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tinycc/c67-gen.c
Michael Matz 671dcace82 Implement function alignment via attributes 
which requires being able to emit an arbitrary number of NOP
instructions, which is also implemented here.  For x86 we
could emit other sequences but these are the easiest.
2018-04-06 23:02:42 +02:00

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/*
* TMS320C67xx code generator for TCC
*
* Copyright (c) 2001, 2002 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef TARGET_DEFS_ONLY
/* #define ASSEMBLY_LISTING_C67 */
/* number of available registers */
#define NB_REGS 24
/* a register can belong to several classes. The classes must be
sorted from more general to more precise (see gv2() code which does
assumptions on it). */
#define RC_INT 0x0001 /* generic integer register */
#define RC_FLOAT 0x0002 /* generic float register */
#define RC_EAX 0x0004
#define RC_ST0 0x0008
#define RC_ECX 0x0010
#define RC_EDX 0x0020
#define RC_INT_BSIDE 0x00000040 /* generic integer register on b side */
#define RC_C67_A4 0x00000100
#define RC_C67_A5 0x00000200
#define RC_C67_B4 0x00000400
#define RC_C67_B5 0x00000800
#define RC_C67_A6 0x00001000
#define RC_C67_A7 0x00002000
#define RC_C67_B6 0x00004000
#define RC_C67_B7 0x00008000
#define RC_C67_A8 0x00010000
#define RC_C67_A9 0x00020000
#define RC_C67_B8 0x00040000
#define RC_C67_B9 0x00080000
#define RC_C67_A10 0x00100000
#define RC_C67_A11 0x00200000
#define RC_C67_B10 0x00400000
#define RC_C67_B11 0x00800000
#define RC_C67_A12 0x01000000
#define RC_C67_A13 0x02000000
#define RC_C67_B12 0x04000000
#define RC_C67_B13 0x08000000
#define RC_IRET RC_C67_A4 /* function return: integer register */
#define RC_LRET RC_C67_A5 /* function return: second integer register */
#define RC_FRET RC_C67_A4 /* function return: float register */
/* pretty names for the registers */
enum {
TREG_EAX = 0, // really A2
TREG_ECX, // really A3
TREG_EDX, // really B0
TREG_ST0, // really B1
TREG_C67_A4,
TREG_C67_A5,
TREG_C67_B4,
TREG_C67_B5,
TREG_C67_A6,
TREG_C67_A7,
TREG_C67_B6,
TREG_C67_B7,
TREG_C67_A8,
TREG_C67_A9,
TREG_C67_B8,
TREG_C67_B9,
TREG_C67_A10,
TREG_C67_A11,
TREG_C67_B10,
TREG_C67_B11,
TREG_C67_A12,
TREG_C67_A13,
TREG_C67_B12,
TREG_C67_B13,
};
/* return registers for function */
#define REG_IRET TREG_C67_A4 /* single word int return register */
#define REG_LRET TREG_C67_A5 /* second word return register (for long long) */
#define REG_FRET TREG_C67_A4 /* float return register */
/* defined if function parameters must be evaluated in reverse order */
/* #define INVERT_FUNC_PARAMS */
/* defined if structures are passed as pointers. Otherwise structures
are directly pushed on stack. */
/* #define FUNC_STRUCT_PARAM_AS_PTR */
/* pointer size, in bytes */
#define PTR_SIZE 4
/* long double size and alignment, in bytes */
#define LDOUBLE_SIZE 12
#define LDOUBLE_ALIGN 4
/* maximum alignment (for aligned attribute support) */
#define MAX_ALIGN 8
/******************************************************/
#else /* ! TARGET_DEFS_ONLY */
/******************************************************/
#include "tcc.h"
ST_DATA const int reg_classes[NB_REGS] = {
/* eax */ RC_INT | RC_FLOAT | RC_EAX,
// only allow even regs for floats (allow for doubles)
/* ecx */ RC_INT | RC_ECX,
/* edx */ RC_INT | RC_INT_BSIDE | RC_FLOAT | RC_EDX,
// only allow even regs for floats (allow for doubles)
/* st0 */ RC_INT | RC_INT_BSIDE | RC_ST0,
/* A4 */ RC_C67_A4,
/* A5 */ RC_C67_A5,
/* B4 */ RC_C67_B4,
/* B5 */ RC_C67_B5,
/* A6 */ RC_C67_A6,
/* A7 */ RC_C67_A7,
/* B6 */ RC_C67_B6,
/* B7 */ RC_C67_B7,
/* A8 */ RC_C67_A8,
/* A9 */ RC_C67_A9,
/* B8 */ RC_C67_B8,
/* B9 */ RC_C67_B9,
/* A10 */ RC_C67_A10,
/* A11 */ RC_C67_A11,
/* B10 */ RC_C67_B10,
/* B11 */ RC_C67_B11,
/* A12 */ RC_C67_A10,
/* A13 */ RC_C67_A11,
/* B12 */ RC_C67_B10,
/* B13 */ RC_C67_B11
};
// although tcc thinks it is passing parameters on the stack,
// the C67 really passes up to the first 10 params in special
// regs or regs pairs (for 64 bit params). So keep track of
// the stack offsets so we can translate to the appropriate
// reg (pair)
#define NoCallArgsPassedOnStack 10
int NoOfCurFuncArgs;
int TranslateStackToReg[NoCallArgsPassedOnStack];
int ParamLocOnStack[NoCallArgsPassedOnStack];
int TotalBytesPushedOnStack;
#ifndef FALSE
# define FALSE 0
# define TRUE 1
#endif
#undef BOOL
#define BOOL int
#define ALWAYS_ASSERT(x) \
do {\
if (!(x))\
tcc_error("internal compiler error file at %s:%d", __FILE__, __LINE__);\
} while (0)
/******************************************************/
static unsigned long func_sub_sp_offset;
static int func_ret_sub;
static BOOL C67_invert_test;
static int C67_compare_reg;
#ifdef ASSEMBLY_LISTING_C67
FILE *f = NULL;
#endif
void C67_g(int c)
{
int ind1;
if (nocode_wanted)
return;
#ifdef ASSEMBLY_LISTING_C67
fprintf(f, " %08X", c);
#endif
ind1 = ind + 4;
if (ind1 > (int) cur_text_section->data_allocated)
section_realloc(cur_text_section, ind1);
cur_text_section->data[ind] = c & 0xff;
cur_text_section->data[ind + 1] = (c >> 8) & 0xff;
cur_text_section->data[ind + 2] = (c >> 16) & 0xff;
cur_text_section->data[ind + 3] = (c >> 24) & 0xff;
ind = ind1;
}
/* output a symbol and patch all calls to it */
void gsym_addr(int t, int a)
{
int n, *ptr;
while (t) {
ptr = (int *) (cur_text_section->data + t);
{
Sym *sym;
// extract 32 bit address from MVKH/MVKL
n = ((*ptr >> 7) & 0xffff);
n |= ((*(ptr + 1) >> 7) & 0xffff) << 16;
// define a label that will be relocated
sym = get_sym_ref(&char_pointer_type, cur_text_section, a, 0);
greloc(cur_text_section, sym, t, R_C60LO16);
greloc(cur_text_section, sym, t + 4, R_C60HI16);
// clear out where the pointer was
*ptr &= ~(0xffff << 7);
*(ptr + 1) &= ~(0xffff << 7);
}
t = n;
}
}
void gsym(int t)
{
gsym_addr(t, ind);
}
// these are regs that tcc doesn't really know about,
// but assign them unique values so the mapping routines
// can distinguish them
#define C67_A0 105
#define C67_SP 106
#define C67_B3 107
#define C67_FP 108
#define C67_B2 109
#define C67_CREG_ZERO -1 /* Special code for no condition reg test */
int ConvertRegToRegClass(int r)
{
// only works for A4-B13
return RC_C67_A4 << (r - TREG_C67_A4);
}
// map TCC reg to C67 reg number
int C67_map_regn(int r)
{
if (r == 0) // normal tcc regs
return 0x2; // A2
else if (r == 1) // normal tcc regs
return 3; // A3
else if (r == 2) // normal tcc regs
return 0; // B0
else if (r == 3) // normal tcc regs
return 1; // B1
else if (r >= TREG_C67_A4 && r <= TREG_C67_B13) // these form a pattern of alt pairs
return (((r & 0xfffffffc) >> 1) | (r & 1)) + 2;
else if (r == C67_A0)
return 0; // set to A0 (offset reg)
else if (r == C67_B2)
return 2; // set to B2 (offset reg)
else if (r == C67_B3)
return 3; // set to B3 (return address reg)
else if (r == C67_SP)
return 15; // set to SP (B15) (offset reg)
else if (r == C67_FP)
return 15; // set to FP (A15) (offset reg)
else if (r == C67_CREG_ZERO)
return 0; // Special code for no condition reg test
else
ALWAYS_ASSERT(FALSE);
return 0;
}
// mapping from tcc reg number to
// C67 register to condition code field
//
// valid condition code regs are:
//
// tcc reg 2 ->B0 -> 1
// tcc reg 3 ->B1 -> 2
// tcc reg 0 -> A2 -> 5
// tcc reg 1 -> A3 -> X
// tcc reg B2 -> 3
int C67_map_regc(int r)
{
if (r == 0) // normal tcc regs
return 0x5;
else if (r == 2) // normal tcc regs
return 0x1;
else if (r == 3) // normal tcc regs
return 0x2;
else if (r == C67_B2) // normal tcc regs
return 0x3;
else if (r == C67_CREG_ZERO)
return 0; // Special code for no condition reg test
else
ALWAYS_ASSERT(FALSE);
return 0;
}
// map TCC reg to C67 reg side A or B
int C67_map_regs(int r)
{
if (r == 0) // normal tcc regs
return 0x0;
else if (r == 1) // normal tcc regs
return 0x0;
else if (r == 2) // normal tcc regs
return 0x1;
else if (r == 3) // normal tcc regs
return 0x1;
else if (r >= TREG_C67_A4 && r <= TREG_C67_B13) // these form a pattern of alt pairs
return (r & 2) >> 1;
else if (r == C67_A0)
return 0; // set to A side
else if (r == C67_B2)
return 1; // set to B side
else if (r == C67_B3)
return 1; // set to B side
else if (r == C67_SP)
return 0x1; // set to SP (B15) B side
else if (r == C67_FP)
return 0x0; // set to FP (A15) A side
else
ALWAYS_ASSERT(FALSE);
return 0;
}
int C67_map_S12(char *s)
{
if (strstr(s, ".S1") != NULL)
return 0;
else if (strcmp(s, ".S2"))
return 1;
else
ALWAYS_ASSERT(FALSE);
return 0;
}
int C67_map_D12(char *s)
{
if (strstr(s, ".D1") != NULL)
return 0;
else if (strcmp(s, ".D2"))
return 1;
else
ALWAYS_ASSERT(FALSE);
return 0;
}
void C67_asm(char *s, int a, int b, int c)
{
BOOL xpath;
#ifdef ASSEMBLY_LISTING_C67
if (!f) {
f = fopen("TCC67_out.txt", "wt");
}
fprintf(f, "%04X ", ind);
#endif
if (strstr(s, "MVKL") == s) {
C67_g((C67_map_regn(b) << 23) |
((a & 0xffff) << 7) | (0x0a << 2) | (C67_map_regs(b) << 1));
} else if (strstr(s, "MVKH") == s) {
C67_g((C67_map_regn(b) << 23) |
(((a >> 16) & 0xffff) << 7) |
(0x1a << 2) | (C67_map_regs(b) << 1));
} else if (strstr(s, "STW.D SP POST DEC") == s) {
C67_g((C67_map_regn(a) << 23) | //src
(15 << 18) | //SP B15
(2 << 13) | //ucst5 (must keep 8 byte boundary !!)
(0xa << 9) | //mode a = post dec ucst
(0 << 8) | //r (LDDW bit 0)
(1 << 7) | //y D1/D2 use B side
(7 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of src
(0 << 0)); //parallel
} else if (strstr(s, "STB.D *+SP[A0]") == s) {
C67_g((C67_map_regn(a) << 23) | //src
(15 << 18) | //base reg A15
(0 << 13) | //offset reg A0
(5 << 9) | //mode 5 = pos offset, base reg + off reg
(0 << 8) | //r (LDDW bit 0)
(0 << 7) | //y D1/D2 A side
(3 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of src
(0 << 0)); //parallel
} else if (strstr(s, "STH.D *+SP[A0]") == s) {
C67_g((C67_map_regn(a) << 23) | //src
(15 << 18) | //base reg A15
(0 << 13) | //offset reg A0
(5 << 9) | //mode 5 = pos offset, base reg + off reg
(0 << 8) | //r (LDDW bit 0)
(0 << 7) | //y D1/D2 A side
(5 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of src
(0 << 0)); //parallel
} else if (strstr(s, "STB.D *+SP[A0]") == s) {
C67_g((C67_map_regn(a) << 23) | //src
(15 << 18) | //base reg A15
(0 << 13) | //offset reg A0
(5 << 9) | //mode 5 = pos offset, base reg + off reg
(0 << 8) | //r (LDDW bit 0)
(0 << 7) | //y D1/D2 A side
(3 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of src
(0 << 0)); //parallel
} else if (strstr(s, "STH.D *+SP[A0]") == s) {
C67_g((C67_map_regn(a) << 23) | //src
(15 << 18) | //base reg A15
(0 << 13) | //offset reg A0
(5 << 9) | //mode 5 = pos offset, base reg + off reg
(0 << 8) | //r (LDDW bit 0)
(0 << 7) | //y D1/D2 A side
(5 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of src
(0 << 0)); //parallel
} else if (strstr(s, "STW.D *+SP[A0]") == s) {
C67_g((C67_map_regn(a) << 23) | //src
(15 << 18) | //base reg A15
(0 << 13) | //offset reg A0
(5 << 9) | //mode 5 = pos offset, base reg + off reg
(0 << 8) | //r (LDDW bit 0)
(0 << 7) | //y D1/D2 A side
(7 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of src
(0 << 0)); //parallel
} else if (strstr(s, "STW.D *") == s) {
C67_g((C67_map_regn(a) << 23) | //src
(C67_map_regn(b) << 18) | //base reg A0
(0 << 13) | //cst5
(1 << 9) | //mode 1 = pos cst offset
(0 << 8) | //r (LDDW bit 0)
(C67_map_regs(b) << 7) | //y D1/D2 base reg side
(7 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of src
(0 << 0)); //parallel
} else if (strstr(s, "STH.D *") == s) {
C67_g((C67_map_regn(a) << 23) | //src
(C67_map_regn(b) << 18) | //base reg A0
(0 << 13) | //cst5
(1 << 9) | //mode 1 = pos cst offset
(0 << 8) | //r (LDDW bit 0)
(C67_map_regs(b) << 7) | //y D1/D2 base reg side
(5 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of src
(0 << 0)); //parallel
} else if (strstr(s, "STB.D *") == s) {
C67_g((C67_map_regn(a) << 23) | //src
(C67_map_regn(b) << 18) | //base reg A0
(0 << 13) | //cst5
(1 << 9) | //mode 1 = pos cst offset
(0 << 8) | //r (LDDW bit 0)
(C67_map_regs(b) << 7) | //y D1/D2 base reg side
(3 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of src
(0 << 0)); //parallel
} else if (strstr(s, "STW.D +*") == s) {
ALWAYS_ASSERT(c < 32);
C67_g((C67_map_regn(a) << 23) | //src
(C67_map_regn(b) << 18) | //base reg A0
(c << 13) | //cst5
(1 << 9) | //mode 1 = pos cst offset
(0 << 8) | //r (LDDW bit 0)
(C67_map_regs(b) << 7) | //y D1/D2 base reg side
(7 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of src
(0 << 0)); //parallel
} else if (strstr(s, "LDW.D SP PRE INC") == s) {
C67_g((C67_map_regn(a) << 23) | //dst
(15 << 18) | //base reg B15
(2 << 13) | //ucst5 (must keep 8 byte boundary)
(9 << 9) | //mode 9 = pre inc ucst5
(0 << 8) | //r (LDDW bit 0)
(1 << 7) | //y D1/D2 B side
(6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDDW.D SP PRE INC") == s) {
C67_g((C67_map_regn(a) << 23) | //dst
(15 << 18) | //base reg B15
(1 << 13) | //ucst5 (must keep 8 byte boundary)
(9 << 9) | //mode 9 = pre inc ucst5
(1 << 8) | //r (LDDW bit 1)
(1 << 7) | //y D1/D2 B side
(6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDW.D *+SP[A0]") == s) {
C67_g((C67_map_regn(a) << 23) | //dst
(15 << 18) | //base reg A15
(0 << 13) | //offset reg A0
(5 << 9) | //mode 5 = pos offset, base reg + off reg
(0 << 8) | //r (LDDW bit 0)
(0 << 7) | //y D1/D2 A side
(6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDDW.D *+SP[A0]") == s) {
C67_g((C67_map_regn(a) << 23) | //dst
(15 << 18) | //base reg A15
(0 << 13) | //offset reg A0
(5 << 9) | //mode 5 = pos offset, base reg + off reg
(1 << 8) | //r (LDDW bit 1)
(0 << 7) | //y D1/D2 A side
(6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDH.D *+SP[A0]") == s) {
C67_g((C67_map_regn(a) << 23) | //dst
(15 << 18) | //base reg A15
(0 << 13) | //offset reg A0
(5 << 9) | //mode 5 = pos offset, base reg + off reg
(0 << 8) | //r (LDDW bit 0)
(0 << 7) | //y D1/D2 A side
(4 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDB.D *+SP[A0]") == s) {
C67_g((C67_map_regn(a) << 23) | //dst
(15 << 18) | //base reg A15
(0 << 13) | //offset reg A0
(5 << 9) | //mode 5 = pos offset, base reg + off reg
(0 << 8) | //r (LDDW bit 0)
(0 << 7) | //y D1/D2 A side
(2 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDHU.D *+SP[A0]") == s) {
C67_g((C67_map_regn(a) << 23) | //dst
(15 << 18) | //base reg A15
(0 << 13) | //offset reg A0
(5 << 9) | //mode 5 = pos offset, base reg + off reg
(0 << 8) | //r (LDDW bit 0)
(0 << 7) | //y D1/D2 A side
(0 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDBU.D *+SP[A0]") == s) {
C67_g((C67_map_regn(a) << 23) | //dst
(15 << 18) | //base reg A15
(0 << 13) | //offset reg A0
(5 << 9) | //mode 5 = pos offset, base reg + off reg
(0 << 8) | //r (LDDW bit 0)
(0 << 7) | //y D1/D2 A side
(1 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(a) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDW.D *") == s) {
C67_g((C67_map_regn(b) << 23) | //dst
(C67_map_regn(a) << 18) | //base reg A15
(0 << 13) | //cst5
(1 << 9) | //mode 1 = pos cst offset
(0 << 8) | //r (LDDW bit 0)
(C67_map_regs(a) << 7) | //y D1/D2 src side
(6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(b) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDDW.D *") == s) {
C67_g((C67_map_regn(b) << 23) | //dst
(C67_map_regn(a) << 18) | //base reg A15
(0 << 13) | //cst5
(1 << 9) | //mode 1 = pos cst offset
(1 << 8) | //r (LDDW bit 1)
(C67_map_regs(a) << 7) | //y D1/D2 src side
(6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(b) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDH.D *") == s) {
C67_g((C67_map_regn(b) << 23) | //dst
(C67_map_regn(a) << 18) | //base reg A15
(0 << 13) | //cst5
(1 << 9) | //mode 1 = pos cst offset
(0 << 8) | //r (LDDW bit 0)
(C67_map_regs(a) << 7) | //y D1/D2 src side
(4 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(b) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDB.D *") == s) {
C67_g((C67_map_regn(b) << 23) | //dst
(C67_map_regn(a) << 18) | //base reg A15
(0 << 13) | //cst5
(1 << 9) | //mode 1 = pos cst offset
(0 << 8) | //r (LDDW bit 0)
(C67_map_regs(a) << 7) | //y D1/D2 src side
(2 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(b) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDHU.D *") == s) {
C67_g((C67_map_regn(b) << 23) | //dst
(C67_map_regn(a) << 18) | //base reg A15
(0 << 13) | //cst5
(1 << 9) | //mode 1 = pos cst offset
(0 << 8) | //r (LDDW bit 0)
(C67_map_regs(a) << 7) | //y D1/D2 src side
(0 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(b) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDBU.D *") == s) {
C67_g((C67_map_regn(b) << 23) | //dst
(C67_map_regn(a) << 18) | //base reg A15
(0 << 13) | //cst5
(1 << 9) | //mode 1 = pos cst offset
(0 << 8) | //r (LDDW bit 0)
(C67_map_regs(a) << 7) | //y D1/D2 src side
(1 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(b) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "LDW.D +*") == s) {
C67_g((C67_map_regn(b) << 23) | //dst
(C67_map_regn(a) << 18) | //base reg A15
(1 << 13) | //cst5
(1 << 9) | //mode 1 = pos cst offset
(0 << 8) | //r (LDDW bit 0)
(C67_map_regs(a) << 7) | //y D1/D2 src side
(6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU
(1 << 2) | //opcode
(C67_map_regs(b) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "CMPLTSP") == s) {
xpath = C67_map_regs(a) ^ C67_map_regs(b);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x use cross path for src2
(0x3a << 6) | //opcode
(0x8 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side for reg c
(0 << 0)); //parallel
} else if (strstr(s, "CMPGTSP") == s) {
xpath = C67_map_regs(a) ^ C67_map_regs(b);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x use cross path for src2
(0x39 << 6) | //opcode
(0x8 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side for reg c
(0 << 0)); //parallel
} else if (strstr(s, "CMPEQSP") == s) {
xpath = C67_map_regs(a) ^ C67_map_regs(b);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x use cross path for src2
(0x38 << 6) | //opcode
(0x8 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side for reg c
(0 << 0)); //parallel
}
else if (strstr(s, "CMPLTDP") == s) {
xpath = C67_map_regs(a) ^ C67_map_regs(b);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x use cross path for src2
(0x2a << 6) | //opcode
(0x8 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side for reg c
(0 << 0)); //parallel
} else if (strstr(s, "CMPGTDP") == s) {
xpath = C67_map_regs(a) ^ C67_map_regs(b);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x use cross path for src2
(0x29 << 6) | //opcode
(0x8 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side for reg c
(0 << 0)); //parallel
} else if (strstr(s, "CMPEQDP") == s) {
xpath = C67_map_regs(a) ^ C67_map_regs(b);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x use cross path for src2
(0x28 << 6) | //opcode
(0x8 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side for reg c
(0 << 0)); //parallel
} else if (strstr(s, "CMPLT") == s) {
xpath = C67_map_regs(a) ^ C67_map_regs(b);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x use cross path for src2
(0x57 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side for reg c
(0 << 0)); //parallel
} else if (strstr(s, "CMPGT") == s) {
xpath = C67_map_regs(a) ^ C67_map_regs(b);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x use cross path for src2
(0x47 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side for reg c
(0 << 0)); //parallel
} else if (strstr(s, "CMPEQ") == s) {
xpath = C67_map_regs(a) ^ C67_map_regs(b);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x use cross path for src2
(0x53 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side for reg c
(0 << 0)); //parallel
} else if (strstr(s, "CMPLTU") == s) {
xpath = C67_map_regs(a) ^ C67_map_regs(b);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x use cross path for src2
(0x5f << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side for reg c
(0 << 0)); //parallel
} else if (strstr(s, "CMPGTU") == s) {
xpath = C67_map_regs(a) ^ C67_map_regs(b);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x use cross path for src2
(0x4f << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side for reg c
(0 << 0)); //parallel
} else if (strstr(s, "B DISP") == s) {
C67_g((0 << 29) | //creg
(0 << 28) | //z
(a << 7) | //cnst
(0x4 << 2) | //opcode fixed
(0 << 1) | //S0/S1
(0 << 0)); //parallel
} else if (strstr(s, "B.") == s) {
xpath = C67_map_regs(c) ^ 1;
C67_g((C67_map_regc(b) << 29) | //creg
(a << 28) | //inv
(0 << 23) | //dst
(C67_map_regn(c) << 18) | //src2
(0 << 13) | //
(xpath << 12) | //x cross path if !B side
(0xd << 6) | //opcode
(0x8 << 2) | //opcode fixed
(1 << 1) | //must be S2
(0 << 0)); //parallel
} else if (strstr(s, "MV.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(0 << 13) | //src1 (cst5)
(xpath << 12) | //x cross path if opposite sides
(0x2 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "SPTRUNC.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(0 << 13) | //src1 NA
(xpath << 12) | //x cross path if opposite sides
(0xb << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "DPTRUNC.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
((C67_map_regn(b) + 1) << 18) | //src2 WEIRD CPU must specify odd reg for some reason
(0 << 13) | //src1 NA
(xpath << 12) | //x cross path if opposite sides
(0x1 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "INTSP.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(0 << 13) | //src1 NA
(xpath << 12) | //x cross path if opposite sides
(0x4a << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "INTSPU.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(0 << 13) | //src1 NA
(xpath << 12) | //x cross path if opposite sides
(0x49 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "INTDP.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(0 << 13) | //src1 NA
(xpath << 12) | //x cross path if opposite sides
(0x39 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "INTDPU.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
((C67_map_regn(b) + 1) << 18) | //src2 WEIRD CPU must specify odd reg for some reason
(0 << 13) | //src1 NA
(xpath << 12) | //x cross path if opposite sides
(0x3b << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "SPDP.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(0 << 13) | //src1 NA
(xpath << 12) | //x cross path if opposite sides
(0x2 << 6) | //opcode
(0x8 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "DPSP.L") == s) {
ALWAYS_ASSERT(C67_map_regs(b) == C67_map_regs(c));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
((C67_map_regn(b) + 1) << 18) | //src2 WEIRD CPU must specify odd reg for some reason
(0 << 13) | //src1 NA
(0 << 12) | //x cross path if opposite sides
(0x9 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "ADD.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2 (possible x path)
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x3 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "SUB.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2 (possible x path)
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x7 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "OR.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2 (possible x path)
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x7f << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "AND.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2 (possible x path)
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x7b << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "XOR.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2 (possible x path)
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x6f << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "ADDSP.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2 (possible x path)
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x10 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "ADDDP.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2 (possible x path)
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x18 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "SUBSP.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2 (possible x path)
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x11 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "SUBDP.L") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2 (possible x path)
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x19 << 5) | //opcode
(0x6 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "MPYSP.M") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2 (possible x path)
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x1c << 7) | //opcode
(0x0 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "MPYDP.M") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2 (possible x path)
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x0e << 7) | //opcode
(0x0 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "MPYI.M") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1 (cst5)
(xpath << 12) | //x cross path if opposite sides
(0x4 << 7) | //opcode
(0x0 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "SHR.S") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x37 << 6) | //opcode
(0x8 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "SHRU.S") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x27 << 6) | //opcode
(0x8 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "SHL.S") == s) {
xpath = C67_map_regs(b) ^ C67_map_regs(c);
ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a));
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(c) << 23) | //dst
(C67_map_regn(b) << 18) | //src2
(C67_map_regn(a) << 13) | //src1
(xpath << 12) | //x cross path if opposite sides
(0x33 << 6) | //opcode
(0x8 << 2) | //opcode fixed
(C67_map_regs(c) << 1) | //side of dest
(0 << 0)); //parallel
} else if (strstr(s, "||ADDK") == s) {
xpath = 0; // no xpath required just use the side of the src/dst
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(b) << 23) | //dst
(a << 07) | //scst16
(0x14 << 2) | //opcode fixed
(C67_map_regs(b) << 1) | //side of dst
(1 << 0)); //parallel
} else if (strstr(s, "ADDK") == s) {
xpath = 0; // no xpath required just use the side of the src/dst
C67_g((0 << 29) | //creg
(0 << 28) | //inv
(C67_map_regn(b) << 23) | //dst
(a << 07) | //scst16
(0x14 << 2) | //opcode fixed
(C67_map_regs(b) << 1) | //side of dst
(0 << 0)); //parallel
} else if (strstr(s, "NOP") == s) {
C67_g(((a - 1) << 13) | //no of cycles
(0 << 0)); //parallel
} else
ALWAYS_ASSERT(FALSE);
#ifdef ASSEMBLY_LISTING_C67
fprintf(f, " %s %d %d %d\n", s, a, b, c);
#endif
}
//r=reg to load, fr=from reg, symbol for relocation, constant
void C67_MVKL(int r, int fc)
{
C67_asm("MVKL.", fc, r, 0);
}
void C67_MVKH(int r, int fc)
{
C67_asm("MVKH.", fc, r, 0);
}
void C67_STB_SP_A0(int r)
{
C67_asm("STB.D *+SP[A0]", r, 0, 0); // STB r,*+SP[A0]
}
void C67_STH_SP_A0(int r)
{
C67_asm("STH.D *+SP[A0]", r, 0, 0); // STH r,*+SP[A0]
}
void C67_STW_SP_A0(int r)
{
C67_asm("STW.D *+SP[A0]", r, 0, 0); // STW r,*+SP[A0]
}
void C67_STB_PTR(int r, int r2)
{
C67_asm("STB.D *", r, r2, 0); // STB r, *r2
}
void C67_STH_PTR(int r, int r2)
{
C67_asm("STH.D *", r, r2, 0); // STH r, *r2
}
void C67_STW_PTR(int r, int r2)
{
C67_asm("STW.D *", r, r2, 0); // STW r, *r2
}
void C67_STW_PTR_PRE_INC(int r, int r2, int n)
{
C67_asm("STW.D +*", r, r2, n); // STW r, *+r2
}
void C67_PUSH(int r)
{
C67_asm("STW.D SP POST DEC", r, 0, 0); // STW r,*SP--
}
void C67_LDW_SP_A0(int r)
{
C67_asm("LDW.D *+SP[A0]", r, 0, 0); // LDW *+SP[A0],r
}
void C67_LDDW_SP_A0(int r)
{
C67_asm("LDDW.D *+SP[A0]", r, 0, 0); // LDDW *+SP[A0],r
}
void C67_LDH_SP_A0(int r)
{
C67_asm("LDH.D *+SP[A0]", r, 0, 0); // LDH *+SP[A0],r
}
void C67_LDB_SP_A0(int r)
{
C67_asm("LDB.D *+SP[A0]", r, 0, 0); // LDB *+SP[A0],r
}
void C67_LDHU_SP_A0(int r)
{
C67_asm("LDHU.D *+SP[A0]", r, 0, 0); // LDHU *+SP[A0],r
}
void C67_LDBU_SP_A0(int r)
{
C67_asm("LDBU.D *+SP[A0]", r, 0, 0); // LDBU *+SP[A0],r
}
void C67_LDW_PTR(int r, int r2)
{
C67_asm("LDW.D *", r, r2, 0); // LDW *r,r2
}
void C67_LDDW_PTR(int r, int r2)
{
C67_asm("LDDW.D *", r, r2, 0); // LDDW *r,r2
}
void C67_LDH_PTR(int r, int r2)
{
C67_asm("LDH.D *", r, r2, 0); // LDH *r,r2
}
void C67_LDB_PTR(int r, int r2)
{
C67_asm("LDB.D *", r, r2, 0); // LDB *r,r2
}
void C67_LDHU_PTR(int r, int r2)
{
C67_asm("LDHU.D *", r, r2, 0); // LDHU *r,r2
}
void C67_LDBU_PTR(int r, int r2)
{
C67_asm("LDBU.D *", r, r2, 0); // LDBU *r,r2
}
void C67_LDW_PTR_PRE_INC(int r, int r2)
{
C67_asm("LDW.D +*", r, r2, 0); // LDW *+r,r2
}
void C67_POP(int r)
{
C67_asm("LDW.D SP PRE INC", r, 0, 0); // LDW *++SP,r
}
void C67_POP_DW(int r)
{
C67_asm("LDDW.D SP PRE INC", r, 0, 0); // LDDW *++SP,r
}
void C67_CMPLT(int s1, int s2, int dst)
{
C67_asm("CMPLT.L1", s1, s2, dst);
}
void C67_CMPGT(int s1, int s2, int dst)
{
C67_asm("CMPGT.L1", s1, s2, dst);
}
void C67_CMPEQ(int s1, int s2, int dst)
{
C67_asm("CMPEQ.L1", s1, s2, dst);
}
void C67_CMPLTU(int s1, int s2, int dst)
{
C67_asm("CMPLTU.L1", s1, s2, dst);
}
void C67_CMPGTU(int s1, int s2, int dst)
{
C67_asm("CMPGTU.L1", s1, s2, dst);
}
void C67_CMPLTSP(int s1, int s2, int dst)
{
C67_asm("CMPLTSP.S1", s1, s2, dst);
}
void C67_CMPGTSP(int s1, int s2, int dst)
{
C67_asm("CMPGTSP.S1", s1, s2, dst);
}
void C67_CMPEQSP(int s1, int s2, int dst)
{
C67_asm("CMPEQSP.S1", s1, s2, dst);
}
void C67_CMPLTDP(int s1, int s2, int dst)
{
C67_asm("CMPLTDP.S1", s1, s2, dst);
}
void C67_CMPGTDP(int s1, int s2, int dst)
{
C67_asm("CMPGTDP.S1", s1, s2, dst);
}
void C67_CMPEQDP(int s1, int s2, int dst)
{
C67_asm("CMPEQDP.S1", s1, s2, dst);
}
void C67_IREG_B_REG(int inv, int r1, int r2) // [!R] B r2
{
C67_asm("B.S2", inv, r1, r2);
}
// call with how many 32 bit words to skip
// (0 would branch to the branch instruction)
void C67_B_DISP(int disp) // B +2 Branch with constant displacement
{
// Branch point is relative to the 8 word fetch packet
//
// we will assume the text section always starts on an 8 word (32 byte boundary)
//
// so add in how many words into the fetch packet the branch is
C67_asm("B DISP", disp + ((ind & 31) >> 2), 0, 0);
}
void C67_NOP(int n)
{
C67_asm("NOP", n, 0, 0);
}
void C67_ADDK(int n, int r)
{
ALWAYS_ASSERT(abs(n) < 32767);
C67_asm("ADDK", n, r, 0);
}
void C67_ADDK_PARALLEL(int n, int r)
{
ALWAYS_ASSERT(abs(n) < 32767);
C67_asm("||ADDK", n, r, 0);
}
void C67_Adjust_ADDK(int *inst, int n)
{
ALWAYS_ASSERT(abs(n) < 32767);
*inst = (*inst & (~(0xffff << 7))) | ((n & 0xffff) << 7);
}
void C67_MV(int r, int v)
{
C67_asm("MV.L", 0, r, v);
}
void C67_DPTRUNC(int r, int v)
{
C67_asm("DPTRUNC.L", 0, r, v);
}
void C67_SPTRUNC(int r, int v)
{
C67_asm("SPTRUNC.L", 0, r, v);
}
void C67_INTSP(int r, int v)
{
C67_asm("INTSP.L", 0, r, v);
}
void C67_INTDP(int r, int v)
{
C67_asm("INTDP.L", 0, r, v);
}
void C67_INTSPU(int r, int v)
{
C67_asm("INTSPU.L", 0, r, v);
}
void C67_INTDPU(int r, int v)
{
C67_asm("INTDPU.L", 0, r, v);
}
void C67_SPDP(int r, int v)
{
C67_asm("SPDP.L", 0, r, v);
}
void C67_DPSP(int r, int v) // note regs must be on the same side
{
C67_asm("DPSP.L", 0, r, v);
}
void C67_ADD(int r, int v)
{
C67_asm("ADD.L", v, r, v);
}
void C67_SUB(int r, int v)
{
C67_asm("SUB.L", v, r, v);
}
void C67_AND(int r, int v)
{
C67_asm("AND.L", v, r, v);
}
void C67_OR(int r, int v)
{
C67_asm("OR.L", v, r, v);
}
void C67_XOR(int r, int v)
{
C67_asm("XOR.L", v, r, v);
}
void C67_ADDSP(int r, int v)
{
C67_asm("ADDSP.L", v, r, v);
}
void C67_SUBSP(int r, int v)
{
C67_asm("SUBSP.L", v, r, v);
}
void C67_MPYSP(int r, int v)
{
C67_asm("MPYSP.M", v, r, v);
}
void C67_ADDDP(int r, int v)
{
C67_asm("ADDDP.L", v, r, v);
}
void C67_SUBDP(int r, int v)
{
C67_asm("SUBDP.L", v, r, v);
}
void C67_MPYDP(int r, int v)
{
C67_asm("MPYDP.M", v, r, v);
}
void C67_MPYI(int r, int v)
{
C67_asm("MPYI.M", v, r, v);
}
void C67_SHL(int r, int v)
{
C67_asm("SHL.S", r, v, v);
}
void C67_SHRU(int r, int v)
{
C67_asm("SHRU.S", r, v, v);
}
void C67_SHR(int r, int v)
{
C67_asm("SHR.S", r, v, v);
}
/* load 'r' from value 'sv' */
void load(int r, SValue * sv)
{
int v, t, ft, fc, fr, size = 0, element;
BOOL Unsigned = FALSE;
SValue v1;
fr = sv->r;
ft = sv->type.t;
fc = sv->c.i;
v = fr & VT_VALMASK;
if (fr & VT_LVAL) {
if (v == VT_LLOCAL) {
v1.type.t = VT_INT;
v1.r = VT_LOCAL | VT_LVAL;
v1.c.i = fc;
load(r, &v1);
fr = r;
} else if ((ft & VT_BTYPE) == VT_LDOUBLE) {
tcc_error("long double not supported");
} else if ((ft & VT_TYPE) == VT_BYTE) {
size = 1;
} else if ((ft & VT_TYPE) == (VT_BYTE | VT_UNSIGNED)) {
size = 1;
Unsigned = TRUE;
} else if ((ft & VT_TYPE) == VT_SHORT) {
size = 2;
} else if ((ft & VT_TYPE) == (VT_SHORT | VT_UNSIGNED)) {
size = 2;
Unsigned = TRUE;
} else if ((ft & VT_BTYPE) == VT_DOUBLE) {
size = 8;
} else {
size = 4;
}
// check if fc is a positive reference on the stack,
// if it is tcc is referencing what it thinks is a parameter
// on the stack, so check if it is really in a register.
if (v == VT_LOCAL && fc > 0) {
int stack_pos = 8;
for (t = 0; t < NoCallArgsPassedOnStack; t++) {
if (fc == stack_pos)
break;
stack_pos += TranslateStackToReg[t];
}
// param has been pushed on stack, get it like a local var
fc = ParamLocOnStack[t] - 8;
}
if ((fr & VT_VALMASK) < VT_CONST) // check for pure indirect
{
if (size == 1) {
if (Unsigned)
C67_LDBU_PTR(v, r); // LDBU *v,r
else
C67_LDB_PTR(v, r); // LDB *v,r
} else if (size == 2) {
if (Unsigned)
C67_LDHU_PTR(v, r); // LDHU *v,r
else
C67_LDH_PTR(v, r); // LDH *v,r
} else if (size == 4) {
C67_LDW_PTR(v, r); // LDW *v,r
} else if (size == 8) {
C67_LDDW_PTR(v, r); // LDDW *v,r
}
C67_NOP(4); // NOP 4
return;
} else if (fr & VT_SYM) {
greloc(cur_text_section, sv->sym, ind, R_C60LO16); // rem the inst need to be patched
greloc(cur_text_section, sv->sym, ind + 4, R_C60HI16);
C67_MVKL(C67_A0, fc); //r=reg to load, constant
C67_MVKH(C67_A0, fc); //r=reg to load, constant
if (size == 1) {
if (Unsigned)
C67_LDBU_PTR(C67_A0, r); // LDBU *A0,r
else
C67_LDB_PTR(C67_A0, r); // LDB *A0,r
} else if (size == 2) {
if (Unsigned)
C67_LDHU_PTR(C67_A0, r); // LDHU *A0,r
else
C67_LDH_PTR(C67_A0, r); // LDH *A0,r
} else if (size == 4) {
C67_LDW_PTR(C67_A0, r); // LDW *A0,r
} else if (size == 8) {
C67_LDDW_PTR(C67_A0, r); // LDDW *A0,r
}
C67_NOP(4); // NOP 4
return;
} else {
element = size;
// divide offset in bytes to create element index
C67_MVKL(C67_A0, (fc / element) + 8 / element); //r=reg to load, constant
C67_MVKH(C67_A0, (fc / element) + 8 / element); //r=reg to load, constant
if (size == 1) {
if (Unsigned)
C67_LDBU_SP_A0(r); // LDBU r, SP[A0]
else
C67_LDB_SP_A0(r); // LDB r, SP[A0]
} else if (size == 2) {
if (Unsigned)
C67_LDHU_SP_A0(r); // LDHU r, SP[A0]
else
C67_LDH_SP_A0(r); // LDH r, SP[A0]
} else if (size == 4) {
C67_LDW_SP_A0(r); // LDW r, SP[A0]
} else if (size == 8) {
C67_LDDW_SP_A0(r); // LDDW r, SP[A0]
}
C67_NOP(4); // NOP 4
return;
}
} else {
if (v == VT_CONST) {
if (fr & VT_SYM) {
greloc(cur_text_section, sv->sym, ind, R_C60LO16); // rem the inst need to be patched
greloc(cur_text_section, sv->sym, ind + 4, R_C60HI16);
}
C67_MVKL(r, fc); //r=reg to load, constant
C67_MVKH(r, fc); //r=reg to load, constant
} else if (v == VT_LOCAL) {
C67_MVKL(r, fc + 8); //r=reg to load, constant C67 stack points to next free
C67_MVKH(r, fc + 8); //r=reg to load, constant
C67_ADD(C67_FP, r); // MV v,r v -> r
} else if (v == VT_CMP) {
C67_MV(C67_compare_reg, r); // MV v,r v -> r
} else if (v == VT_JMP || v == VT_JMPI) {
t = v & 1;
C67_B_DISP(4); // Branch with constant displacement, skip over this branch, load, nop, load
C67_MVKL(r, t); // r=reg to load, 0 or 1 (do this while branching)
C67_NOP(4); // NOP 4
gsym(fc); // modifies other branches to branch here
C67_MVKL(r, t ^ 1); // r=reg to load, 0 or 1
} else if (v != r) {
C67_MV(v, r); // MV v,r v -> r
if ((ft & VT_BTYPE) == VT_DOUBLE)
C67_MV(v + 1, r + 1); // MV v,r v -> r
}
}
}
/* store register 'r' in lvalue 'v' */
void store(int r, SValue * v)
{
int fr, bt, ft, fc, size, t, element;
ft = v->type.t;
fc = v->c.i;
fr = v->r & VT_VALMASK;
bt = ft & VT_BTYPE;
/* XXX: incorrect if float reg to reg */
if (bt == VT_LDOUBLE) {
tcc_error("long double not supported");
} else {
if (bt == VT_SHORT)
size = 2;
else if (bt == VT_BYTE)
size = 1;
else if (bt == VT_DOUBLE)
size = 8;
else
size = 4;
if ((v->r & VT_VALMASK) == VT_CONST) {
/* constant memory reference */
if (v->r & VT_SYM) {
greloc(cur_text_section, v->sym, ind, R_C60LO16); // rem the inst need to be patched
greloc(cur_text_section, v->sym, ind + 4, R_C60HI16);
}
C67_MVKL(C67_A0, fc); //r=reg to load, constant
C67_MVKH(C67_A0, fc); //r=reg to load, constant
if (size == 1)
C67_STB_PTR(r, C67_A0); // STB r, *A0
else if (size == 2)
C67_STH_PTR(r, C67_A0); // STH r, *A0
else if (size == 4 || size == 8)
C67_STW_PTR(r, C67_A0); // STW r, *A0
if (size == 8)
C67_STW_PTR_PRE_INC(r + 1, C67_A0, 1); // STW r, *+A0[1]
} else if ((v->r & VT_VALMASK) == VT_LOCAL) {
// check case of storing to passed argument that
// tcc thinks is on the stack but for C67 is
// passed as a reg. However it may have been
// saved to the stack, if that reg was required
// for a call to a child function
if (fc > 0) // argument ??
{
// walk through sizes and figure which param
int stack_pos = 8;
for (t = 0; t < NoCallArgsPassedOnStack; t++) {
if (fc == stack_pos)
break;
stack_pos += TranslateStackToReg[t];
}
// param has been pushed on stack, get it like a local var
fc = ParamLocOnStack[t] - 8;
}
if (size == 8)
element = 4;
else
element = size;
// divide offset in bytes to create word index
C67_MVKL(C67_A0, (fc / element) + 8 / element); //r=reg to load, constant
C67_MVKH(C67_A0, (fc / element) + 8 / element); //r=reg to load, constant
if (size == 1)
C67_STB_SP_A0(r); // STB r, SP[A0]
else if (size == 2)
C67_STH_SP_A0(r); // STH r, SP[A0]
else if (size == 4 || size == 8)
C67_STW_SP_A0(r); // STW r, SP[A0]
if (size == 8) {
C67_ADDK(1, C67_A0); // ADDK 1,A0
C67_STW_SP_A0(r + 1); // STW r, SP[A0]
}
} else {
if (size == 1)
C67_STB_PTR(r, fr); // STB r, *fr
else if (size == 2)
C67_STH_PTR(r, fr); // STH r, *fr
else if (size == 4 || size == 8)
C67_STW_PTR(r, fr); // STW r, *fr
if (size == 8) {
C67_STW_PTR_PRE_INC(r + 1, fr, 1); // STW r, *+fr[1]
}
}
}
}
/* 'is_jmp' is '1' if it is a jump */
static void gcall_or_jmp(int is_jmp)
{
int r;
Sym *sym;
if ((vtop->r & (VT_VALMASK | VT_LVAL)) == VT_CONST) {
/* constant case */
if (vtop->r & VT_SYM) {
/* relocation case */
// get add into A0, then start the jump B3
greloc(cur_text_section, vtop->sym, ind, R_C60LO16); // rem the inst need to be patched
greloc(cur_text_section, vtop->sym, ind + 4, R_C60HI16);
C67_MVKL(C67_A0, 0); //r=reg to load, constant
C67_MVKH(C67_A0, 0); //r=reg to load, constant
C67_IREG_B_REG(0, C67_CREG_ZERO, C67_A0); // B.S2x A0
if (is_jmp) {
C67_NOP(5); // simple jump, just put NOP
} else {
// Call, must load return address into B3 during delay slots
sym = get_sym_ref(&char_pointer_type, cur_text_section, ind + 12, 0); // symbol for return address
greloc(cur_text_section, sym, ind, R_C60LO16); // rem the inst need to be patched
greloc(cur_text_section, sym, ind + 4, R_C60HI16);
C67_MVKL(C67_B3, 0); //r=reg to load, constant
C67_MVKH(C67_B3, 0); //r=reg to load, constant
C67_NOP(3); // put remaining NOPs
}
} else {
/* put an empty PC32 relocation */
ALWAYS_ASSERT(FALSE);
}
} else {
/* otherwise, indirect call */
r = gv(RC_INT);
C67_IREG_B_REG(0, C67_CREG_ZERO, r); // B.S2x r
if (is_jmp) {
C67_NOP(5); // simple jump, just put NOP
} else {
// Call, must load return address into B3 during delay slots
sym = get_sym_ref(&char_pointer_type, cur_text_section, ind + 12, 0); // symbol for return address
greloc(cur_text_section, sym, ind, R_C60LO16); // rem the inst need to be patched
greloc(cur_text_section, sym, ind + 4, R_C60HI16);
C67_MVKL(C67_B3, 0); //r=reg to load, constant
C67_MVKH(C67_B3, 0); //r=reg to load, constant
C67_NOP(3); // put remaining NOPs
}
}
}
/* Return the number of registers needed to return the struct, or 0 if
returning via struct pointer. */
ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *ret_align, int *regsize) {
*ret_align = 1; // Never have to re-align return values for x86-64
return 0;
}
/* generate function call with address in (vtop->t, vtop->c) and free function
context. Stack entry is popped */
void gfunc_call(int nb_args)
{
int i, r, size = 0;
int args_sizes[NoCallArgsPassedOnStack];
if (nb_args > NoCallArgsPassedOnStack) {
tcc_error("more than 10 function params not currently supported");
// handle more than 10, put some on the stack
}
for (i = 0; i < nb_args; i++) {
if ((vtop->type.t & VT_BTYPE) == VT_STRUCT) {
ALWAYS_ASSERT(FALSE);
} else {
/* simple type (currently always same size) */
/* XXX: implicit cast ? */
if ((vtop->type.t & VT_BTYPE) == VT_LLONG) {
tcc_error("long long not supported");
} else if ((vtop->type.t & VT_BTYPE) == VT_LDOUBLE) {
tcc_error("long double not supported");
} else if ((vtop->type.t & VT_BTYPE) == VT_DOUBLE) {
size = 8;
} else {
size = 4;
}
// put the parameter into the corresponding reg (pair)
r = gv(RC_C67_A4 << (2 * i));
// must put on stack because with 1 pass compiler , no way to tell
// if an up coming nested call might overwrite these regs
C67_PUSH(r);
if (size == 8) {
C67_STW_PTR_PRE_INC(r + 1, C67_SP, 3); // STW r, *+SP[3] (go back and put the other)
}
args_sizes[i] = size;
}
vtop--;
}
// POP all the params on the stack into registers for the
// immediate call (in reverse order)
for (i = nb_args - 1; i >= 0; i--) {
if (args_sizes[i] == 8)
C67_POP_DW(TREG_C67_A4 + i * 2);
else
C67_POP(TREG_C67_A4 + i * 2);
}
gcall_or_jmp(0);
vtop--;
}
// to be compatible with Code Composer for the C67
// the first 10 parameters must be passed in registers
// (pairs for 64 bits) starting wit; A4:A5, then B4:B5 and
// ending with B12:B13.
//
// When a call is made, if the caller has its parameters
// in regs A4-B13 these must be saved before/as the call
// parameters are loaded and restored upon return (or if/when needed).
/* generate function prolog of type 't' */
void gfunc_prolog(CType * func_type)
{
int addr, align, size, func_call, i;
Sym *sym;
CType *type;
sym = func_type->ref;
func_call = sym->f.func_call;
addr = 8;
/* if the function returns a structure, then add an
implicit pointer parameter */
func_vt = sym->type;
func_var = (sym->f.func_type == FUNC_ELLIPSIS);
if ((func_vt.t & VT_BTYPE) == VT_STRUCT) {
func_vc = addr;
addr += 4;
}
NoOfCurFuncArgs = 0;
/* define parameters */
while ((sym = sym->next) != NULL) {
type = &sym->type;
sym_push(sym->v & ~SYM_FIELD, type, VT_LOCAL | lvalue_type(type->t), addr);
size = type_size(type, &align);
size = (size + 3) & ~3;
// keep track of size of arguments so
// we can translate where tcc thinks they
// are on the stack into the appropriate reg
TranslateStackToReg[NoOfCurFuncArgs] = size;
NoOfCurFuncArgs++;
#ifdef FUNC_STRUCT_PARAM_AS_PTR
/* structs are passed as pointer */
if ((type->t & VT_BTYPE) == VT_STRUCT) {
size = 4;
}
#endif
addr += size;
}
func_ret_sub = 0;
/* pascal type call ? */
if (func_call == FUNC_STDCALL)
func_ret_sub = addr - 8;
C67_MV(C67_FP, C67_A0); // move FP -> A0
C67_MV(C67_SP, C67_FP); // move SP -> FP
// place all the args passed in regs onto the stack
loc = 0;
for (i = 0; i < NoOfCurFuncArgs; i++) {
ParamLocOnStack[i] = loc; // remember where the param is
loc += -8;
C67_PUSH(TREG_C67_A4 + i * 2);
if (TranslateStackToReg[i] == 8) {
C67_STW_PTR_PRE_INC(TREG_C67_A4 + i * 2 + 1, C67_SP, 3); // STW r, *+SP[1] (go back and put the other)
}
}
TotalBytesPushedOnStack = -loc;
func_sub_sp_offset = ind; // remember where we put the stack instruction
C67_ADDK(0, C67_SP); // ADDK.L2 loc,SP (just put zero temporarily)
C67_PUSH(C67_A0);
C67_PUSH(C67_B3);
}
/* generate function epilog */
void gfunc_epilog(void)
{
{
int local = (-loc + 7) & -8; // stack must stay aligned to 8 bytes for LDDW instr
C67_POP(C67_B3);
C67_NOP(4); // NOP wait for load
C67_IREG_B_REG(0, C67_CREG_ZERO, C67_B3); // B.S2 B3
C67_POP(C67_FP);
C67_ADDK(local, C67_SP); // ADDK.L2 loc,SP
C67_Adjust_ADDK((int *) (cur_text_section->data +
func_sub_sp_offset),
-local + TotalBytesPushedOnStack);
C67_NOP(3); // NOP
}
}
ST_FUNC void gen_fill_nops(int bytes)
{
if ((bytes & 3))
tcc_error("alignment of code section not multiple of 4");
while (bytes > 0) {
C67_NOP(4);
bytes -= 4;
}
}
/* generate a jump to a label */
int gjmp(int t)
{
int ind1 = ind;
if (nocode_wanted)
return t;
C67_MVKL(C67_A0, t); //r=reg to load, constant
C67_MVKH(C67_A0, t); //r=reg to load, constant
C67_IREG_B_REG(0, C67_CREG_ZERO, C67_A0); // [!R] B.S2x A0
C67_NOP(5);
return ind1;
}
/* generate a jump to a fixed address */
void gjmp_addr(int a)
{
Sym *sym;
// I guess this routine is used for relative short
// local jumps, for now just handle it as the general
// case
// define a label that will be relocated
sym = get_sym_ref(&char_pointer_type, cur_text_section, a, 0);
greloc(cur_text_section, sym, ind, R_C60LO16);
greloc(cur_text_section, sym, ind + 4, R_C60HI16);
gjmp(0); // place a zero there later the symbol will be added to it
}
/* generate a test. set 'inv' to invert test. Stack entry is popped */
int gtst(int inv, int t)
{
int ind1, n;
int v, *p;
v = vtop->r & VT_VALMASK;
if (nocode_wanted) {
;
} else if (v == VT_CMP) {
/* fast case : can jump directly since flags are set */
// C67 uses B2 sort of as flags register
ind1 = ind;
C67_MVKL(C67_A0, t); //r=reg to load, constant
C67_MVKH(C67_A0, t); //r=reg to load, constant
if (C67_compare_reg != TREG_EAX && // check if not already in a conditional test reg
C67_compare_reg != TREG_EDX &&
C67_compare_reg != TREG_ST0 && C67_compare_reg != C67_B2) {
C67_MV(C67_compare_reg, C67_B2);
C67_compare_reg = C67_B2;
}
C67_IREG_B_REG(C67_invert_test ^ inv, C67_compare_reg, C67_A0); // [!R] B.S2x A0
C67_NOP(5);
t = ind1; //return where we need to patch
} else if (v == VT_JMP || v == VT_JMPI) {
/* && or || optimization */
if ((v & 1) == inv) {
/* insert vtop->c jump list in t */
// I guess the idea is to traverse to the
// null at the end of the list and store t
// there
n = vtop->c.i;
while (n != 0) {
p = (int *) (cur_text_section->data + n);
// extract 32 bit address from MVKH/MVKL
n = ((*p >> 7) & 0xffff);
n |= ((*(p + 1) >> 7) & 0xffff) << 16;
}
*p |= (t & 0xffff) << 7;
*(p + 1) |= ((t >> 16) & 0xffff) << 7;
t = vtop->c.i;
} else {
t = gjmp(t);
gsym(vtop->c.i);
}
}
vtop--;
return t;
}
/* generate an integer binary operation */
void gen_opi(int op)
{
int r, fr, opc, t;
switch (op) {
case '+':
case TOK_ADDC1: /* add with carry generation */
opc = 0;
gen_op8:
// C67 can't do const compares, must load into a reg
// so just go to gv2 directly - tktk
if (op >= TOK_ULT && op <= TOK_GT)
gv2(RC_INT_BSIDE, RC_INT); // make sure r (src1) is on the B Side of CPU
else
gv2(RC_INT, RC_INT);
r = vtop[-1].r;
fr = vtop[0].r;
C67_compare_reg = C67_B2;
if (op == TOK_LT) {
C67_CMPLT(r, fr, C67_B2);
C67_invert_test = FALSE;
} else if (op == TOK_GE) {
C67_CMPLT(r, fr, C67_B2);
C67_invert_test = TRUE;
} else if (op == TOK_GT) {
C67_CMPGT(r, fr, C67_B2);
C67_invert_test = FALSE;
} else if (op == TOK_LE) {
C67_CMPGT(r, fr, C67_B2);
C67_invert_test = TRUE;
} else if (op == TOK_EQ) {
C67_CMPEQ(r, fr, C67_B2);
C67_invert_test = FALSE;
} else if (op == TOK_NE) {
C67_CMPEQ(r, fr, C67_B2);
C67_invert_test = TRUE;
} else if (op == TOK_ULT) {
C67_CMPLTU(r, fr, C67_B2);
C67_invert_test = FALSE;
} else if (op == TOK_UGE) {
C67_CMPLTU(r, fr, C67_B2);
C67_invert_test = TRUE;
} else if (op == TOK_UGT) {
C67_CMPGTU(r, fr, C67_B2);
C67_invert_test = FALSE;
} else if (op == TOK_ULE) {
C67_CMPGTU(r, fr, C67_B2);
C67_invert_test = TRUE;
} else if (op == '+')
C67_ADD(fr, r); // ADD r,fr,r
else if (op == '-')
C67_SUB(fr, r); // SUB r,fr,r
else if (op == '&')
C67_AND(fr, r); // AND r,fr,r
else if (op == '|')
C67_OR(fr, r); // OR r,fr,r
else if (op == '^')
C67_XOR(fr, r); // XOR r,fr,r
else
ALWAYS_ASSERT(FALSE);
vtop--;
if (op >= TOK_ULT && op <= TOK_GT) {
vtop->r = VT_CMP;
vtop->c.i = op;
}
break;
case '-':
case TOK_SUBC1: /* sub with carry generation */
opc = 5;
goto gen_op8;
case TOK_ADDC2: /* add with carry use */
opc = 2;
goto gen_op8;
case TOK_SUBC2: /* sub with carry use */
opc = 3;
goto gen_op8;
case '&':
opc = 4;
goto gen_op8;
case '^':
opc = 6;
goto gen_op8;
case '|':
opc = 1;
goto gen_op8;
case '*':
case TOK_UMULL:
gv2(RC_INT, RC_INT);
r = vtop[-1].r;
fr = vtop[0].r;
vtop--;
C67_MPYI(fr, r); // 32 bit multiply fr,r,fr
C67_NOP(8); // NOP 8 for worst case
break;
case TOK_SHL:
gv2(RC_INT_BSIDE, RC_INT_BSIDE); // shift amount must be on same side as dst
r = vtop[-1].r;
fr = vtop[0].r;
vtop--;
C67_SHL(fr, r); // arithmetic/logical shift
break;
case TOK_SHR:
gv2(RC_INT_BSIDE, RC_INT_BSIDE); // shift amount must be on same side as dst
r = vtop[-1].r;
fr = vtop[0].r;
vtop--;
C67_SHRU(fr, r); // logical shift
break;
case TOK_SAR:
gv2(RC_INT_BSIDE, RC_INT_BSIDE); // shift amount must be on same side as dst
r = vtop[-1].r;
fr = vtop[0].r;
vtop--;
C67_SHR(fr, r); // arithmetic shift
break;
case '/':
t = TOK__divi;
call_func:
vswap();
/* call generic idiv function */
vpush_global_sym(&func_old_type, t);
vrott(3);
gfunc_call(2);
vpushi(0);
vtop->r = REG_IRET;
vtop->r2 = VT_CONST;
break;
case TOK_UDIV:
case TOK_PDIV:
t = TOK__divu;
goto call_func;
case '%':
t = TOK__remi;
goto call_func;
case TOK_UMOD:
t = TOK__remu;
goto call_func;
default:
opc = 7;
goto gen_op8;
}
}
/* generate a floating point operation 'v = t1 op t2' instruction. The
two operands are guaranteed to have the same floating point type */
/* XXX: need to use ST1 too */
void gen_opf(int op)
{
int ft, fc, fr, r;
if (op >= TOK_ULT && op <= TOK_GT)
gv2(RC_EDX, RC_EAX); // make sure src2 is on b side
else
gv2(RC_FLOAT, RC_FLOAT); // make sure src2 is on b side
ft = vtop->type.t;
fc = vtop->c.i;
r = vtop->r;
fr = vtop[-1].r;
if ((ft & VT_BTYPE) == VT_LDOUBLE)
tcc_error("long doubles not supported");
if (op >= TOK_ULT && op <= TOK_GT) {
r = vtop[-1].r;
fr = vtop[0].r;
C67_compare_reg = C67_B2;
if (op == TOK_LT) {
if ((ft & VT_BTYPE) == VT_DOUBLE)
C67_CMPLTDP(r, fr, C67_B2);
else
C67_CMPLTSP(r, fr, C67_B2);
C67_invert_test = FALSE;
} else if (op == TOK_GE) {
if ((ft & VT_BTYPE) == VT_DOUBLE)
C67_CMPLTDP(r, fr, C67_B2);
else
C67_CMPLTSP(r, fr, C67_B2);
C67_invert_test = TRUE;
} else if (op == TOK_GT) {
if ((ft & VT_BTYPE) == VT_DOUBLE)
C67_CMPGTDP(r, fr, C67_B2);
else
C67_CMPGTSP(r, fr, C67_B2);
C67_invert_test = FALSE;
} else if (op == TOK_LE) {
if ((ft & VT_BTYPE) == VT_DOUBLE)
C67_CMPGTDP(r, fr, C67_B2);
else
C67_CMPGTSP(r, fr, C67_B2);
C67_invert_test = TRUE;
} else if (op == TOK_EQ) {
if ((ft & VT_BTYPE) == VT_DOUBLE)
C67_CMPEQDP(r, fr, C67_B2);
else
C67_CMPEQSP(r, fr, C67_B2);
C67_invert_test = FALSE;
} else if (op == TOK_NE) {
if ((ft & VT_BTYPE) == VT_DOUBLE)
C67_CMPEQDP(r, fr, C67_B2);
else
C67_CMPEQSP(r, fr, C67_B2);
C67_invert_test = TRUE;
} else {
ALWAYS_ASSERT(FALSE);
}
vtop->r = VT_CMP; // tell TCC that result is in "flags" actually B2
} else {
if (op == '+') {
if ((ft & VT_BTYPE) == VT_DOUBLE) {
C67_ADDDP(r, fr); // ADD fr,r,fr
C67_NOP(6);
} else {
C67_ADDSP(r, fr); // ADD fr,r,fr
C67_NOP(3);
}
vtop--;
} else if (op == '-') {
if ((ft & VT_BTYPE) == VT_DOUBLE) {
C67_SUBDP(r, fr); // SUB fr,r,fr
C67_NOP(6);
} else {
C67_SUBSP(r, fr); // SUB fr,r,fr
C67_NOP(3);
}
vtop--;
} else if (op == '*') {
if ((ft & VT_BTYPE) == VT_DOUBLE) {
C67_MPYDP(r, fr); // MPY fr,r,fr
C67_NOP(9);
} else {
C67_MPYSP(r, fr); // MPY fr,r,fr
C67_NOP(3);
}
vtop--;
} else if (op == '/') {
if ((ft & VT_BTYPE) == VT_DOUBLE) {
// must call intrinsic DP floating point divide
vswap();
/* call generic idiv function */
vpush_global_sym(&func_old_type, TOK__divd);
vrott(3);
gfunc_call(2);
vpushi(0);
vtop->r = REG_FRET;
vtop->r2 = REG_LRET;
} else {
// must call intrinsic SP floating point divide
vswap();
/* call generic idiv function */
vpush_global_sym(&func_old_type, TOK__divf);
vrott(3);
gfunc_call(2);
vpushi(0);
vtop->r = REG_FRET;
vtop->r2 = VT_CONST;
}
} else
ALWAYS_ASSERT(FALSE);
}
}
/* convert integers to fp 't' type. Must handle 'int', 'unsigned int'
and 'long long' cases. */
void gen_cvt_itof(int t)
{
int r;
gv(RC_INT);
r = vtop->r;
if ((t & VT_BTYPE) == VT_DOUBLE) {
if (t & VT_UNSIGNED)
C67_INTDPU(r, r);
else
C67_INTDP(r, r);
C67_NOP(4);
vtop->type.t = VT_DOUBLE;
} else {
if (t & VT_UNSIGNED)
C67_INTSPU(r, r);
else
C67_INTSP(r, r);
C67_NOP(3);
vtop->type.t = VT_FLOAT;
}
}
/* convert fp to int 't' type */
/* XXX: handle long long case */
void gen_cvt_ftoi(int t)
{
int r;
gv(RC_FLOAT);
r = vtop->r;
if (t != VT_INT)
tcc_error("long long not supported");
else {
if ((vtop->type.t & VT_BTYPE) == VT_DOUBLE) {
C67_DPTRUNC(r, r);
C67_NOP(3);
} else {
C67_SPTRUNC(r, r);
C67_NOP(3);
}
vtop->type.t = VT_INT;
}
}
/* convert from one floating point type to another */
void gen_cvt_ftof(int t)
{
int r, r2;
if ((vtop->type.t & VT_BTYPE) == VT_DOUBLE &&
(t & VT_BTYPE) == VT_FLOAT) {
// convert double to float
gv(RC_FLOAT); // get it in a register pair
r = vtop->r;
C67_DPSP(r, r); // convert it to SP same register
C67_NOP(3);
vtop->type.t = VT_FLOAT;
vtop->r2 = VT_CONST; // set this as unused
} else if ((vtop->type.t & VT_BTYPE) == VT_FLOAT &&
(t & VT_BTYPE) == VT_DOUBLE) {
// convert float to double
gv(RC_FLOAT); // get it in a register
r = vtop->r;
if (r == TREG_EAX) { // make sure the paired reg is avail
r2 = get_reg(RC_ECX);
} else if (r == TREG_EDX) {
r2 = get_reg(RC_ST0);
} else {
ALWAYS_ASSERT(FALSE);
r2 = 0; /* avoid warning */
}
C67_SPDP(r, r); // convert it to DP same register
C67_NOP(1);
vtop->type.t = VT_DOUBLE;
vtop->r2 = r2; // set this as unused
} else {
ALWAYS_ASSERT(FALSE);
}
}
/* computed goto support */
void ggoto(void)
{
gcall_or_jmp(1);
vtop--;
}
/* Save the stack pointer onto the stack and return the location of its address */
ST_FUNC void gen_vla_sp_save(int addr) {
tcc_error("variable length arrays unsupported for this target");
}
/* Restore the SP from a location on the stack */
ST_FUNC void gen_vla_sp_restore(int addr) {
tcc_error("variable length arrays unsupported for this target");
}
/* Subtract from the stack pointer, and push the resulting value onto the stack */
ST_FUNC void gen_vla_alloc(CType *type, int align) {
tcc_error("variable length arrays unsupported for this target");
}
/* end of C67 code generator */
/*************************************************************/
#endif
/*************************************************************/
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