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svp compiler direct calls

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@360 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-02-20 21:35:19 +00:00
parent 259ed0ea66
commit e807ac752b
13 changed files with 238 additions and 126 deletions
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72
Pico/carthw/svp/gen_arm.c
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@ -1,5 +1,13 @@
#define EMIT(x) *tcache_ptr++ = x
#define A_R4M (1 << 4)
#define A_R5M (1 << 5)
#define A_R6M (1 << 6)
#define A_R7M (1 << 7)
#define A_R8M (1 << 8)
#define A_R9M (1 << 9)
#define A_R10M (1 << 10)
#define A_R11M (1 << 11)
#define A_R14M (1 << 14)
#define A_COND_AL 0xe
@ -37,6 +45,7 @@
#define EOP_LDR_IMM( rd,rn,offset_12) EOP_C_XXR_IMM(A_COND_AL,1,0,1,rn,rd,offset_12)
#define EOP_LDR_NEGIMM(rd,rn,offset_12) EOP_C_XXR_IMM(A_COND_AL,0,0,1,rn,rd,offset_12)
#define EOP_LDR_SIMPLE(rd,rn) EOP_C_XXR_IMM(A_COND_AL,1,0,1,rn,rd,0)
#define EOP_STR_IMM( rd,rn,offset_12) EOP_C_XXR_IMM(A_COND_AL,1,0,0,rn,rd,offset_12)
#define EOP_STR_SIMPLE(rd,rn) EOP_C_XXR_IMM(A_COND_AL,1,0,0,rn,rd,0)
/* ldm and stm */
@ -52,6 +61,12 @@
#define EOP_BX(rm) EOP_C_BX(A_COND_AL,rm)
#define EOP_C_B(cond,l,signed_immed_24) \
EMIT(((cond)<<28) | 0x0a000000 | ((l)<<24) | (signed_immed_24))
#define EOP_B( signed_immed_24) EOP_C_B(A_COND_AL,0,signed_immed_24)
#define EOP_BL(signed_immed_24) EOP_C_B(A_COND_AL,1,signed_immed_24)
static void emit_mov_const(int d, unsigned int val)
{
@ -72,53 +87,56 @@ static void emit_mov_const(int d, unsigned int val)
EOP_C_DOP_IMM(A_COND_AL,need_or ? A_OP_ORR : A_OP_MOV, 0, need_or ? d : 0, d, 0, val&0xff);
}
/*
static void check_offset_12(unsigned int val)
{
if (!(val & ~0xfff)) return;
printf("offset_12 overflow %04x\n", val);
exit(1);
}
*/
static void check_offset_24(int val)
{
if (val >= (int)0xff000000 && val <= 0x00ffffff) return;
printf("offset_24 overflow %08x\n", val);
exit(1);
}
static void emit_call(void *target)
{
int val = (unsigned int *)target - tcache_ptr - 2;
check_offset_24(val);
EOP_BL(val & 0xffffff); // bl target
}
static void emit_block_prologue(void)
{
// stack LR
EOP_STMFD_ST(A_R14M); // stmfd r13!, {r14}
// stack regs
EOP_STMFD_ST(A_R4M|A_R5M|A_R6M|A_R7M|A_R8M|A_R9M|A_R10M|A_R11M|A_R14M); // stmfd r13!, {r4-r11,lr}
emit_call(regfile_load);
}
static void emit_block_epilogue(unsigned int *block_start, int icount)
static void emit_block_epilogue(int icount)
{
int back = (tcache_ptr - block_start) + 2;
back += 3; // g_cycles
check_offset_12(back<<2);
EOP_LDR_NEGIMM(2,15,back<<2); // ldr r2,[pc,#back]
emit_mov_const(3, icount);
EOP_STR_SIMPLE(3,2); // str r3,[r2]
EOP_LDMFD_ST(A_R14M); // ldmfd r13!, {r14}
emit_call(regfile_store);
EOP_LDMFD_ST(A_R4M|A_R5M|A_R6M|A_R7M|A_R8M|A_R9M|A_R10M|A_R11M|A_R14M); // ldmfd r13!, {r4-r11,lr}
emit_mov_const(0, icount);
EOP_BX(14); // bx r14
}
static void emit_pc_inc(unsigned int *block_start, int pc)
static void emit_pc_dump(int pc)
{
int back = (tcache_ptr - block_start) + 2;
back += 2; // rPC ptr
check_offset_12(back<<2);
EOP_LDR_NEGIMM(2,15,back<<2); // ldr r2,[pc,#back]
emit_mov_const(3, pc<<16);
EOP_STR_SIMPLE(3,2); // str r3,[r2]
EOP_STR_IMM(3,7,0x400+6*4); // str r3, [r7, #(0x400+6*8)]
}
static void emit_call(unsigned int *block_start, unsigned int op1)
static void emit_interpreter_call(void *target)
{
int back = (tcache_ptr - block_start) + 2;
back += 1; // func table
check_offset_12(back<<2);
EOP_LDR_NEGIMM(2,15,back<<2); // ldr r2,[pc,#back]
EOP_MOV_REG_SIMPLE(14,15); // mov lr,pc
EOP_LDR_IMM(15,2,op1<<2); // ldr pc,[r2,#op1]
emit_call(regfile_store);
emit_call(target);
emit_call(regfile_load);
}
static void handle_caches()