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authorKartik Agaram <vc@akkartik.com>2019-02-11 22:58:25 -0800
committerKartik Agaram <vc@akkartik.com>2019-02-11 22:58:25 -0800
commit0527fd92cb4748c72c4128c6aae7499e6d5b0c92 (patch)
tree6ee22a24a29808f994897681925bc36a3f7ce091 /subx/apps
parenta06dee4fcd7ae4f033b14837db2b57e2ee73338c (diff)
downloadmu-0527fd92cb4748c72c4128c6aae7499e6d5b0c92.tar.gz
4956
Diffstat (limited to 'subx/apps')
-rwxr-xr-xsubx/apps/packbin20534 -> 20762 bytes
-rw-r--r--subx/apps/pack.subx70
2 files changed, 69 insertions, 1 deletions
diff --git a/subx/apps/pack b/subx/apps/pack
index f1c03684..ef1f5847 100755
--- a/subx/apps/pack
+++ b/subx/apps/pack
Binary files differdiff --git a/subx/apps/pack.subx b/subx/apps/pack.subx
index fada02f1..04814d66 100644
--- a/subx/apps/pack.subx
+++ b/subx/apps/pack.subx
@@ -21,7 +21,7 @@
 # . 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes
 
     # for debugging: run a single test
-#?     e8/call test-convert-instruction-passes-comments-through/disp32
+#?     e8/call test-convert-instruction-passes-labels-through/disp32
 #?     8b/copy                         0/mod/indirect  5/rm32/.disp32            .             .           3/r32/EBX   Num-test-failures/disp32          # copy *Num-test-failures to EBX
 #?     eb/jump  $main:end/disp8
 
@@ -507,6 +507,74 @@ test-convert-instruction-passes-lines-with-just-whitespace-through:
     5d/pop-to-EBP
     c3/return
 
+test-convert-instruction-passes-labels-through:
+    # if the first word ends with ':', pass along the entire line unchanged
+    # . prolog
+    55/push-EBP
+    89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
+    # setup
+    # . clear-stream(_test-stream)
+    # . . push args
+    68/push  _test-stream/imm32
+    # . . call
+    e8/call  clear-stream/disp32
+    # . . discard args
+    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # add to ESP
+    # . clear-stream(_test-buffered-file+4)
+    # . . push args
+    b8/copy-to-EAX  _test-buffered-file/imm32
+    05/add-to-EAX  4/imm32
+    50/push-EAX
+    # . . call
+    e8/call  clear-stream/disp32
+    # . . discard args
+    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # add to ESP
+    # . clear-stream(_test-tmp-stream)
+    # . . push args
+    68/push  _test-tmp-stream/imm32
+    # . . call
+    e8/call  clear-stream/disp32
+    # . . discard args
+    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # add to ESP
+    # initialize input
+    # . write(_test-tmp-stream, "ab: # cd")
+    # . . push args
+    68/push  "ab: # cd"/imm32
+    68/push  _test-tmp-stream/imm32
+    # . . call
+    e8/call  write/disp32
+    # . . discard args
+    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
+    # convert-instruction(_test-tmp-stream, _test-buffered-file)
+    # . . push args
+    68/push  _test-buffered-file/imm32
+    68/push  _test-tmp-stream/imm32
+    # . . call
+    e8/call  convert-instruction/disp32
+    # . . discard args
+    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
+    # check that the write happened as expected
+    # . flush(_test-buffered-file)
+    # . . push args
+    68/push  _test-buffered-file/imm32
+    # . . call
+    e8/call  flush/disp32
+    # . . discard args
+    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # add to ESP
+    # . check-stream-equal(_test-stream, "ab: # cd", msg)
+    # . . push args
+    68/push  "F - test-convert-instruction-passes-labels-through"/imm32
+    68/push  "ab: # cd"/imm32
+    68/push  _test-stream/imm32
+    # . . call
+    e8/call  check-stream-equal/disp32
+    # . . discard args
+    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               0xc/imm32         # add to ESP
+    # . epilog
+    89/copy                         3/mod/direct    4/rm32/ESP    .           .             .           5/r32/EBP   .               .                 # copy EBP to ESP
+    5d/pop-to-EBP
+    c3/return
+
 # (re)compute the bounds of the next word in the line
 next-word:  # line : (address stream byte), out : (address slice)
     # . prolog