diff --git a/src/main/fragment/mos6502-common/isr_hardware_cloba_entry.asm b/src/main/fragment/mos6502-common/isr_hardware_cloba_entry.asm
deleted file mode 100644
index 412cece15..000000000
--- a/src/main/fragment/mos6502-common/isr_hardware_cloba_entry.asm
+++ /dev/null
@@ -1 +0,0 @@
-pha
\ No newline at end of file
diff --git a/src/main/fragment/mos6502-common/isr_hardware_cloba_exit.asm b/src/main/fragment/mos6502-common/isr_hardware_cloba_exit.asm
deleted file mode 100644
index 07dc7c6db..000000000
--- a/src/main/fragment/mos6502-common/isr_hardware_cloba_exit.asm
+++ /dev/null
@@ -1,2 +0,0 @@
-pla
-rti
\ No newline at end of file
diff --git a/src/main/fragment/mos6502-common/isr_hardware_clobax_entry.asm b/src/main/fragment/mos6502-common/isr_hardware_clobax_entry.asm
deleted file mode 100644
index a9339d4a6..000000000
--- a/src/main/fragment/mos6502-common/isr_hardware_clobax_entry.asm
+++ /dev/null
@@ -1,3 +0,0 @@
-pha
-txa
-pha
\ No newline at end of file
diff --git a/src/main/fragment/mos6502-common/isr_hardware_clobax_exit.asm b/src/main/fragment/mos6502-common/isr_hardware_clobax_exit.asm
deleted file mode 100644
index bd079f9ab..000000000
--- a/src/main/fragment/mos6502-common/isr_hardware_clobax_exit.asm
+++ /dev/null
@@ -1,4 +0,0 @@
-pla
-tax
-pla
-rti
\ No newline at end of file
diff --git a/src/main/fragment/mos6502-common/isr_hardware_clobay_entry.asm b/src/main/fragment/mos6502-common/isr_hardware_clobay_entry.asm
deleted file mode 100644
index c6a10ce4d..000000000
--- a/src/main/fragment/mos6502-common/isr_hardware_clobay_entry.asm
+++ /dev/null
@@ -1,3 +0,0 @@
-pha
-tya
-pha
\ No newline at end of file
diff --git a/src/main/fragment/mos6502-common/isr_hardware_clobay_exit.asm b/src/main/fragment/mos6502-common/isr_hardware_clobay_exit.asm
deleted file mode 100644
index cd9e31881..000000000
--- a/src/main/fragment/mos6502-common/isr_hardware_clobay_exit.asm
+++ /dev/null
@@ -1,4 +0,0 @@
-pla
-tay
-pla
-rti
\ No newline at end of file
diff --git a/src/main/fragment/mos6502-selfmod/isr_hardware_clobax_entry.asm b/src/main/fragment/mos6502-selfmod/isr_hardware_clobax_entry.asm
deleted file mode 100644
index 43f15f353..000000000
--- a/src/main/fragment/mos6502-selfmod/isr_hardware_clobax_entry.asm
+++ /dev/null
@@ -1,2 +0,0 @@
-sta rega+1
-stx regx+1
\ No newline at end of file
diff --git a/src/main/fragment/mos6502-selfmod/isr_hardware_clobax_exit.asm b/src/main/fragment/mos6502-selfmod/isr_hardware_clobax_exit.asm
deleted file mode 100644
index 1329e4d8e..000000000
--- a/src/main/fragment/mos6502-selfmod/isr_hardware_clobax_exit.asm
+++ /dev/null
@@ -1,3 +0,0 @@
-rega: lda #0
-regx: ldx #0
-rti
\ No newline at end of file
diff --git a/src/main/fragment/mos6502-selfmod/isr_hardware_clobay_entry.asm b/src/main/fragment/mos6502-selfmod/isr_hardware_clobay_entry.asm
deleted file mode 100644
index d4d4fec9a..000000000
--- a/src/main/fragment/mos6502-selfmod/isr_hardware_clobay_entry.asm
+++ /dev/null
@@ -1,2 +0,0 @@
-sta rega+1
-sty regy+1
\ No newline at end of file
diff --git a/src/main/fragment/mos6502-selfmod/isr_hardware_clobay_exit.asm b/src/main/fragment/mos6502-selfmod/isr_hardware_clobay_exit.asm
deleted file mode 100644
index df2bfe287..000000000
--- a/src/main/fragment/mos6502-selfmod/isr_hardware_clobay_exit.asm
+++ /dev/null
@@ -1,3 +0,0 @@
-rega: lda #0
-regy: ldy #0
-rti
\ No newline at end of file
diff --git a/src/main/fragment/wdc65c02-common/isr_hardware_clobax_entry.asm b/src/main/fragment/wdc65c02-common/isr_hardware_clobax_entry.asm
deleted file mode 100644
index 0c3c0bc72..000000000
--- a/src/main/fragment/wdc65c02-common/isr_hardware_clobax_entry.asm
+++ /dev/null
@@ -1,2 +0,0 @@
-pha
-phx
\ No newline at end of file
diff --git a/src/main/fragment/wdc65c02-common/isr_hardware_clobax_exit.asm b/src/main/fragment/wdc65c02-common/isr_hardware_clobax_exit.asm
deleted file mode 100644
index fbd4e0fba..000000000
--- a/src/main/fragment/wdc65c02-common/isr_hardware_clobax_exit.asm
+++ /dev/null
@@ -1,3 +0,0 @@
-plx
-pla
-rti
\ No newline at end of file
diff --git a/src/main/fragment/wdc65c02-common/isr_hardware_clobay_entry.asm b/src/main/fragment/wdc65c02-common/isr_hardware_clobay_entry.asm
deleted file mode 100644
index 2e5687f51..000000000
--- a/src/main/fragment/wdc65c02-common/isr_hardware_clobay_entry.asm
+++ /dev/null
@@ -1,2 +0,0 @@
-pha
-phy
\ No newline at end of file
diff --git a/src/main/fragment/wdc65c02-common/isr_hardware_clobay_exit.asm b/src/main/fragment/wdc65c02-common/isr_hardware_clobay_exit.asm
deleted file mode 100644
index 7dd009915..000000000
--- a/src/main/fragment/wdc65c02-common/isr_hardware_clobay_exit.asm
+++ /dev/null
@@ -1,3 +0,0 @@
-ply
-pla
-rti
\ No newline at end of file
diff --git a/src/main/fragment/wdc65c02-common/isr_hardware_clobx_entry.asm b/src/main/fragment/wdc65c02-common/isr_hardware_clobx_entry.asm
deleted file mode 100644
index 647a890e1..000000000
--- a/src/main/fragment/wdc65c02-common/isr_hardware_clobx_entry.asm
+++ /dev/null
@@ -1 +0,0 @@
-phx
\ No newline at end of file
diff --git a/src/main/fragment/wdc65c02-common/isr_hardware_clobx_exit.asm b/src/main/fragment/wdc65c02-common/isr_hardware_clobx_exit.asm
deleted file mode 100644
index 9d099d06d..000000000
--- a/src/main/fragment/wdc65c02-common/isr_hardware_clobx_exit.asm
+++ /dev/null
@@ -1,2 +0,0 @@
-plx
-rti
\ No newline at end of file