AlexIndustrial/mesa
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

rtasm: add some helpers for calling out from generated code

Browse Source
This commit is contained in:
Keith Whitwell
2008-05-24 13:22:15 +01:00
parent feceb43948
commit 6b3723ee8d
2 changed files with 47 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/gallium/auxiliary/rtasm/rtasm_x86sse.c
+41 -3
View File
@@ -218,6 +218,8 @@ static void emit_3ub( struct x86_function *p, unsigned char b0, unsigned char b1
/* Build a modRM byte + possible displacement. No treatment of SIB
* indexing. BZZT - no way to encode an absolute address.
*
* This is the "/r" field in the x86 manuals...
*/
static void emit_modrm( struct x86_function *p,
struct x86_reg reg,
@@ -256,7 +258,8 @@ static void emit_modrm( struct x86_function *p,
}
}
/* Emits the "/0".."/7" specialized versions of the modrm ("/r") bytes.
*/
static void emit_modrm_noreg( struct x86_function *p,
unsigned op,
struct x86_reg regmem )
@@ -365,8 +368,7 @@ void x86_jcc( struct x86_function *p,
DUMP_I(cc);
if (offset < 0) {
int amt = p->csr - p->store;
assert(amt > -offset);
assert(p->csr - p->store > -offset);
}
if (offset <= 127 && offset >= -128) {
@@ -443,6 +445,16 @@ void x86_mov_reg_imm( struct x86_function *p, struct x86_reg dst, int imm )
emit_1i(p, imm);
}
void x86_add_reg_imm8( struct x86_function *p, struct x86_reg dst, ubyte imm )
{
DUMP_RI( dst, imm );
assert(dst.mod == mod_REG);
emit_1ub(p, 0x80);
emit_modrm_noreg(p, 0, dst);
emit_1ub(p, imm);
}
void x86_push( struct x86_function *p,
struct x86_reg reg )
{
@@ -459,6 +471,17 @@ void x86_push( struct x86_function *p,
p->stack_offset += 4;
}
void x86_push_imm32( struct x86_function *p,
int imm32 )
{
DUMP_I( imm32 );
emit_1ub(p, 0x68);
emit_1i(p, imm32);
p->stack_offset += 4;
}
void x86_pop( struct x86_function *p,
struct x86_reg reg )
{
@@ -1558,6 +1581,21 @@ void mmx_movq( struct x86_function *p,
*/
void x86_cdecl_caller_push_regs( struct x86_function *p )
{
x86_push(p, x86_make_reg(file_REG32, reg_AX));
x86_push(p, x86_make_reg(file_REG32, reg_CX));
x86_push(p, x86_make_reg(file_REG32, reg_DX));
}
void x86_cdecl_caller_pop_regs( struct x86_function *p )
{
x86_pop(p, x86_make_reg(file_REG32, reg_DX));
x86_pop(p, x86_make_reg(file_REG32, reg_CX));
x86_pop(p, x86_make_reg(file_REG32, reg_AX));
}
/* Retreive a reference to one of the function arguments, taking into
* account any push/pop activity:
*/
src/gallium/auxiliary/rtasm/rtasm_x86sse.h
+6
View File
@@ -155,6 +155,7 @@ void x86_call( struct x86_function *p, struct x86_reg reg);
* I load the immediate into general purpose register and use it.
*/
void x86_mov_reg_imm( struct x86_function *p, struct x86_reg dst, int imm );
void x86_add_reg_imm8( struct x86_function *p, struct x86_reg dst, ubyte imm );
/* Macro for sse_shufps() and sse2_pshufd():
@@ -225,6 +226,7 @@ void x86_imul( struct x86_function *p, struct x86_reg dst, struct x86_reg src );
void x86_or( struct x86_function *p, struct x86_reg dst, struct x86_reg src );
void x86_pop( struct x86_function *p, struct x86_reg reg );
void x86_push( struct x86_function *p, struct x86_reg reg );
void x86_push_imm32( struct x86_function *p, int imm );
void x86_ret( struct x86_function *p );
void x86_retw( struct x86_function *p, unsigned short imm );
void x86_sub( struct x86_function *p, struct x86_reg dst, struct x86_reg src );
@@ -232,6 +234,10 @@ void x86_test( struct x86_function *p, struct x86_reg dst, struct x86_reg src );
void x86_xor( struct x86_function *p, struct x86_reg dst, struct x86_reg src );
void x86_sahf( struct x86_function *p );
void x86_cdecl_caller_push_regs( struct x86_function *p );
void x86_cdecl_caller_pop_regs( struct x86_function *p );
void x87_assert_stack_empty( struct x86_function *p );
void x87_f2xm1( struct x86_function *p );