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authorKorey Sewell <ksewell@umich.edu>2006-05-08 03:59:40 -0400
committerKorey Sewell <ksewell@umich.edu>2006-05-08 03:59:40 -0400
commita4ed65d0fa0a66d069f70a01c0caeb215e7ec760 (patch)
treef9e6e1ed7fb447a190399af1977d01c6afeb1cdf /arch/mips/isa
parent1047215ee58bf2b3df0b5e72f1e97da3891e3ed2 (diff)
downloadgem5-a4ed65d0fa0a66d069f70a01c0caeb215e7ec760.tar.xz
Start working on more complex FP tests
Debug FP instructions to handle these FP insts arch/mips/isa/bitfields.isa: add Bitfield for Floating Point Condition Codes arch/mips/isa/decoder.isa: Follow instruction naming style with FP single insts Send the float value to the convert&round functions in single FP add ll inst support add 'token' sc support arch/mips/isa_traits.cc: Add SINGLE->WORD, WORD->SINGLE, & WORD->DOUBLE conversions arch/mips/regfile.hh: update header files arch/mips/regfile/float_regfile.hh: Add more FP registers --HG-- rename : arch/mips/int_regfile.hh => arch/mips/regfile/int_regfile.hh rename : arch/mips/misc_regfile.hh => arch/mips/regfile/misc_regfile.hh extra : convert_revision : 92faf0bfd8542ade762ac569ec158d198f6a9c7e
Diffstat (limited to 'arch/mips/isa')
-rw-r--r--arch/mips/isa/bitfields.isa5
-rw-r--r--arch/mips/isa/decoder.isa48
2 files changed, 26 insertions, 27 deletions
diff --git a/arch/mips/isa/bitfields.isa b/arch/mips/isa/bitfields.isa
index eb917595c..e1124a591 100644
--- a/arch/mips/isa/bitfields.isa
+++ b/arch/mips/isa/bitfields.isa
@@ -39,7 +39,6 @@ def bitfield FT <20:16>;
def bitfield FS <15:11>;
def bitfield FD <10:6>;
-def bitfield CC <20:18>;
def bitfield ND <17:17>;
def bitfield TF <16:16>;
def bitfield MOVCI <16:16>;
@@ -48,6 +47,10 @@ def bitfield SRL <21:21>;
def bitfield SRLV < 6: 6>;
def bitfield SA <10: 6>;
+// Floating Point Condition Codes
+def bitfield CC <10:8>;
+def bitfield BRANCH_CC <20:18>;
+
// CP0 Register Select
def bitfield SEL < 2: 0>;
diff --git a/arch/mips/isa/decoder.isa b/arch/mips/isa/decoder.isa
index 53bbb94a4..d2d14efd0 100644
--- a/arch/mips/isa/decoder.isa
+++ b/arch/mips/isa/decoder.isa
@@ -500,51 +500,51 @@ decode OPCODE_HI default Unknown::unknown() {
0x0: decode FUNCTION_HI {
0x0: decode FUNCTION_LO {
format FloatOp {
- 0x0: adds({{ Fd.sf = Fs.sf + Ft.sf;}});
- 0x1: subs({{ Fd.sf = Fs.sf - Ft.sf;}});
- 0x2: muls({{ Fd.sf = Fs.sf * Ft.sf;}});
- 0x3: divs({{ Fd.sf = Fs.sf / Ft.sf;}});
- 0x4: sqrts({{ Fd.sf = sqrt(Fs.sf);}});
- 0x5: abss({{ Fd.sf = fabs(Fs.sf);}});
- 0x6: movs({{ Fd.sf = Fs.sf;}});
- 0x7: negs({{ Fd.sf = -1 * Fs.sf;}});
+ 0x0: add_s({{ Fd.sf = Fs.sf + Ft.sf;}});
+ 0x1: sub_s({{ Fd.sf = Fs.sf - Ft.sf;}});
+ 0x2: mul_s({{ Fd.sf = Fs.sf * Ft.sf;}});
+ 0x3: div_s({{ Fd.sf = Fs.sf / Ft.sf;}});
+ 0x4: sqrt_s({{ Fd.sf = sqrt(Fs.sf);}});
+ 0x5: abs_s({{ Fd.sf = fabs(Fs.sf);}});
+ 0x6: mov_s({{ Fd.sf = Fs.sf;}});
+ 0x7: neg_s({{ Fd.sf = -1 * Fs.sf;}});
}
}
0x1: decode FUNCTION_LO {
format Float64Op {
0x0: round_l_s({{
- Fd = convert_and_round(Fs.uw, SINGLE_TO_LONG, RND_NEAREST);
+ Fd.ud = convert_and_round(Fs.sf, SINGLE_TO_LONG, RND_NEAREST);
}});
0x1: trunc_l_s({{
- Fd = convert_and_round(Fs.uw, SINGLE_TO_LONG, RND_ZERO);
+ Fd.ud = convert_and_round(Fs.sf, SINGLE_TO_LONG, RND_ZERO);
}});
0x2: ceil_l_s({{
- Fd = convert_and_round(Fs.uw, SINGLE_TO_LONG, RND_UP);
+ Fd.ud = convert_and_round(Fs.sf, SINGLE_TO_LONG, RND_UP);
}});
0x3: floor_l_s({{
- Fd = convert_and_round(Fs.uw, SINGLE_TO_LONG, RND_DOWN);
+ Fd.ud = convert_and_round(Fs.sf, SINGLE_TO_LONG, RND_DOWN);
}});
}
format FloatOp {
0x4: round_w_s({{
- Fd = convert_and_round(Fs.uw, SINGLE_TO_WORD, RND_NEAREST);
+ Fd.uw = convert_and_round(Fs.sf, SINGLE_TO_WORD, RND_NEAREST);
}});
0x5: trunc_w_s({{
- Fd = convert_and_round(Fs.uw, SINGLE_TO_WORD, RND_ZERO);
+ Fd.uw = convert_and_round(Fs.sf, SINGLE_TO_WORD, RND_ZERO);
}});
0x6: ceil_w_s({{
- Fd = convert_and_round(Fs.uw, SINGLE_TO_WORD, RND_UP);
+ Fd.uw = convert_and_round(Fs.sf, SINGLE_TO_WORD, RND_UP);
}});
0x7: floor_w_s({{
- Fd = convert_and_round(Fs.uw, SINGLE_TO_WORD, RND_DOWN);
+ Fd.uw = convert_and_round(Fs.sf, SINGLE_TO_WORD, RND_DOWN);
}});
}
}
@@ -578,7 +578,7 @@ decode OPCODE_HI default Unknown::unknown() {
0x4: cvt_w_s({{
int rnd_mode = xc->readMiscReg(FCSR) & 0x03;
- Fd.uw = convert_and_round(Fs.uw, SINGLE_TO_WORD, rnd_mode);
+ Fd.uw = convert_and_round(Fs.sf, SINGLE_TO_WORD, rnd_mode);
}});
}
@@ -586,7 +586,7 @@ decode OPCODE_HI default Unknown::unknown() {
format Float64Op {
0x5: cvt_l_s({{
int rnd_mode = xc->readMiscReg(FCSR) & 0x03;
- Fd.ud = convert_and_round(Fs.uw, SINGLE_TO_LONG, rnd_mode);
+ Fd.ud = convert_and_round(Fs.sf, SINGLE_TO_LONG, rnd_mode);
}});
0x6: cvt_ps_st({{
@@ -696,12 +696,12 @@ decode OPCODE_HI default Unknown::unknown() {
format FloatOp {
0x20: cvt_s_w({{
int rnd_mode = xc->readMiscReg(FCSR) & 0x03;
- Fd.uw = convert_and_round(Fs.uw, WORD_TO_SINGLE, rnd_mode);
+ Fd.uw = convert_and_round(Fs.sf, WORD_TO_SINGLE, rnd_mode);
}});
0x21: cvt_d_w({{
int rnd_mode = xc->readMiscReg(FCSR) & 0x03;
- Fd.ud = convert_and_round(Fs.uw, WORD_TO_DOUBLE, rnd_mode);
+ Fd.ud = convert_and_round(Fs.sf, WORD_TO_DOUBLE, rnd_mode);
}});
}
}
@@ -1033,8 +1033,6 @@ decode OPCODE_HI default Unknown::unknown() {
uint32_t unalign_addr = Rs + disp;
uint32_t offset = unalign_addr & 0x00000003;
#if BYTE_ORDER == BIG_ENDIAN
- std::cout << "Big Endian Byte Order\n";
-
switch(offset)
{
case 0:
@@ -1060,8 +1058,6 @@ decode OPCODE_HI default Unknown::unknown() {
panic("lwl: bad offset");
}
#elif BYTE_ORDER == LITTLE_ENDIAN
- std::cout << "Little Endian Byte Order\n";
-
switch(offset)
{
case 0:
@@ -1274,7 +1270,7 @@ decode OPCODE_HI default Unknown::unknown() {
}
0x6: decode OPCODE_LO default FailUnimpl::reserved() {
- 0x0: FailUnimpl::ll();
+ 0x0: LoadMemory::ll({{Rt.uw = Mem.uw}},mem_flags=LOCKED);
format LoadFloatMemory {
0x1: lwc1({{ Ft.uw = Mem.uw; }});
@@ -1284,7 +1280,7 @@ decode OPCODE_HI default Unknown::unknown() {
0x7: decode OPCODE_LO default FailUnimpl::reserved() {
- 0x0: FailUnimpl::sc();
+ 0x0: StoreMemory::sc({{ Mem.uw = Rt.uw; Rt.uw = 1; }});
format StoreFloatMemory {
0x1: swc1({{ Mem.uw = Ft.uw; }});