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svp compiler: added first wait loop detection

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@363 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-02-24 23:49:06 +00:00
parent 5d817c9138
commit b9c1d0129a
4 changed files with 164 additions and 15 deletions
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9
Pico/carthw/svp/gen_arm.c
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@ -11,6 +11,7 @@
#define A_R14M (1 << 14)
#define A_COND_AL 0xe
#define A_COND_EQ 0x0
/* addressing mode 1 */
#define A_AM1_LSL 0
@ -25,6 +26,7 @@
#define A_OP_AND 0x0
#define A_OP_SUB 0x2
#define A_OP_ADD 0x4
#define A_OP_TST 0x8
#define A_OP_ORR 0xc
#define A_OP_MOV 0xd
#define A_OP_BIC 0xe
@ -44,6 +46,7 @@
#define EOP_MOV_REG(s, rd,shift_imm,shift_op,rm) EOP_C_DOP_REG(A_COND_AL,A_OP_MOV,s, 0,rd,shift_imm,shift_op,rm)
#define EOP_ORR_REG(s,rn,rd,shift_imm,shift_op,rm) EOP_C_DOP_REG(A_COND_AL,A_OP_ORR,s,rn,rd,shift_imm,shift_op,rm)
#define EOP_ADD_REG(s,rn,rd,shift_imm,shift_op,rm) EOP_C_DOP_REG(A_COND_AL,A_OP_ADD,s,rn,rd,shift_imm,shift_op,rm)
#define EOP_TST_REG( rn, shift_imm,shift_op,rm) EOP_C_DOP_REG(A_COND_AL,A_OP_TST,1,rn, 0,shift_imm,shift_op,rm)
#define EOP_MOV_REG_SIMPLE(rd,rm) EOP_MOV_REG(0,rd,0,A_AM1_LSL,rm)
#define EOP_MOV_REG_LSL(rd, rm,shift_imm) EOP_MOV_REG(0,rd,shift_imm,A_AM1_LSL,rm)
@ -61,6 +64,8 @@
#define EOP_ADD_REG_LSL(rd,rn,rm,shift_imm) EOP_ADD_REG(0,rn,rd,shift_imm,A_AM1_LSL,rm)
#define EOP_ADD_REG_LSR(rd,rn,rm,shift_imm) EOP_ADD_REG(0,rn,rd,shift_imm,A_AM1_LSR,rm)
#define EOP_TST_REG_SIMPLE(rn,rm) EOP_TST_REG( rn, 0,A_AM1_LSL,rm)
/* addressing mode 2 */
#define EOP_C_AM2_IMM(cond,u,b,l,rn,rd,offset_12) \
EMIT(((cond)<<28) | 0x05000000 | ((u)<<23) | ((b)<<22) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | (offset_12))
@ -150,13 +155,15 @@ static void emit_block_prologue(void)
// 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);
EOP_MOV_IMM(11, 0, 0); // mov r11, #0
}
static void emit_block_epilogue(int icount)
{
if (icount > 0xff) { printf("large icount: %i\n", icount); icount = 0xff; }
emit_call(regfile_store);
EOP_ADD_IMM(0,11,0,icount); // add r0, r11, #icount
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
}