143 lines
2.2 KiB
C
143 lines
2.2 KiB
C
/* cpu.h VideoCore IV cpu-description header-file */
|
|
/* (c) in 2013 by Volker Barthelmann */
|
|
|
|
|
|
/* maximum number of operands in one mnemonic */
|
|
#define MAX_OPERANDS 4
|
|
|
|
/* maximum number of mnemonic-qualifiers per mnemonic */
|
|
#define MAX_QUALIFIERS 2
|
|
|
|
/* maximum number of additional command-line-flags for this cpu */
|
|
|
|
/* data type to represent a target-address */
|
|
typedef int32_t taddr;
|
|
typedef uint32_t utaddr;
|
|
|
|
#define LITTLEENDIAN 1
|
|
#define BIGENDIAN 0
|
|
#define VASM_CPU_VC4 1
|
|
|
|
/* minimum instruction alignment */
|
|
#define INST_ALIGN 2
|
|
|
|
/* default alignment for n-bit data */
|
|
#define DATA_ALIGN(n) ((n)<=8?1:(n<=16?2:4))
|
|
|
|
/* operand class for n-bit data definitions */
|
|
#define DATA_OPERAND(n) OP_ABS
|
|
|
|
#define cc reg
|
|
|
|
/* type to store each operand */
|
|
typedef struct {
|
|
int type;
|
|
int reg;
|
|
int dreg;
|
|
long vecmod;
|
|
expr *offset;
|
|
} operand;
|
|
|
|
/* vecmod:
|
|
0-15: f_i or add-reg for vload/vstore
|
|
16-18: rep
|
|
20: setf
|
|
|
|
for 80-bit 'A' registers, 'dreg' is formatted as
|
|
0-5: flags
|
|
6-9: ra_x
|
|
*/
|
|
|
|
/* operand-types */
|
|
enum {
|
|
OP_REG=1,
|
|
OP_SREG,
|
|
OP_PC,
|
|
OP_LR,
|
|
OP_MREG,
|
|
OP_VREG,
|
|
OP_VREGA80,
|
|
OP_VREGM,
|
|
OP_VREGMM,
|
|
OP_ABS,
|
|
OP_REL,
|
|
OP_IMM4,
|
|
OP_IMM5,
|
|
OP_IMM6,
|
|
OP_IMM32M,
|
|
OP_IMM32,
|
|
OP_REGIND,
|
|
OP_IMMINDPC,
|
|
OP_IMMINDSP,
|
|
OP_IMMINDSD,
|
|
OP_IMMINDR0,
|
|
OP_IMMINDS,
|
|
OP_IMMIND,
|
|
OP_PREDEC,
|
|
OP_POSTINC,
|
|
OP_IND,
|
|
OP_VIND,
|
|
OP_DISP5,
|
|
OP_DISP12,
|
|
OP_DISP16,
|
|
OP_DISP27,
|
|
};
|
|
|
|
|
|
#define CPU_VC4 1
|
|
#define CPU_ALL (-1)
|
|
|
|
enum {
|
|
EN_ARITHR16,
|
|
EN_ARITHI16,
|
|
EN_FIX16,
|
|
EN_LEA16,
|
|
EN_IBRANCH16,
|
|
EN_RBRANCH16,
|
|
EN_TABLE16,
|
|
EN_MREG16,
|
|
EN_MEMSTACK16,
|
|
EN_MEMREG16,
|
|
EN_MEMDISP16,
|
|
EN_CONDR32,
|
|
EN_CONDI32,
|
|
EN_RBRANCH32,
|
|
EN_ADDCMPB32,
|
|
EN_MEMREG32,
|
|
EN_MEMDISP32,
|
|
EN_MEMPREDEC,
|
|
EN_MEMPOSTINC,
|
|
EN_MEM12DISP32,
|
|
EN_MEM16DISP32,
|
|
EN_FUNARY32,
|
|
EN_ARITHR32,
|
|
EN_ARITHI32,
|
|
EN_LEA48,
|
|
EN_MEM48,
|
|
EN_ARITHI48,
|
|
EN_ADD48,
|
|
EN_VLOAD48,
|
|
EN_VSTORE48,
|
|
EN_VREAD48,
|
|
EN_VWRITE48,
|
|
EN_VREADI48,
|
|
EN_VWRITEI48,
|
|
EN_VARITHR48,
|
|
EN_VARITHI48,
|
|
EN_ADDCMPB64,
|
|
EN_VLOAD80,
|
|
EN_VSTORE80,
|
|
EN_VREAD80,
|
|
EN_VWRITE80,
|
|
EN_VREADI80,
|
|
EN_VWRITEI80,
|
|
EN_VARITHR80,
|
|
EN_VARITHI80,
|
|
};
|
|
|
|
typedef struct {
|
|
unsigned int encoding;
|
|
unsigned int code;
|
|
unsigned int available;
|
|
} mnemonic_extension;
|