mirror of https://github.com/mgba-emu/mgba.git
Separate out ISA files
This commit is contained in:
Jeffrey Pfau
parent
b02fdd3dda
commit
4bba75dd0a
728
src/arm.c
728
src/arm.c
|
|
@ -1,18 +1,9 @@
|
|||
#include "arm.h"
|
||||
|
||||
#define ARM_SIGN(I) ((I) >> 31)
|
||||
#define ARM_ROR(I, ROTATE) (((I) >> ROTATE) | (I << (32 - ROTATE)))
|
||||
#include "isa-inlines.h"
|
||||
|
||||
static inline void _ARMSetMode(struct ARMCore*, enum ExecutionMode);
|
||||
static ARMInstruction _ARMLoadInstructionARM(struct ARMMemory*, uint32_t address, uint32_t* opcodeOut);
|
||||
static ARMInstruction _ARMLoadInstructionThumb(struct ARMMemory*, uint32_t address, uint32_t* opcodeOut);
|
||||
static inline enum RegisterBank _ARMSelectBank(enum PrivilegeMode);
|
||||
|
||||
static inline void _ARMReadCPSR(struct ARMCore* cpu) {
|
||||
_ARMSetMode(cpu, cpu->cpsr.t);
|
||||
ARMSetPrivilegeMode(cpu, cpu->cpsr.priv);
|
||||
}
|
||||
|
||||
void ARMSetPrivilegeMode(struct ARMCore* cpu, enum PrivilegeMode mode) {
|
||||
if (mode == cpu->privilegeMode) {
|
||||
// Not switching modes after all
|
||||
|
|
@ -49,10 +40,6 @@ void ARMSetPrivilegeMode(struct ARMCore* cpu, enum PrivilegeMode mode) {
|
|||
cpu->privilegeMode = mode;
|
||||
}
|
||||
|
||||
static inline int _ARMModeHasSPSR(enum PrivilegeMode mode) {
|
||||
return mode != MODE_SYSTEM && mode != MODE_USER;
|
||||
}
|
||||
|
||||
static inline enum RegisterBank _ARMSelectBank(enum PrivilegeMode mode) {
|
||||
switch (mode) {
|
||||
case MODE_USER:
|
||||
|
|
@ -75,52 +62,6 @@ static inline enum RegisterBank _ARMSelectBank(enum PrivilegeMode mode) {
|
|||
}
|
||||
}
|
||||
|
||||
// Addressing mode 1
|
||||
static inline void _barrelShift(struct ARMCore* cpu, uint32_t opcode) {
|
||||
// TODO
|
||||
}
|
||||
|
||||
static inline void _immediate(struct ARMCore* cpu, uint32_t opcode) {
|
||||
int rotate = (opcode & 0x00000F00) >> 7;
|
||||
int immediate = opcode & 0x000000FF;
|
||||
if (!rotate) {
|
||||
cpu->shifterOperand = immediate;
|
||||
cpu->shifterCarryOut = cpu->cpsr.c;
|
||||
} else {
|
||||
cpu->shifterOperand = ARM_ROR(immediate, rotate);
|
||||
cpu->shifterCarryOut = ARM_SIGN(cpu->shifterOperand);
|
||||
}
|
||||
}
|
||||
|
||||
static const ARMInstruction _armTable[0x1000];
|
||||
|
||||
static inline void _ARMSetMode(struct ARMCore* cpu, enum ExecutionMode executionMode) {
|
||||
if (executionMode == cpu->executionMode) {
|
||||
return;
|
||||
}
|
||||
|
||||
cpu->executionMode = executionMode;
|
||||
switch (executionMode) {
|
||||
case MODE_ARM:
|
||||
cpu->cpsr.t = 0;
|
||||
break;
|
||||
case MODE_THUMB:
|
||||
cpu->cpsr.t = 1;
|
||||
}
|
||||
}
|
||||
|
||||
static ARMInstruction _ARMLoadInstructionARM(struct ARMMemory* memory, uint32_t address, uint32_t* opcodeOut) {
|
||||
uint32_t opcode = memory->load32(memory, address);
|
||||
*opcodeOut = opcode;
|
||||
return _armTable[((opcode >> 16) & 0xFF0) | ((opcode >> 4) & 0x00F)];
|
||||
}
|
||||
|
||||
static ARMInstruction _ARMLoadInstructionThumb(struct ARMMemory* memory, uint32_t address, uint32_t* opcodeOut) {
|
||||
uint16_t opcode = memory->loadU16(memory, address);
|
||||
*opcodeOut = opcode;
|
||||
return 0;
|
||||
}
|
||||
|
||||
void ARMInit(struct ARMCore* cpu) {
|
||||
cpu->memory = 0;
|
||||
cpu->board = 0;
|
||||
|
|
@ -165,670 +106,3 @@ void ARMReset(struct ARMCore* cpu) {
|
|||
cpu->board->reset(cpu->board);
|
||||
}
|
||||
|
||||
#define ARM_COND_EQ (cpu->cpsr.z)
|
||||
#define ARM_COND_NE (!cpu->cpsr.z)
|
||||
#define ARM_COND_CS (cpu->cpsr.c)
|
||||
#define ARM_COND_CC (!cpu->cpsr.c)
|
||||
#define ARM_COND_MI (cpu->cpsr.n)
|
||||
#define ARM_COND_PL (!cpu->cpsr.n)
|
||||
#define ARM_COND_VS (cpu->cpsr.v)
|
||||
#define ARM_COND_VC (!cpu->cpsr.v)
|
||||
#define ARM_COND_HI (cpu->cpsr.c && !cpu->cpsr.z)
|
||||
#define ARM_COND_LS (!cpu->cpsr.c || cpu->cpsr.z)
|
||||
#define ARM_COND_GE (!cpu->cpsr.n == !cpu->cpsr.v)
|
||||
#define ARM_COND_LT (!cpu->cpsr.n != !cpu->cpsr.v)
|
||||
#define ARM_COND_GT (!cpu->cpsr.z && !cpu->cpsr.n == !cpu->cpsr.v)
|
||||
#define ARM_COND_LE (cpu->cpsr.z || !cpu->cpsr.n != !cpu->cpsr.v)
|
||||
#define ARM_COND_AL 1
|
||||
|
||||
void ARMStep(struct ARMCore* cpu) {
|
||||
// TODO
|
||||
uint32_t opcode;
|
||||
ARMInstruction instruction = _ARMLoadInstructionARM(cpu->memory, cpu->gprs[ARM_PC] - WORD_SIZE_ARM, &opcode);
|
||||
cpu->gprs[ARM_PC] += WORD_SIZE_ARM;
|
||||
|
||||
int condition = opcode >> 28;
|
||||
if (condition == 0xE) {
|
||||
instruction(cpu, opcode);
|
||||
} else {
|
||||
switch (condition) {
|
||||
case 0x0:
|
||||
if (!ARM_COND_EQ) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x1:
|
||||
if (!ARM_COND_NE) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x2:
|
||||
if (!ARM_COND_CS) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x3:
|
||||
if (!ARM_COND_CC) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x4:
|
||||
if (!ARM_COND_MI) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x5:
|
||||
if (!ARM_COND_PL) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x6:
|
||||
if (!ARM_COND_VS) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x7:
|
||||
if (!ARM_COND_VC) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x8:
|
||||
if (!ARM_COND_HI) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x9:
|
||||
if (!ARM_COND_LS) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0xA:
|
||||
if (!ARM_COND_GE) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0xB:
|
||||
if (!ARM_COND_LT) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0xC:
|
||||
if (!ARM_COND_GT) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0xD:
|
||||
if (!ARM_COND_GE) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
instruction(cpu, opcode);
|
||||
}
|
||||
|
||||
// Instruction definitions
|
||||
// Beware pre-processor antics
|
||||
|
||||
#define ARM_CARRY_FROM(M, N, D) ((ARM_SIGN((M) | (N))) && !(ARM_SIGN(D)))
|
||||
#define ARM_BORROW_FROM(M, N, D) (((uint32_t) (M)) >= ((uint32_t) (N)))
|
||||
#define ARM_V_ADDITION(M, N, D) (!(ARM_SIGN((M) ^ (N))) && (ARM_SIGN((M) ^ (D))) && (ARM_SIGN((N) ^ (D))))
|
||||
#define ARM_V_SUBTRACTION(M, N, D) ((ARM_SIGN((M) ^ (N))) && (ARM_SIGN((M) ^ (D))))
|
||||
|
||||
#define ARM_WRITE_PC \
|
||||
cpu->gprs[ARM_PC] = (cpu->gprs[ARM_PC] & -WORD_SIZE_ARM) + WORD_SIZE_ARM
|
||||
|
||||
#define ARM_ADDITION_S(M, N, D) \
|
||||
if (rd == ARM_PC && _ARMModeHasSPSR(cpu->cpsr.priv)) { \
|
||||
cpu->cpsr = cpu->spsr; \
|
||||
_ARMReadCPSR(cpu); \
|
||||
} else { \
|
||||
cpu->cpsr.n = ARM_SIGN(D); \
|
||||
cpu->cpsr.z = !(D); \
|
||||
cpu->cpsr.c = ARM_CARRY_FROM(M, N, D); \
|
||||
cpu->cpsr.v = ARM_V_ADDITION(M, N, D); \
|
||||
}
|
||||
|
||||
#define ARM_SUBTRACTION_S(M, N, D) \
|
||||
if (rd == ARM_PC && _ARMModeHasSPSR(cpu->cpsr.priv)) { \
|
||||
cpu->cpsr = cpu->spsr; \
|
||||
_ARMReadCPSR(cpu); \
|
||||
} else { \
|
||||
cpu->cpsr.n = ARM_SIGN(D); \
|
||||
cpu->cpsr.z = !(D); \
|
||||
cpu->cpsr.c = ARM_BORROW_FROM(M, N, D); \
|
||||
cpu->cpsr.v = ARM_V_SUBTRACTION(M, N, D); \
|
||||
}
|
||||
|
||||
#define ARM_NEUTRAL_S(M, N, D) \
|
||||
if (rd == ARM_PC && _ARMModeHasSPSR(cpu->cpsr.priv)) { \
|
||||
cpu->cpsr = cpu->spsr; \
|
||||
_ARMReadCPSR(cpu); \
|
||||
} else { \
|
||||
cpu->cpsr.n = ARM_SIGN(D); \
|
||||
cpu->cpsr.z = !(D); \
|
||||
cpu->cpsr.c = cpu->shifterCarryOut; \
|
||||
}
|
||||
|
||||
#define ADDR_MODE_2_ADDRESS (address)
|
||||
#define ADDR_MODE_2_RN (cpu->gprs[rn])
|
||||
#define ADDR_MODE_2_RM (cpu->gprs[rm])
|
||||
#define ADDR_MODE_2_IMMEDIATE (opcode & 0x00000FFF)
|
||||
#define ADDR_MODE_2_INDEX(U_OP, M) (cpu->gprs[rn] U_OP M)
|
||||
#define ADDR_MODE_2_WRITEBACK(ADDR) (cpu->gprs[rn] = ADDR)
|
||||
#define ADDR_MODE_2_LSL(I) (cpu->gprs[rm] << I)
|
||||
#define ADDR_MODE_2_LSR(I) (I ? ((uint32_t) cpu->gprs[rm]) >> I : 0)
|
||||
#define ADDR_MODE_2_ASR(I) (I ? ((int32_t) cpu->gprs[rm]) >> I : ((int32_t) cpu->gprs[rm]) >> 31)
|
||||
#define ADDR_MODE_2_ROR(I) (I ? ARM_ROR(cpu->gprs[rm], I) : (cpu->cpsr.c << 31) | (((uint32_t) cpu->gprs[rm]) >> 1))
|
||||
|
||||
#define ADDR_MODE_3_ADDRESS ADDR_MODE_2_ADDRESS
|
||||
#define ADDR_MODE_3_RN ADDR_MODE_2_RN
|
||||
#define ADDR_MODE_3_RM ADDR_MODE_2_RM
|
||||
#define ADDR_MODE_3_IMMEDIATE ADDR_MODE_2_IMMEDIATE
|
||||
#define ADDR_MODE_3_INDEX(U_OP, M) ADDR_MODE_2_INDEX(U_OP, M)
|
||||
#define ADDR_MODE_3_WRITEBACK(ADDR) ADDR_MODE_2_WRITEBACK(ADDR)
|
||||
|
||||
#define DEFINE_INSTRUCTION_ARM(NAME, BODY) \
|
||||
static void _ARMInstruction ## NAME (struct ARMCore* cpu, uint32_t opcode) { \
|
||||
BODY; \
|
||||
}
|
||||
|
||||
#define DEFINE_ALU_INSTRUCTION_EX_ARM(NAME, S_BODY, SHIFTER, BODY, POST_BODY) \
|
||||
DEFINE_INSTRUCTION_ARM(NAME, \
|
||||
int rd = (opcode >> 12) & 0xF; \
|
||||
int rn = (opcode >> 16) & 0xF; \
|
||||
SHIFTER(cpu, opcode); \
|
||||
BODY; \
|
||||
S_BODY; \
|
||||
POST_BODY; \
|
||||
if (rd == ARM_PC) { \
|
||||
ARM_WRITE_PC; \
|
||||
})
|
||||
|
||||
#define DEFINE_ALU_INSTRUCTION_ARM(NAME, S_BODY, BODY, POST_BODY) \
|
||||
DEFINE_ALU_INSTRUCTION_EX_ARM(NAME, , _barrelShift, BODY, POST_BODY) \
|
||||
DEFINE_ALU_INSTRUCTION_EX_ARM(NAME ## S, S_BODY, _barrelShift, BODY, POST_BODY) \
|
||||
DEFINE_ALU_INSTRUCTION_EX_ARM(NAME ## I, , _immediate, BODY, POST_BODY) \
|
||||
DEFINE_ALU_INSTRUCTION_EX_ARM(NAME ## SI, S_BODY, _immediate, BODY, POST_BODY)
|
||||
|
||||
#define DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME, ADDRESS, WRITEBACK, BODY) \
|
||||
DEFINE_INSTRUCTION_ARM(NAME, \
|
||||
uint32_t address; \
|
||||
int rn = (opcode >> 16) & 0xF; \
|
||||
int rd = (opcode >> 12) & 0xF; \
|
||||
int rm = opcode & 0xF; \
|
||||
address = ADDRESS; \
|
||||
BODY; \
|
||||
WRITEBACK;)
|
||||
|
||||
#define DEFINE_LOAD_STORE_INSTRUCTION_SHIFTER_ARM(NAME, SHIFTER, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME, SHIFTER(ADDR_MODE_2_RN), ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_INDEX(-, ADDR_MODE_2_RM)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## U, SHIFTER(ADDR_MODE_2_RN), ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_INDEX(+, ADDR_MODE_2_RM)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## P, ADDR_MODE_2_INDEX(-, SHIFTER(ADDR_MODE_2_RM)), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## PW, ADDR_MODE_2_INDEX(-, SHIFTER(ADDR_MODE_2_RM)), ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_ADDRESS), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## PU, ADDR_MODE_2_INDEX(+, SHIFTER(ADDR_MODE_2_RM)), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## PUW, ADDR_MODE_2_INDEX(+, SHIFTER(ADDR_MODE_2_RM)), ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_ADDRESS), BODY)
|
||||
|
||||
|
||||
#define DEFINE_LOAD_STORE_INSTRUCTION_ARM(NAME, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_SHIFTER_ARM(NAME ## _LSL_, ADDR_MODE_2_LSL, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_SHIFTER_ARM(NAME ## _LSR_, ADDR_MODE_2_LSR, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_SHIFTER_ARM(NAME ## _ASR_, ADDR_MODE_2_ASR, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_SHIFTER_ARM(NAME ## _ROR_, ADDR_MODE_2_ROR, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## I, ADDR_MODE_2_RN, ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_INDEX(-, ADDR_MODE_2_IMMEDIATE)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IU, ADDR_MODE_2_RN, ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_INDEX(+, ADDR_MODE_2_IMMEDIATE)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IP, ADDR_MODE_2_INDEX(-, ADDR_MODE_2_IMMEDIATE), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IPW, ADDR_MODE_2_INDEX(-, ADDR_MODE_2_IMMEDIATE), ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_ADDRESS), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IPU, ADDR_MODE_2_INDEX(+, ADDR_MODE_2_IMMEDIATE), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IPUW, ADDR_MODE_2_INDEX(+, ADDR_MODE_2_IMMEDIATE), ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_ADDRESS), BODY) \
|
||||
|
||||
#define DEFINE_LOAD_STORE_MODE_3_INSTRUCTION_ARM(NAME, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME, ADDR_MODE_3_RN, ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_INDEX(-, ADDR_MODE_3_RM)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## U, ADDR_MODE_3_RN, ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_INDEX(+, ADDR_MODE_3_RM)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## P, ADDR_MODE_3_INDEX(-, ADDR_MODE_3_RM), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## PW, ADDR_MODE_3_INDEX(-, ADDR_MODE_3_RM), ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_ADDRESS), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## PU, ADDR_MODE_3_INDEX(+, ADDR_MODE_3_RM), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## PUW, ADDR_MODE_3_INDEX(+, ADDR_MODE_3_RM), ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_ADDRESS), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## I, ADDR_MODE_3_RN, ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_INDEX(-, ADDR_MODE_3_IMMEDIATE)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IU, ADDR_MODE_3_RN, ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_INDEX(+, ADDR_MODE_3_IMMEDIATE)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IP, ADDR_MODE_3_INDEX(-, ADDR_MODE_3_IMMEDIATE), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IPW, ADDR_MODE_3_INDEX(-, ADDR_MODE_3_IMMEDIATE), ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_ADDRESS), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IPU, ADDR_MODE_3_INDEX(+, ADDR_MODE_3_IMMEDIATE), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IPUW, ADDR_MODE_3_INDEX(+, ADDR_MODE_3_IMMEDIATE), ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_ADDRESS), BODY) \
|
||||
|
||||
// TODO
|
||||
#define DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME, ADDRESS, S_PRE, S_POST, BODY) \
|
||||
DEFINE_INSTRUCTION_ARM(NAME, \
|
||||
BODY;)
|
||||
|
||||
#define DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_ARM(NAME, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## DA, ADDR_MODE_4_DA, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## DAW, ADDR_MODE_4_DAW, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## DB, ADDR_MODE_4_DB, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## DBW, ADDR_MODE_4_DBW, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## IA, ADDR_MODE_4_IA, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## IAW, ADDR_MODE_4_IAW, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## IB, ADDR_MODE_4_IB, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## IBW, ADDR_MODE_4_IBW, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SDA, ADDR_MODE_4_DA, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SDAW, ADDR_MODE_4_DAW, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SDB, ADDR_MODE_4_DB, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SDBW, ADDR_MODE_4_DBW, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SIA, ADDR_MODE_4_IA, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SIAW, ADDR_MODE_4_IAW, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SIB, ADDR_MODE_4_IB, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SIBW, ADDR_MODE_4_IBW, S_PRE, S_POST, BODY)
|
||||
|
||||
// Begin ALU definitions
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(ADD, ARM_ADDITION_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = cpu->gprs[rn] + cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(ADC, ARM_ADDITION_S(cpu->gprs[rn], shifterOperand, cpu->gprs[rd]), \
|
||||
int32_t shifterOperand = cpu->shifterOperand + cpu->cpsr.c; \
|
||||
cpu->gprs[rd] = cpu->gprs[rn] + shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(AND, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = cpu->gprs[rn] & cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(BIC, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = cpu->gprs[rn] & ~cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(CMN, ARM_ADDITION_S(cpu->gprs[rn], cpu->shifterOperand, aluOut), \
|
||||
int32_t aluOut = cpu->gprs[rn] + cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(CMP, ARM_SUBTRACTION_S(cpu->gprs[rn], cpu->shifterOperand, aluOut), \
|
||||
int32_t aluOut = cpu->gprs[rn] - cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(EOR, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = cpu->gprs[rn] ^ cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(MOV, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(MVN, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = ~cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(ORR, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = cpu->gprs[rn] | cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(RSB, ARM_SUBTRACTION_S(cpu->shifterOperand, cpu->gprs[rn], d), \
|
||||
int32_t d = cpu->shifterOperand - cpu->gprs[rn];, cpu->gprs[rd] = d)
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(RSC, ARM_SUBTRACTION_S(cpu->shifterOperand, n, d), \
|
||||
int32_t n = cpu->gprs[rn] + !cpu->cpsr.c; \
|
||||
int32_t d = cpu->shifterOperand - n;, cpu->gprs[rd] = d)
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(SBC, ARM_SUBTRACTION_S(cpu->gprs[rn], shifterOperand, d), \
|
||||
int32_t shifterOperand = cpu->shifterOperand + !cpu->cpsr.c; \
|
||||
int32_t d = cpu->gprs[rn] - shifterOperand;, cpu->gprs[rd] = d)
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(SUB, ARM_SUBTRACTION_S(cpu->gprs[rn], cpu->shifterOperand, d), \
|
||||
int32_t d = cpu->gprs[rn] - cpu->shifterOperand;, cpu->gprs[rd] = d)
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(TEQ, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, aluOut), \
|
||||
int32_t aluOut = cpu->gprs[rn] ^ cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(TST, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, aluOut), \
|
||||
int32_t aluOut = cpu->gprs[rn] & cpu->shifterOperand;, )
|
||||
|
||||
// End ALU definitions
|
||||
|
||||
// Begin multiply definitions
|
||||
|
||||
DEFINE_INSTRUCTION_ARM(MLA,)
|
||||
DEFINE_INSTRUCTION_ARM(MLAS,)
|
||||
DEFINE_INSTRUCTION_ARM(MUL,)
|
||||
DEFINE_INSTRUCTION_ARM(MULS,)
|
||||
DEFINE_INSTRUCTION_ARM(SMLAL,)
|
||||
DEFINE_INSTRUCTION_ARM(SMLALS,)
|
||||
DEFINE_INSTRUCTION_ARM(SMULL,)
|
||||
DEFINE_INSTRUCTION_ARM(SMULLS,)
|
||||
DEFINE_INSTRUCTION_ARM(UMLAL,)
|
||||
DEFINE_INSTRUCTION_ARM(UMLALS,)
|
||||
DEFINE_INSTRUCTION_ARM(UMULL,)
|
||||
DEFINE_INSTRUCTION_ARM(UMULLS,)
|
||||
|
||||
// End multiply definitions
|
||||
|
||||
// Begin load/store definitions
|
||||
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(LDR, cpu->gprs[rd] = cpu->memory->load32(cpu->memory, address))
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(LDRB, cpu->gprs[rd] = cpu->memory->loadU8(cpu->memory, address))
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(LDRBT,)
|
||||
DEFINE_LOAD_STORE_MODE_3_INSTRUCTION_ARM(LDRH, cpu->gprs[rd] = cpu->memory->loadU16(cpu->memory, address))
|
||||
DEFINE_LOAD_STORE_MODE_3_INSTRUCTION_ARM(LDRSB, cpu->gprs[rd] = cpu->memory->load8(cpu->memory, address))
|
||||
DEFINE_LOAD_STORE_MODE_3_INSTRUCTION_ARM(LDRSH, cpu->gprs[rd] = cpu->memory->load16(cpu->memory, address))
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(LDRT,)
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(STR, cpu->memory->store32(cpu->memory, address, cpu->gprs[rd]))
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(STRB, cpu->memory->store8(cpu->memory, address, cpu->gprs[rd]))
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(STRBT,)
|
||||
DEFINE_LOAD_STORE_MODE_3_INSTRUCTION_ARM(STRH, cpu->memory->store16(cpu->memory, address, cpu->gprs[rd]))
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(STRT,)
|
||||
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_ARM(LDM,)
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_ARM(STM,)
|
||||
|
||||
DEFINE_INSTRUCTION_ARM(SWP,)
|
||||
DEFINE_INSTRUCTION_ARM(SWPB,)
|
||||
|
||||
// End load/store definitions
|
||||
|
||||
// Begin branch definitions
|
||||
|
||||
DEFINE_INSTRUCTION_ARM(B, \
|
||||
int32_t offset = opcode << 8; \
|
||||
offset >>= 6; \
|
||||
cpu->gprs[ARM_PC] += offset; \
|
||||
ARM_WRITE_PC;)
|
||||
|
||||
DEFINE_INSTRUCTION_ARM(BL,)
|
||||
DEFINE_INSTRUCTION_ARM(BX,)
|
||||
|
||||
// End branch definitions
|
||||
|
||||
// TODO
|
||||
DEFINE_INSTRUCTION_ARM(ILL,) // Illegal opcode
|
||||
DEFINE_INSTRUCTION_ARM(MSR,)
|
||||
DEFINE_INSTRUCTION_ARM(MRS,)
|
||||
DEFINE_INSTRUCTION_ARM(MSRI,)
|
||||
DEFINE_INSTRUCTION_ARM(MRSI,)
|
||||
DEFINE_INSTRUCTION_ARM(SWI,)
|
||||
|
||||
#define DECLARE_INSTRUCTION_ARM(EMITTER, NAME) \
|
||||
EMITTER ## NAME
|
||||
|
||||
#define DO_8(DIRECTIVE) \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE
|
||||
|
||||
#define DO_256(DIRECTIVE) \
|
||||
DO_8(DO_8(DIRECTIVE)), \
|
||||
DO_8(DO_8(DIRECTIVE)), \
|
||||
DO_8(DO_8(DIRECTIVE)), \
|
||||
DO_8(DO_8(DIRECTIVE))
|
||||
|
||||
#define DO_INTERLACE(LEFT, RIGHT) \
|
||||
LEFT, \
|
||||
RIGHT
|
||||
|
||||
#define DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ALU) \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, ALU ## I)), \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, ALU ## I))
|
||||
|
||||
#define DECLARE_ARM_ALU_BLOCK(EMITTER, ALU, EX1, EX2, EX3, EX4) \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, ALU)), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ALU), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, EX1), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ALU), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, EX2), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ALU), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, EX3), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ALU), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, EX4)
|
||||
|
||||
#define DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, NAME, P, U, W) \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## I ## P ## U ## W)), \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## I ## P ## U ## W))
|
||||
|
||||
#define DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, NAME, P, U, W) \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _LSL_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _LSR_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _ASR_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _ROR_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _LSL_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _LSR_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _ASR_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _ROR_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL)
|
||||
|
||||
#define DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, NAME, MODE, W) \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## MODE ## W)), \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## MODE ## W))
|
||||
|
||||
#define DECLARE_ARM_BRANCH_BLOCK(EMITTER, NAME) \
|
||||
DO_256(DECLARE_INSTRUCTION_ARM(EMITTER, NAME))
|
||||
|
||||
// TODO: Support coprocessors
|
||||
#define DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, NAME, P, U, W, N) \
|
||||
DO_8(0), \
|
||||
DO_8(0)
|
||||
|
||||
#define DECLARE_ARM_COPROCESSOR_BLOCK(EMITTER, NAME1, NAME2) \
|
||||
DO_8(DO_8(DO_INTERLACE(0, 0))), \
|
||||
DO_8(DO_8(DO_INTERLACE(0, 0)))
|
||||
|
||||
#define DECLARE_ARM_SWI_BLOCK(EMITTER) \
|
||||
DO_256(DECLARE_INSTRUCTION_ARM(EMITTER, SWI))
|
||||
|
||||
#define DECLARE_EMITTER_BLOCK(EMITTER) \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, AND, MUL, STRH, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ANDS, MULS, LDRH, LDRSB, LDRSH), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, EOR, MLA, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, EORS, MLAS, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, SUB, ILL, STRHI, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, SUBS, ILL, LDRHI, LDRSBI, LDRSHI), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, RSB, ILL, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, RSBS, ILL, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ADD, UMULL, STRHU, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ADDS, UMULLS, LDRHU, LDRSBU, LDRSHU), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ADC, UMLAL, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ADCS, UMLALS, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, SBC, SMULL, STRHIU, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, SBCS, SMULLS, LDRHIU, LDRSBIU, LDRSHIU), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, RSC, SMLAL, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, RSCS, SMLALS, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MRS, SWP, STRHP, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, TST, ILL, LDRHP, LDRSBP, LDRSHP), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, MSR), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, BX), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, STRHPW), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, TEQ, ILL, LDRHPW, LDRSBPW, LDRSHPW), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MRS, SWPB, STRHIP, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, CMP, ILL, LDRHIP, LDRSBIP, LDRSHIP), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MSR, ILL, STRHIPW, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, CMN, ILL, LDRHIPW, LDRSBIPW, LDRSHIPW), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ORR, SMLAL, STRHPU, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ORRS, SMLALS, LDRHPU, LDRSBPU, LDRSHPU), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MOV, SMLAL, STRHPUW, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MOVS, SMLALS, LDRHPUW, LDRSBPUW, LDRSHPUW), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, BIC, SMLAL, STRHIPU, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, BICS, SMLALS, LDRHIPU, LDRSBIPU, LDRSHIPU), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MVN, SMLAL, STRHIPUW, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MVNS, SMLALS, LDRHIPUW, LDRSBIPUW, LDRSHIPUW), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, AND), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ANDS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, EOR), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, EORS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, SUB), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, SUBS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, RSB), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, RSBS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ADD), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ADDS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ADC), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ADCS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, SBC), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, SBCS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, RSC), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, RSCS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MRS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, TST), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MSR), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, TEQ), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MRS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, CMP), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MSR), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, CMN), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ORR), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ORRS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MOV), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MOVS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, BIC), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, BICS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MVN), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MVNS), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STR, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDR, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRB, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRB, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRBT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRBT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STR, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDR, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRB, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRB, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRBT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRBT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STR, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDR, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STR, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDR, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRB, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRB, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRB, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRB, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STR, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDR, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STR, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDR, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRB, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRB, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRB, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRB, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STR, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDR, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRB, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRB, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRBT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRBT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STR, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDR, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRB, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRB, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRBT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRBT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STR, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDR, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STR, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDR, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRB, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRB, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRB, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRB, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STR, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDR, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STR, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDR, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRB, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRB, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRB, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRB, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, DA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, DA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, DA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, DA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, DA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, DA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, DA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, DA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, IA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, IA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, IA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, IA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, IA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, IA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, IA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, IA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, DB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, DB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, DB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, DB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, DB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, DB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, DB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, DB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, IB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, IB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, IB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, IB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, IB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, IB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, IB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, IB, W), \
|
||||
DECLARE_ARM_BRANCH_BLOCK(EMITTER, B), \
|
||||
DECLARE_ARM_BRANCH_BLOCK(EMITTER, BL), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , , , W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , , , W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , , N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , , N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , , N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , , N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , U, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , U, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , U, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , U, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , U, N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , U, N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , U, N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , U, N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, , , W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, , , W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, U, N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, U, N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, U, N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, U, N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, , N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, , N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, , N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, , N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, U, N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, U, N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, U, N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, U, N, W), \
|
||||
DECLARE_ARM_COPROCESSOR_BLOCK(EMITTER, CDP, MCR), \
|
||||
DECLARE_ARM_SWI_BLOCK(EMITTER)
|
||||
|
||||
static const ARMInstruction _armTable[0x1000] = {
|
||||
DECLARE_EMITTER_BLOCK(_ARMInstruction)
|
||||
};
|
||||
|
|
|
|||
|
|
@ -49,7 +49,6 @@ enum RegisterBank {
|
|||
};
|
||||
|
||||
struct ARMCore;
|
||||
typedef void (*ARMInstruction)(struct ARMCore*, uint32_t opcode);
|
||||
|
||||
union PSR {
|
||||
struct {
|
||||
|
|
@ -109,7 +108,6 @@ void ARMAssociateMemory(struct ARMCore* cpu, struct ARMMemory* memory);
|
|||
void ARMAssociateBoard(struct ARMCore* cpu, struct ARMBoard* board);
|
||||
|
||||
void ARMReset(struct ARMCore* cpu);
|
||||
void ARMStep(struct ARMCore* cpu);
|
||||
void ARMSetPrivilegeMode(struct ARMCore*, enum PrivilegeMode);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -0,0 +1,676 @@
|
|||
#include "isa-arm.h"
|
||||
|
||||
#include "arm.h"
|
||||
#include "isa-inlines.h"
|
||||
|
||||
// Addressing mode 1
|
||||
static inline void _barrelShift(struct ARMCore* cpu, uint32_t opcode) {
|
||||
// TODO
|
||||
}
|
||||
|
||||
static inline void _immediate(struct ARMCore* cpu, uint32_t opcode) {
|
||||
int rotate = (opcode & 0x00000F00) >> 7;
|
||||
int immediate = opcode & 0x000000FF;
|
||||
if (!rotate) {
|
||||
cpu->shifterOperand = immediate;
|
||||
cpu->shifterCarryOut = cpu->cpsr.c;
|
||||
} else {
|
||||
cpu->shifterOperand = ARM_ROR(immediate, rotate);
|
||||
cpu->shifterCarryOut = ARM_SIGN(cpu->shifterOperand);
|
||||
}
|
||||
}
|
||||
|
||||
static const ARMInstruction _armTable[0x1000];
|
||||
|
||||
static ARMInstruction _ARMLoadInstructionARM(struct ARMMemory* memory, uint32_t address, uint32_t* opcodeOut) {
|
||||
uint32_t opcode = memory->load32(memory, address);
|
||||
*opcodeOut = opcode;
|
||||
return _armTable[((opcode >> 16) & 0xFF0) | ((opcode >> 4) & 0x00F)];
|
||||
}
|
||||
|
||||
void ARMStep(struct ARMCore* cpu) {
|
||||
// TODO
|
||||
uint32_t opcode;
|
||||
ARMInstruction instruction = _ARMLoadInstructionARM(cpu->memory, cpu->gprs[ARM_PC] - WORD_SIZE_ARM, &opcode);
|
||||
cpu->gprs[ARM_PC] += WORD_SIZE_ARM;
|
||||
|
||||
int condition = opcode >> 28;
|
||||
if (condition == 0xE) {
|
||||
instruction(cpu, opcode);
|
||||
} else {
|
||||
switch (condition) {
|
||||
case 0x0:
|
||||
if (!ARM_COND_EQ) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x1:
|
||||
if (!ARM_COND_NE) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x2:
|
||||
if (!ARM_COND_CS) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x3:
|
||||
if (!ARM_COND_CC) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x4:
|
||||
if (!ARM_COND_MI) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x5:
|
||||
if (!ARM_COND_PL) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x6:
|
||||
if (!ARM_COND_VS) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x7:
|
||||
if (!ARM_COND_VC) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x8:
|
||||
if (!ARM_COND_HI) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0x9:
|
||||
if (!ARM_COND_LS) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0xA:
|
||||
if (!ARM_COND_GE) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0xB:
|
||||
if (!ARM_COND_LT) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0xC:
|
||||
if (!ARM_COND_GT) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case 0xD:
|
||||
if (!ARM_COND_GE) {
|
||||
return;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
instruction(cpu, opcode);
|
||||
}
|
||||
|
||||
// Instruction definitions
|
||||
// Beware pre-processor antics
|
||||
|
||||
#define ARM_WRITE_PC \
|
||||
cpu->gprs[ARM_PC] = (cpu->gprs[ARM_PC] & -WORD_SIZE_ARM) + WORD_SIZE_ARM
|
||||
|
||||
#define ARM_ADDITION_S(M, N, D) \
|
||||
if (rd == ARM_PC && _ARMModeHasSPSR(cpu->cpsr.priv)) { \
|
||||
cpu->cpsr = cpu->spsr; \
|
||||
_ARMReadCPSR(cpu); \
|
||||
} else { \
|
||||
cpu->cpsr.n = ARM_SIGN(D); \
|
||||
cpu->cpsr.z = !(D); \
|
||||
cpu->cpsr.c = ARM_CARRY_FROM(M, N, D); \
|
||||
cpu->cpsr.v = ARM_V_ADDITION(M, N, D); \
|
||||
}
|
||||
|
||||
#define ARM_SUBTRACTION_S(M, N, D) \
|
||||
if (rd == ARM_PC && _ARMModeHasSPSR(cpu->cpsr.priv)) { \
|
||||
cpu->cpsr = cpu->spsr; \
|
||||
_ARMReadCPSR(cpu); \
|
||||
} else { \
|
||||
cpu->cpsr.n = ARM_SIGN(D); \
|
||||
cpu->cpsr.z = !(D); \
|
||||
cpu->cpsr.c = ARM_BORROW_FROM(M, N, D); \
|
||||
cpu->cpsr.v = ARM_V_SUBTRACTION(M, N, D); \
|
||||
}
|
||||
|
||||
#define ARM_NEUTRAL_S(M, N, D) \
|
||||
if (rd == ARM_PC && _ARMModeHasSPSR(cpu->cpsr.priv)) { \
|
||||
cpu->cpsr = cpu->spsr; \
|
||||
_ARMReadCPSR(cpu); \
|
||||
} else { \
|
||||
cpu->cpsr.n = ARM_SIGN(D); \
|
||||
cpu->cpsr.z = !(D); \
|
||||
cpu->cpsr.c = cpu->shifterCarryOut; \
|
||||
}
|
||||
|
||||
#define ADDR_MODE_2_ADDRESS (address)
|
||||
#define ADDR_MODE_2_RN (cpu->gprs[rn])
|
||||
#define ADDR_MODE_2_RM (cpu->gprs[rm])
|
||||
#define ADDR_MODE_2_IMMEDIATE (opcode & 0x00000FFF)
|
||||
#define ADDR_MODE_2_INDEX(U_OP, M) (cpu->gprs[rn] U_OP M)
|
||||
#define ADDR_MODE_2_WRITEBACK(ADDR) (cpu->gprs[rn] = ADDR)
|
||||
#define ADDR_MODE_2_LSL(I) (cpu->gprs[rm] << I)
|
||||
#define ADDR_MODE_2_LSR(I) (I ? ((uint32_t) cpu->gprs[rm]) >> I : 0)
|
||||
#define ADDR_MODE_2_ASR(I) (I ? ((int32_t) cpu->gprs[rm]) >> I : ((int32_t) cpu->gprs[rm]) >> 31)
|
||||
#define ADDR_MODE_2_ROR(I) (I ? ARM_ROR(cpu->gprs[rm], I) : (cpu->cpsr.c << 31) | (((uint32_t) cpu->gprs[rm]) >> 1))
|
||||
|
||||
#define ADDR_MODE_3_ADDRESS ADDR_MODE_2_ADDRESS
|
||||
#define ADDR_MODE_3_RN ADDR_MODE_2_RN
|
||||
#define ADDR_MODE_3_RM ADDR_MODE_2_RM
|
||||
#define ADDR_MODE_3_IMMEDIATE ADDR_MODE_2_IMMEDIATE
|
||||
#define ADDR_MODE_3_INDEX(U_OP, M) ADDR_MODE_2_INDEX(U_OP, M)
|
||||
#define ADDR_MODE_3_WRITEBACK(ADDR) ADDR_MODE_2_WRITEBACK(ADDR)
|
||||
|
||||
#define DEFINE_INSTRUCTION_ARM(NAME, BODY) \
|
||||
static void _ARMInstruction ## NAME (struct ARMCore* cpu, uint32_t opcode) { \
|
||||
BODY; \
|
||||
}
|
||||
|
||||
#define DEFINE_ALU_INSTRUCTION_EX_ARM(NAME, S_BODY, SHIFTER, BODY, POST_BODY) \
|
||||
DEFINE_INSTRUCTION_ARM(NAME, \
|
||||
int rd = (opcode >> 12) & 0xF; \
|
||||
int rn = (opcode >> 16) & 0xF; \
|
||||
SHIFTER(cpu, opcode); \
|
||||
BODY; \
|
||||
S_BODY; \
|
||||
POST_BODY; \
|
||||
if (rd == ARM_PC) { \
|
||||
ARM_WRITE_PC; \
|
||||
})
|
||||
|
||||
#define DEFINE_ALU_INSTRUCTION_ARM(NAME, S_BODY, BODY, POST_BODY) \
|
||||
DEFINE_ALU_INSTRUCTION_EX_ARM(NAME, , _barrelShift, BODY, POST_BODY) \
|
||||
DEFINE_ALU_INSTRUCTION_EX_ARM(NAME ## S, S_BODY, _barrelShift, BODY, POST_BODY) \
|
||||
DEFINE_ALU_INSTRUCTION_EX_ARM(NAME ## I, , _immediate, BODY, POST_BODY) \
|
||||
DEFINE_ALU_INSTRUCTION_EX_ARM(NAME ## SI, S_BODY, _immediate, BODY, POST_BODY)
|
||||
|
||||
#define DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME, ADDRESS, WRITEBACK, BODY) \
|
||||
DEFINE_INSTRUCTION_ARM(NAME, \
|
||||
uint32_t address; \
|
||||
int rn = (opcode >> 16) & 0xF; \
|
||||
int rd = (opcode >> 12) & 0xF; \
|
||||
int rm = opcode & 0xF; \
|
||||
address = ADDRESS; \
|
||||
BODY; \
|
||||
WRITEBACK;)
|
||||
|
||||
#define DEFINE_LOAD_STORE_INSTRUCTION_SHIFTER_ARM(NAME, SHIFTER, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME, SHIFTER(ADDR_MODE_2_RN), ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_INDEX(-, ADDR_MODE_2_RM)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## U, SHIFTER(ADDR_MODE_2_RN), ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_INDEX(+, ADDR_MODE_2_RM)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## P, ADDR_MODE_2_INDEX(-, SHIFTER(ADDR_MODE_2_RM)), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## PW, ADDR_MODE_2_INDEX(-, SHIFTER(ADDR_MODE_2_RM)), ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_ADDRESS), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## PU, ADDR_MODE_2_INDEX(+, SHIFTER(ADDR_MODE_2_RM)), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## PUW, ADDR_MODE_2_INDEX(+, SHIFTER(ADDR_MODE_2_RM)), ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_ADDRESS), BODY)
|
||||
|
||||
|
||||
#define DEFINE_LOAD_STORE_INSTRUCTION_ARM(NAME, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_SHIFTER_ARM(NAME ## _LSL_, ADDR_MODE_2_LSL, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_SHIFTER_ARM(NAME ## _LSR_, ADDR_MODE_2_LSR, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_SHIFTER_ARM(NAME ## _ASR_, ADDR_MODE_2_ASR, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_SHIFTER_ARM(NAME ## _ROR_, ADDR_MODE_2_ROR, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## I, ADDR_MODE_2_RN, ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_INDEX(-, ADDR_MODE_2_IMMEDIATE)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IU, ADDR_MODE_2_RN, ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_INDEX(+, ADDR_MODE_2_IMMEDIATE)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IP, ADDR_MODE_2_INDEX(-, ADDR_MODE_2_IMMEDIATE), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IPW, ADDR_MODE_2_INDEX(-, ADDR_MODE_2_IMMEDIATE), ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_ADDRESS), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IPU, ADDR_MODE_2_INDEX(+, ADDR_MODE_2_IMMEDIATE), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IPUW, ADDR_MODE_2_INDEX(+, ADDR_MODE_2_IMMEDIATE), ADDR_MODE_2_WRITEBACK(ADDR_MODE_2_ADDRESS), BODY) \
|
||||
|
||||
#define DEFINE_LOAD_STORE_MODE_3_INSTRUCTION_ARM(NAME, BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME, ADDR_MODE_3_RN, ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_INDEX(-, ADDR_MODE_3_RM)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## U, ADDR_MODE_3_RN, ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_INDEX(+, ADDR_MODE_3_RM)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## P, ADDR_MODE_3_INDEX(-, ADDR_MODE_3_RM), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## PW, ADDR_MODE_3_INDEX(-, ADDR_MODE_3_RM), ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_ADDRESS), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## PU, ADDR_MODE_3_INDEX(+, ADDR_MODE_3_RM), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## PUW, ADDR_MODE_3_INDEX(+, ADDR_MODE_3_RM), ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_ADDRESS), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## I, ADDR_MODE_3_RN, ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_INDEX(-, ADDR_MODE_3_IMMEDIATE)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IU, ADDR_MODE_3_RN, ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_INDEX(+, ADDR_MODE_3_IMMEDIATE)), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IP, ADDR_MODE_3_INDEX(-, ADDR_MODE_3_IMMEDIATE), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IPW, ADDR_MODE_3_INDEX(-, ADDR_MODE_3_IMMEDIATE), ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_ADDRESS), BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IPU, ADDR_MODE_3_INDEX(+, ADDR_MODE_3_IMMEDIATE), , BODY) \
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_EX_ARM(NAME ## IPUW, ADDR_MODE_3_INDEX(+, ADDR_MODE_3_IMMEDIATE), ADDR_MODE_3_WRITEBACK(ADDR_MODE_3_ADDRESS), BODY) \
|
||||
|
||||
// TODO
|
||||
#define DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME, ADDRESS, S_PRE, S_POST, BODY) \
|
||||
DEFINE_INSTRUCTION_ARM(NAME, \
|
||||
BODY;)
|
||||
|
||||
#define DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_ARM(NAME, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## DA, ADDR_MODE_4_DA, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## DAW, ADDR_MODE_4_DAW, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## DB, ADDR_MODE_4_DB, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## DBW, ADDR_MODE_4_DBW, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## IA, ADDR_MODE_4_IA, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## IAW, ADDR_MODE_4_IAW, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## IB, ADDR_MODE_4_IB, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## IBW, ADDR_MODE_4_IBW, , , BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SDA, ADDR_MODE_4_DA, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SDAW, ADDR_MODE_4_DAW, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SDB, ADDR_MODE_4_DB, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SDBW, ADDR_MODE_4_DBW, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SIA, ADDR_MODE_4_IA, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SIAW, ADDR_MODE_4_IAW, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SIB, ADDR_MODE_4_IB, S_PRE, S_POST, BODY) \
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_EX_ARM(NAME ## SIBW, ADDR_MODE_4_IBW, S_PRE, S_POST, BODY)
|
||||
|
||||
// Begin ALU definitions
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(ADD, ARM_ADDITION_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = cpu->gprs[rn] + cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(ADC, ARM_ADDITION_S(cpu->gprs[rn], shifterOperand, cpu->gprs[rd]), \
|
||||
int32_t shifterOperand = cpu->shifterOperand + cpu->cpsr.c; \
|
||||
cpu->gprs[rd] = cpu->gprs[rn] + shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(AND, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = cpu->gprs[rn] & cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(BIC, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = cpu->gprs[rn] & ~cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(CMN, ARM_ADDITION_S(cpu->gprs[rn], cpu->shifterOperand, aluOut), \
|
||||
int32_t aluOut = cpu->gprs[rn] + cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(CMP, ARM_SUBTRACTION_S(cpu->gprs[rn], cpu->shifterOperand, aluOut), \
|
||||
int32_t aluOut = cpu->gprs[rn] - cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(EOR, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = cpu->gprs[rn] ^ cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(MOV, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(MVN, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = ~cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(ORR, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, cpu->gprs[rd]), \
|
||||
cpu->gprs[rd] = cpu->gprs[rn] | cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(RSB, ARM_SUBTRACTION_S(cpu->shifterOperand, cpu->gprs[rn], d), \
|
||||
int32_t d = cpu->shifterOperand - cpu->gprs[rn];, cpu->gprs[rd] = d)
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(RSC, ARM_SUBTRACTION_S(cpu->shifterOperand, n, d), \
|
||||
int32_t n = cpu->gprs[rn] + !cpu->cpsr.c; \
|
||||
int32_t d = cpu->shifterOperand - n;, cpu->gprs[rd] = d)
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(SBC, ARM_SUBTRACTION_S(cpu->gprs[rn], shifterOperand, d), \
|
||||
int32_t shifterOperand = cpu->shifterOperand + !cpu->cpsr.c; \
|
||||
int32_t d = cpu->gprs[rn] - shifterOperand;, cpu->gprs[rd] = d)
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(SUB, ARM_SUBTRACTION_S(cpu->gprs[rn], cpu->shifterOperand, d), \
|
||||
int32_t d = cpu->gprs[rn] - cpu->shifterOperand;, cpu->gprs[rd] = d)
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(TEQ, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, aluOut), \
|
||||
int32_t aluOut = cpu->gprs[rn] ^ cpu->shifterOperand;, )
|
||||
|
||||
DEFINE_ALU_INSTRUCTION_ARM(TST, ARM_NEUTRAL_S(cpu->gprs[rn], cpu->shifterOperand, aluOut), \
|
||||
int32_t aluOut = cpu->gprs[rn] & cpu->shifterOperand;, )
|
||||
|
||||
// End ALU definitions
|
||||
|
||||
// Begin multiply definitions
|
||||
|
||||
DEFINE_INSTRUCTION_ARM(MLA,)
|
||||
DEFINE_INSTRUCTION_ARM(MLAS,)
|
||||
DEFINE_INSTRUCTION_ARM(MUL,)
|
||||
DEFINE_INSTRUCTION_ARM(MULS,)
|
||||
DEFINE_INSTRUCTION_ARM(SMLAL,)
|
||||
DEFINE_INSTRUCTION_ARM(SMLALS,)
|
||||
DEFINE_INSTRUCTION_ARM(SMULL,)
|
||||
DEFINE_INSTRUCTION_ARM(SMULLS,)
|
||||
DEFINE_INSTRUCTION_ARM(UMLAL,)
|
||||
DEFINE_INSTRUCTION_ARM(UMLALS,)
|
||||
DEFINE_INSTRUCTION_ARM(UMULL,)
|
||||
DEFINE_INSTRUCTION_ARM(UMULLS,)
|
||||
|
||||
// End multiply definitions
|
||||
|
||||
// Begin load/store definitions
|
||||
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(LDR, cpu->gprs[rd] = cpu->memory->load32(cpu->memory, address))
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(LDRB, cpu->gprs[rd] = cpu->memory->loadU8(cpu->memory, address))
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(LDRBT,)
|
||||
DEFINE_LOAD_STORE_MODE_3_INSTRUCTION_ARM(LDRH, cpu->gprs[rd] = cpu->memory->loadU16(cpu->memory, address))
|
||||
DEFINE_LOAD_STORE_MODE_3_INSTRUCTION_ARM(LDRSB, cpu->gprs[rd] = cpu->memory->load8(cpu->memory, address))
|
||||
DEFINE_LOAD_STORE_MODE_3_INSTRUCTION_ARM(LDRSH, cpu->gprs[rd] = cpu->memory->load16(cpu->memory, address))
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(LDRT,)
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(STR, cpu->memory->store32(cpu->memory, address, cpu->gprs[rd]))
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(STRB, cpu->memory->store8(cpu->memory, address, cpu->gprs[rd]))
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(STRBT,)
|
||||
DEFINE_LOAD_STORE_MODE_3_INSTRUCTION_ARM(STRH, cpu->memory->store16(cpu->memory, address, cpu->gprs[rd]))
|
||||
DEFINE_LOAD_STORE_INSTRUCTION_ARM(STRT,)
|
||||
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_ARM(LDM,)
|
||||
DEFINE_LOAD_STORE_MULTIPLE_INSTRUCTION_ARM(STM,)
|
||||
|
||||
DEFINE_INSTRUCTION_ARM(SWP,)
|
||||
DEFINE_INSTRUCTION_ARM(SWPB,)
|
||||
|
||||
// End load/store definitions
|
||||
|
||||
// Begin branch definitions
|
||||
|
||||
DEFINE_INSTRUCTION_ARM(B, \
|
||||
int32_t offset = opcode << 8; \
|
||||
offset >>= 6; \
|
||||
cpu->gprs[ARM_PC] += offset; \
|
||||
ARM_WRITE_PC;)
|
||||
|
||||
DEFINE_INSTRUCTION_ARM(BL,)
|
||||
DEFINE_INSTRUCTION_ARM(BX,)
|
||||
|
||||
// End branch definitions
|
||||
|
||||
// TODO
|
||||
DEFINE_INSTRUCTION_ARM(ILL,) // Illegal opcode
|
||||
DEFINE_INSTRUCTION_ARM(MSR,)
|
||||
DEFINE_INSTRUCTION_ARM(MRS,)
|
||||
DEFINE_INSTRUCTION_ARM(MSRI,)
|
||||
DEFINE_INSTRUCTION_ARM(MRSI,)
|
||||
DEFINE_INSTRUCTION_ARM(SWI,)
|
||||
|
||||
#define DECLARE_INSTRUCTION_ARM(EMITTER, NAME) \
|
||||
EMITTER ## NAME
|
||||
|
||||
#define DO_8(DIRECTIVE) \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE, \
|
||||
DIRECTIVE
|
||||
|
||||
#define DO_256(DIRECTIVE) \
|
||||
DO_8(DO_8(DIRECTIVE)), \
|
||||
DO_8(DO_8(DIRECTIVE)), \
|
||||
DO_8(DO_8(DIRECTIVE)), \
|
||||
DO_8(DO_8(DIRECTIVE))
|
||||
|
||||
#define DO_INTERLACE(LEFT, RIGHT) \
|
||||
LEFT, \
|
||||
RIGHT
|
||||
|
||||
#define DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ALU) \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, ALU ## I)), \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, ALU ## I))
|
||||
|
||||
#define DECLARE_ARM_ALU_BLOCK(EMITTER, ALU, EX1, EX2, EX3, EX4) \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, ALU)), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ALU), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, EX1), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ALU), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, EX2), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ALU), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, EX3), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ALU), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, EX4)
|
||||
|
||||
#define DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, NAME, P, U, W) \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## I ## P ## U ## W)), \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## I ## P ## U ## W))
|
||||
|
||||
#define DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, NAME, P, U, W) \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _LSL_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _LSR_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _ASR_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _ROR_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _LSL_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _LSR_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _ASR_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## _ROR_ ## P ## U ## W), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL)
|
||||
|
||||
#define DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, NAME, MODE, W) \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## MODE ## W)), \
|
||||
DO_8(DECLARE_INSTRUCTION_ARM(EMITTER, NAME ## MODE ## W))
|
||||
|
||||
#define DECLARE_ARM_BRANCH_BLOCK(EMITTER, NAME) \
|
||||
DO_256(DECLARE_INSTRUCTION_ARM(EMITTER, NAME))
|
||||
|
||||
// TODO: Support coprocessors
|
||||
#define DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, NAME, P, U, W, N) \
|
||||
DO_8(0), \
|
||||
DO_8(0)
|
||||
|
||||
#define DECLARE_ARM_COPROCESSOR_BLOCK(EMITTER, NAME1, NAME2) \
|
||||
DO_8(DO_8(DO_INTERLACE(0, 0))), \
|
||||
DO_8(DO_8(DO_INTERLACE(0, 0)))
|
||||
|
||||
#define DECLARE_ARM_SWI_BLOCK(EMITTER) \
|
||||
DO_256(DECLARE_INSTRUCTION_ARM(EMITTER, SWI))
|
||||
|
||||
#define DECLARE_EMITTER_BLOCK(EMITTER) \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, AND, MUL, STRH, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ANDS, MULS, LDRH, LDRSB, LDRSH), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, EOR, MLA, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, EORS, MLAS, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, SUB, ILL, STRHI, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, SUBS, ILL, LDRHI, LDRSBI, LDRSHI), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, RSB, ILL, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, RSBS, ILL, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ADD, UMULL, STRHU, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ADDS, UMULLS, LDRHU, LDRSBU, LDRSHU), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ADC, UMLAL, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ADCS, UMLALS, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, SBC, SMULL, STRHIU, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, SBCS, SMULLS, LDRHIU, LDRSBIU, LDRSHIU), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, RSC, SMLAL, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, RSCS, SMLALS, ILL, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MRS, SWP, STRHP, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, TST, ILL, LDRHP, LDRSBP, LDRSHP), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, MSR), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, BX), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, STRHPW), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_INSTRUCTION_ARM(EMITTER, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, TEQ, ILL, LDRHPW, LDRSBPW, LDRSHPW), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MRS, SWPB, STRHIP, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, CMP, ILL, LDRHIP, LDRSBIP, LDRSHIP), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MSR, ILL, STRHIPW, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, CMN, ILL, LDRHIPW, LDRSBIPW, LDRSHIPW), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ORR, SMLAL, STRHPU, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, ORRS, SMLALS, LDRHPU, LDRSBPU, LDRSHPU), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MOV, SMLAL, STRHPUW, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MOVS, SMLALS, LDRHPUW, LDRSBPUW, LDRSHPUW), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, BIC, SMLAL, STRHIPU, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, BICS, SMLALS, LDRHIPU, LDRSBIPU, LDRSHIPU), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MVN, SMLAL, STRHIPUW, ILL, ILL), \
|
||||
DECLARE_ARM_ALU_BLOCK(EMITTER, MVNS, SMLALS, LDRHIPUW, LDRSBIPUW, LDRSHIPUW), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, AND), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ANDS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, EOR), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, EORS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, SUB), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, SUBS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, RSB), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, RSBS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ADD), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ADDS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ADC), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ADCS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, SBC), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, SBCS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, RSC), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, RSCS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MRS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, TST), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MSR), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, TEQ), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MRS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, CMP), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MSR), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, CMN), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ORR), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, ORRS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MOV), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MOVS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, BIC), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, BICS), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MVN), \
|
||||
DECLARE_ARM_ALU_IMMEDIATE_BLOCK(EMITTER, MVNS), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STR, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDR, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRB, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRB, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRBT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRBT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STR, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDR, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRB, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRB, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRBT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRBT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STR, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDR, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STR, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDR, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRB, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRB, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRB, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRB, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STR, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDR, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STR, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDR, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRB, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRB, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, STRB, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_IMMEDIATE_BLOCK(EMITTER, LDRB, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STR, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDR, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRB, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRB, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRBT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRBT, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STR, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDR, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRB, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRB, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRBT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRBT, , U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STR, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDR, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STR, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDR, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRB, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRB, P, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRB, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRB, P, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STR, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDR, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STR, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDR, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRB, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRB, P, U, ), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, STRB, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_BLOCK(EMITTER, LDRB, P, U, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, DA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, DA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, DA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, DA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, DA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, DA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, DA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, DA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, IA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, IA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, IA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, IA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, IA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, IA, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, IA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, IA, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, DB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, DB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, DB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, DB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, DB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, DB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, DB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, DB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, IB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, IB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STM, IB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDM, IB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, IB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, IB, ), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, STMS, IB, W), \
|
||||
DECLARE_ARM_LOAD_STORE_MULTIPLE_BLOCK(EMITTER, LDMS, IB, W), \
|
||||
DECLARE_ARM_BRANCH_BLOCK(EMITTER, B), \
|
||||
DECLARE_ARM_BRANCH_BLOCK(EMITTER, BL), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , , , W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , , , W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , , N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , , N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , , N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , , N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , U, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , U, , ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , U, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , U, , W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , U, N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , U, N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, , U, N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, , U, N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, , , ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, , , W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, , , W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, U, N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, U, N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, U, N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, U, N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, , N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, , N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, , N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, , N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, U, N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, U, N, ), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, STC, P, U, N, W), \
|
||||
DECLARE_ARM_LOAD_STORE_COPROCESSOR_BLOCK(EMITTER, LDC, P, U, N, W), \
|
||||
DECLARE_ARM_COPROCESSOR_BLOCK(EMITTER, CDP, MCR), \
|
||||
DECLARE_ARM_SWI_BLOCK(EMITTER)
|
||||
|
||||
static const ARMInstruction _armTable[0x1000] = {
|
||||
DECLARE_EMITTER_BLOCK(_ARMInstruction)
|
||||
};
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
#ifndef ISA_ARM_H
|
||||
#define ISA_ARM_H
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
struct ARMCore;
|
||||
|
||||
void ARMStep(struct ARMCore* cpu);
|
||||
typedef void (*ARMInstruction)(struct ARMCore*, uint32_t opcode);
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,52 @@
|
|||
#ifndef ISA_INLINES_H
|
||||
#define ISA_INLINES_H
|
||||
|
||||
#define ARM_COND_EQ (cpu->cpsr.z)
|
||||
#define ARM_COND_NE (!cpu->cpsr.z)
|
||||
#define ARM_COND_CS (cpu->cpsr.c)
|
||||
#define ARM_COND_CC (!cpu->cpsr.c)
|
||||
#define ARM_COND_MI (cpu->cpsr.n)
|
||||
#define ARM_COND_PL (!cpu->cpsr.n)
|
||||
#define ARM_COND_VS (cpu->cpsr.v)
|
||||
#define ARM_COND_VC (!cpu->cpsr.v)
|
||||
#define ARM_COND_HI (cpu->cpsr.c && !cpu->cpsr.z)
|
||||
#define ARM_COND_LS (!cpu->cpsr.c || cpu->cpsr.z)
|
||||
#define ARM_COND_GE (!cpu->cpsr.n == !cpu->cpsr.v)
|
||||
#define ARM_COND_LT (!cpu->cpsr.n != !cpu->cpsr.v)
|
||||
#define ARM_COND_GT (!cpu->cpsr.z && !cpu->cpsr.n == !cpu->cpsr.v)
|
||||
#define ARM_COND_LE (cpu->cpsr.z || !cpu->cpsr.n != !cpu->cpsr.v)
|
||||
#define ARM_COND_AL 1
|
||||
|
||||
#define ARM_SIGN(I) ((I) >> 31)
|
||||
#define ARM_ROR(I, ROTATE) (((I) >> ROTATE) | (I << (32 - ROTATE)))
|
||||
|
||||
#define ARM_CARRY_FROM(M, N, D) ((ARM_SIGN((M) | (N))) && !(ARM_SIGN(D)))
|
||||
#define ARM_BORROW_FROM(M, N, D) (((uint32_t) (M)) >= ((uint32_t) (N)))
|
||||
#define ARM_V_ADDITION(M, N, D) (!(ARM_SIGN((M) ^ (N))) && (ARM_SIGN((M) ^ (D))) && (ARM_SIGN((N) ^ (D))))
|
||||
#define ARM_V_SUBTRACTION(M, N, D) ((ARM_SIGN((M) ^ (N))) && (ARM_SIGN((M) ^ (D))))
|
||||
|
||||
static inline int _ARMModeHasSPSR(enum PrivilegeMode mode) {
|
||||
return mode != MODE_SYSTEM && mode != MODE_USER;
|
||||
}
|
||||
|
||||
static inline void _ARMSetMode(struct ARMCore* cpu, enum ExecutionMode executionMode) {
|
||||
if (executionMode == cpu->executionMode) {
|
||||
return;
|
||||
}
|
||||
|
||||
cpu->executionMode = executionMode;
|
||||
switch (executionMode) {
|
||||
case MODE_ARM:
|
||||
cpu->cpsr.t = 0;
|
||||
break;
|
||||
case MODE_THUMB:
|
||||
cpu->cpsr.t = 1;
|
||||
}
|
||||
}
|
||||
|
||||
static inline void _ARMReadCPSR(struct ARMCore* cpu) {
|
||||
_ARMSetMode(cpu, cpu->cpsr.t);
|
||||
ARMSetPrivilegeMode(cpu, cpu->cpsr.priv);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -1,5 +1,6 @@
|
|||
#include "arm.h"
|
||||
#include "gba.h"
|
||||
#include "isa-arm.h"
|
||||
|
||||
#include <sys/stat.h>
|
||||
#include <fcntl.h>
|
||||
|
|
|
|||
Loading…
Reference in New Issue