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-rw-r--r--src/arch/x86/isa/insts/general_purpose/compare_and_test/bit_scan.py213
1 files changed, 87 insertions, 126 deletions
diff --git a/src/arch/x86/isa/insts/general_purpose/compare_and_test/bit_scan.py b/src/arch/x86/isa/insts/general_purpose/compare_and_test/bit_scan.py
index 644707c02..71059e80d 100644
--- a/src/arch/x86/isa/insts/general_purpose/compare_and_test/bit_scan.py
+++ b/src/arch/x86/isa/insts/general_purpose/compare_and_test/bit_scan.py
@@ -84,6 +84,7 @@
microcode = '''
def macroop BSF_R_R {
# Determine if the input was zero, and also move it to a temp reg.
+ movi t1, t1, t0, dataSize=8
and t1, regm, regm, flags=(ZF,)
bri t0, label("end"), flags=(CZF,)
@@ -91,43 +92,37 @@ def macroop BSF_R_R {
movi reg, reg, 0x0
# Bit 6
- limm t2, 0xFFFFFFFF00000000
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 32, dataSize=8, flags=(EZF,)
ori t4, reg, 0x20
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 5
- limm t2, 0xFFFF0000FFFF0000
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 16, dataSize=8, flags=(EZF,)
ori t4, reg, 0x10
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 4
- limm t2, 0xFF00FF00FF00FF00
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 8, dataSize=8, flags=(EZF,)
ori t4, reg, 0x8
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 3
- limm t2, 0xF0F0F0F0F0F0F0F0
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 4, dataSize=8, flags=(EZF,)
ori t4, reg, 0x4
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 2
- limm t2, 0xCCCCCCCCCCCCCCCC
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 2, dataSize=8, flags=(EZF,)
ori t4, reg, 0x2
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 1
- limm t2, 0xAAAAAAAAAAAAAAAA
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 1, dataSize=8, flags=(EZF,)
ori t4, reg, 0x1
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
@@ -138,6 +133,7 @@ end:
def macroop BSF_R_M {
+ movi t1, t1, t0, dataSize=8
ld t1, seg, sib, disp
# Determine if the input was zero, and also move it to a temp reg.
@@ -148,43 +144,37 @@ def macroop BSF_R_M {
movi reg, reg, 0x0
# Bit 6
- limm t2, 0xFFFFFFFF00000000
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 32, dataSize=8, flags=(EZF,)
ori t4, reg, 0x20
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 5
- limm t2, 0xFFFF0000FFFF0000
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 16, dataSize=8, flags=(EZF,)
ori t4, reg, 0x10
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 4
- limm t2, 0xFF00FF00FF00FF00
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 8, dataSize=8, flags=(EZF,)
ori t4, reg, 0x8
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 3
- limm t2, 0xF0F0F0F0F0F0F0F0
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 4, dataSize=8, flags=(EZF,)
ori t4, reg, 0x4
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 2
- limm t2, 0xCCCCCCCCCCCCCCCC
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 2, dataSize=8, flags=(EZF,)
ori t4, reg, 0x2
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 1
- limm t2, 0xAAAAAAAAAAAAAAAA
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 1, dataSize=8, flags=(EZF,)
ori t4, reg, 0x1
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
@@ -196,6 +186,7 @@ end:
def macroop BSF_R_P {
rdip t7
+ movi t1, t1, t0, dataSize=8
ld t1, seg, riprel, disp
# Determine if the input was zero, and also move it to a temp reg.
@@ -206,43 +197,37 @@ def macroop BSF_R_P {
movi reg, reg, 0x0
# Bit 6
- limm t2, 0xFFFFFFFF00000000
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 32, dataSize=8, flags=(EZF,)
ori t4, reg, 0x20
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 5
- limm t2, 0xFFFF0000FFFF0000
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 16, dataSize=8, flags=(EZF,)
ori t4, reg, 0x10
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 4
- limm t2, 0xFF00FF00FF00FF00
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 8, dataSize=8, flags=(EZF,)
ori t4, reg, 0x8
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 3
- limm t2, 0xF0F0F0F0F0F0F0F0
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 4, dataSize=8, flags=(EZF,)
ori t4, reg, 0x4
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 2
- limm t2, 0xCCCCCCCCCCCCCCCC
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 2, dataSize=8, flags=(EZF,)
ori t4, reg, 0x2
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 1
- limm t2, 0xAAAAAAAAAAAAAAAA
- and t3, t2, t1, flags=(EZF,)
+ srli t3, t1, 1, dataSize=8, flags=(EZF,)
ori t4, reg, 0x1
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
@@ -253,53 +238,45 @@ end:
def macroop BSR_R_R {
# Determine if the input was zero, and also move it to a temp reg.
+ mov t1, t1, t0, dataSize=8
and t1, regm, regm, flags=(ZF,)
bri t0, label("end"), flags=(CZF,)
# Zero out the result register
movi reg, reg, 0
+ subi t2, t1, 1
+ xor t1, t2, t1
+
# Bit 6
- limm t2, 0x00000000FFFFFFFF
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x20
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 32, dataSize=8
+ andi t3, t3, 32
+ or reg, reg, t3
# Bit 5
- limm t2, 0x0000FFFF0000FFFF
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x10
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 16, dataSize=8
+ andi t3, t3, 16
+ or reg, reg, t3
# Bit 4
- limm t2, 0x00FF00FF00FF00FF
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x8
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 8, dataSize=8
+ andi t3, t3, 8
+ or reg, reg, t3
# Bit 3
- limm t2, 0x0F0F0F0F0F0F0F0F
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x4
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 4, dataSize=8
+ andi t3, t3, 4
+ or reg, reg, t3
# Bit 2
- limm t2, 0x3333333333333333
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x2
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 2, dataSize=8
+ andi t3, t3, 2
+ or reg, reg, t3
# Bit 1
- limm t2, 0x5555555555555555
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x1
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 1, dataSize=8
+ andi t3, t3, 1
+ or reg, reg, t3
end:
fault "NoFault"
@@ -307,6 +284,7 @@ end:
def macroop BSR_R_M {
+ mov t1, t1, t0, dataSize=8
ld t1, seg, sib, disp
# Determine if the input was zero, and also move it to a temp reg.
@@ -316,47 +294,38 @@ def macroop BSR_R_M {
# Zero out the result register
mov reg, reg, t0
+ subi t2, t1, 1
+ xor t1, t2, t1
+
# Bit 6
- limm t2, 0x00000000FFFFFFFF
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x20
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 32, dataSize=8
+ andi t3, t3, 32
+ or reg, reg, t3
# Bit 5
- limm t2, 0x0000FFFF0000FFFF
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x10
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 16, dataSize=8
+ andi t3, t3, 16
+ or reg, reg, t3
# Bit 4
- limm t2, 0x00FF00FF00FF00FF
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x8
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 8, dataSize=8
+ andi t3, t3, 8
+ or reg, reg, t3
# Bit 3
- limm t2, 0x0F0F0F0F0F0F0F0F
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x4
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 4, dataSize=8
+ andi t3, t3, 4
+ or reg, reg, t3
# Bit 2
- limm t2, 0x3333333333333333
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x2
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 2, dataSize=8
+ andi t3, t3, 2
+ or reg, reg, t3
# Bit 1
- limm t2, 0x5555555555555555
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x1
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 1, dataSize=8
+ andi t3, t3, 1
+ or reg, reg, t3
end:
fault "NoFault"
@@ -365,6 +334,7 @@ end:
def macroop BSR_R_P {
rdip t7
+ mov t1, t1, t0, dataSize=8
ld t1, seg, riprel, disp
# Determine if the input was zero, and also move it to a temp reg.
@@ -374,47 +344,38 @@ def macroop BSR_R_P {
# Zero out the result register
mov reg, reg, t0
+ subi t2, t1, 1
+ xor t1, t2, t1
+
# Bit 6
- limm t2, 0x00000000FFFFFFFF
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x20
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 32, dataSize=8
+ andi t3, t3, 32
+ or reg, reg, t3
# Bit 5
- limm t2, 0x0000FFFF0000FFFF
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x10
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 16, dataSize=8
+ andi t3, t3, 16
+ or reg, reg, t3
# Bit 4
- limm t2, 0x00FF00FF00FF00FF
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x8
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 8, dataSize=8
+ andi t3, t3, 8
+ or reg, reg, t3
# Bit 3
- limm t2, 0x0F0F0F0F0F0F0F0F
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x4
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 4, dataSize=8
+ andi t3, t3, 4
+ or reg, reg, t3
# Bit 2
- limm t2, 0x3333333333333333
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x2
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 2, dataSize=8
+ andi t3, t3, 2
+ or reg, reg, t3
# Bit 1
- limm t2, 0x5555555555555555
- and t3, t2, t1, flags=(EZF,)
- ori t4, reg, 0x1
- mov reg, reg, t4, flags=(CEZF,)
- mov t1, t1, t3, flags=(nCEZF,)
+ srli t3, t1, 1, dataSize=8
+ andi t3, t3, 1
+ or reg, reg, t3
end:
fault "NoFault"
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 01:51:03 +0000