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| ',' RXX
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{$$ = $2;}
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{$$ = 0;}
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;
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shftcnt : '#' expr
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{$$ = calcshft($2.val, $2.typ, $<y_word>0);}
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| REG
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{$$ = $1<<8|0x10;}
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;
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address : expr
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{$$ = 0x01000000|calcaddress($1.val,$1.typ,$<y_word>-1);}
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| '[' REG ']'
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{$$ = 0x01000000|$2<<16;}
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| '[' REG ',' offset ']' optexc
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{$$ = $2<<16|$4|$6|0x01000000;}
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| '[' REG ']' ',' offset
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{$$ = $2<<16|$5;}
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;
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offset : '#' expr
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{$$ = calcoffset($2.val);}
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| optsign REG optshift
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{$$ = 0x02000000|$1|$2|$3;}
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;
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optsign : {$$ = 0x00800000;}
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| '+'
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{$$ = 0x00800000;}
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| '-'
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{$$ = 0x0;}
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;
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reglist : '{' rlist '}'
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{$$ = $2;}
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;
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rlist : REG
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{$$ = 1<<$1;}
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| rlist ',' REG
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{$$ = $1|1<<$3;}
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;
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249
mach/arm/as/mach5.c
Normal file
249
mach/arm/as/mach5.c
Normal file
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branch(brtyp, link, val)
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word_t brtyp;
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word_t link;
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valu_t val;
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{
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valu_t offset;
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offset = val - DOTVAL - 8;
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if ((offset & 0xFC000000) != 0 && (offset & 0xFC000000) != 0xFC000000){
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serror("offset out of range");
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}
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offset = offset>>2 & 0xFFFFFF;
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emit4(brtyp|link|offset);
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return;
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}
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data(opc, ins, val, typ)
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word_t opc, ins;
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valu_t val;
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short typ;
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{
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valu_t tmpval;
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if (typ == S_REG){
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emit4(opc|ins|val);
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return;
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}
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ins |= 0x02000000;
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tmpval = val;
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if (typ == S_ABS){
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if (calcimm(&opc, &tmpval, typ)){
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emit4(opc|ins|tmpval);
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return;
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}
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}
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tmpval = val;
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if (small(calcimm(&opc, &tmpval, typ),12)){
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emit4(opc|ins|tmpval);
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return;
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}
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switch (opc){
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case MOV:
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if (small((val & 0xF0000000) == 0xF0000000, 8)){
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emit4(0xE51F0004 | (ins & 0xF000));
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emit4(val);
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return;
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}
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if (small(1,4)){
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emit4(0xE51F0000 | (ins & 0xF000));
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emit4(0xEA000000);
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emit4(val);
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return;
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}
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DOTVAL += 16;
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return;
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case ADD:
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if (small((val & 0xF0000000) == 0xF0000000, 4)){
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emit4(0xE51F0004 | (ins & 0xF000));
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emit4(val);
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emit4(0xE2800000 | (ins&0xFF000) | (ins&0xF000)>>12);
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return;
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}
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emit4(0xE51F0000 | (ins & 0xF000));
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emit4(0xEA000000);
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emit4(val);
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emit4(0xE2800000 | (ins&0xFF000) | (ins&0xF000)>>12);
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return;
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default:
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if (pass == PASS_1)
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DOTVAL += 16;
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else
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serror("immediate value out of range");
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return;
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}
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}
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calcimm(opc,val,typ)
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word_t *opc;
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valu_t *val;
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short typ;
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{
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int i = 0;
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if (typ == S_UND) return 0;
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if ((*val & ~0xFF) == 0) return 1;
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if ((~*val & ~0xFF) == 0){
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switch (*opc){
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case AND:
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*val = ~*val;
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*opc = BIC;
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return 1;
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case MOV:
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*val = ~*val;
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*opc = MVN;
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return 1;
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case ADC:
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*val = ~*val;
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*opc = SBC;
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return 1;
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default :
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break;
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}
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}
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if ((-1**val & ~0xFF) == 0 ){
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switch (*opc){
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case ADD:
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*val *= -1;
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*opc = SUB;
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return 1;
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case CMP:
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*val *= -1;
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*opc = CMN;
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return 1;
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default:
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break;
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}
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}
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do{
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rotateleft2(&*val);
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i++;
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if((*val & ~0xFF) == 0){
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*val = *val|i<<8;
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return 1;
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}
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if ((~*val & ~0xFF) == 0){
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switch (*opc){
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case AND:
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*val = ~*val|i<<8;
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*opc = BIC;
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return 1;
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case MOV:
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*val = ~*val|i<<8;
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*opc = MVN;
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return 1;
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case ADC:
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*val = ~*val|i<<8;
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*opc = SBC;
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return 1;
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default :
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break;
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}
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}
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}while(i<15);
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return 0;
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}
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word_t
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calcoffset(val)
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valu_t val;
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{
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if((val & ~0xFFF) == 0)
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return(val|0x00800000);
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val *= -1;
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if((val & ~0xFFF) == 0)
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return(val);
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serror("offset out of range");
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return(0);
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}
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word_t
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calcaddress(val,typ,reg)
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valu_t val;
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short typ;
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word_t reg;
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{
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int tmpval;
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if (typ == S_UND){
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DOTVAL += 8;
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return 0;
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}
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tmpval = val - DOTVAL - 8;
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if(small((tmpval & ~0xFFF) == 0, 8))
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return(val|0x008F0000);
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tmpval *= -1;
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if(small((tmpval & ~0xFFF) == 0, 8))
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return(val|0x000F0000);
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emit4(0xE51F0004 | reg << 12);
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emit4(val | 0xF0000000);
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return(reg << 16);
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}
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word_t
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calcadr(reg, val, typ)
|
||||
word_t reg;
|
||||
valu_t val;
|
||||
short typ;
|
||||
{
|
||||
valu_t tmpval = val;
|
||||
int i = 0;
|
||||
|
||||
if ((val & 0xFC000000) && (typ != S_UND)){
|
||||
serror("address out of range");
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (typ != S_ABS){
|
||||
tmpval = val-DOTVAL-8;
|
||||
if (small((tmpval & ~0xFF) == 0),12){
|
||||
emit4(0xE2000000|ADD|0xF<<16|reg<<12|tmpval);
|
||||
return 0;
|
||||
}
|
||||
|
||||
tmpval *= -1;
|
||||
if (small((tmpval & ~0xFF) == 0), 12){
|
||||
emit4(0xE2000000|SUB|0xF<<16|reg<<12|tmpval);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
data(MOV, 0xE2000000||reg<<12, val, typ);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
word_t
|
||||
calcshft(val, typ, styp)
|
||||
valu_t val;
|
||||
short typ;
|
||||
word_t styp;
|
||||
{
|
||||
if (typ=S_UND) return 0;
|
||||
if (val & ~0x1F) serror("shiftcount out of range");
|
||||
if (styp && !val) warning("shiftcount 0");
|
||||
return((val & 0x1F)<<7);
|
||||
}
|
||||
|
||||
rotateleft2(x)
|
||||
long *x;
|
||||
{
|
||||
unsigned long bits;
|
||||
|
||||
bits = *x & 0xC0000000;
|
||||
*x <<= 2 ;
|
||||
if (bits){
|
||||
bits >>= 30;
|
||||
*x |= bits;
|
||||
}
|
||||
return;
|
||||
}
|
||||
Loading…
Add table
Reference in a new issue