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| author | fishsoupisgood <github@madingley.org> | 2019-04-29 01:17:54 +0100 |
|---|---|---|
| committer | fishsoupisgood <github@madingley.org> | 2019-05-27 03:43:43 +0100 |
| commit | 3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch) | |
| tree | 65ca85f13617aee1dce474596800950f266a456c /roms/SLOF/slof/fs/fcode/little-big.fs | |
| download | qemu-master.tar.gz qemu-master.tar.bz2 qemu-master.zip | |
Diffstat (limited to 'roms/SLOF/slof/fs/fcode/little-big.fs')
| -rw-r--r-- | roms/SLOF/slof/fs/fcode/little-big.fs | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/roms/SLOF/slof/fs/fcode/little-big.fs b/roms/SLOF/slof/fs/fcode/little-big.fs new file mode 100644 index 00000000..309c626a --- /dev/null +++ b/roms/SLOF/slof/fs/fcode/little-big.fs @@ -0,0 +1,96 @@ +\ ***************************************************************************** +\ * Copyright (c) 2004, 2011 IBM Corporation +\ * All rights reserved. +\ * This program and the accompanying materials +\ * are made available under the terms of the BSD License +\ * which accompanies this distribution, and is available at +\ * http://www.opensource.org/licenses/bsd-license.php +\ * +\ * Contributors: +\ * IBM Corporation - initial implementation +\ ****************************************************************************/ + +\ little- and big-endian FCODE IP access functions + + +?bigendian [IF] \ Big endian access functions first + + +: read-fcode-num16 ( -- n ) + 0 fcode-num ! + ?arch64 IF + read-byte fcode-num 6 + C! + next-ip + read-byte fcode-num 7 + C! + ELSE + read-byte fcode-num 2 + C! + next-ip + read-byte fcode-num 3 + C! + THEN + fcode-num @ +; + +: read-fcode-num32 ( -- n ) + 0 fcode-num ! + ?arch64 IF + read-byte fcode-num 4 + C! + next-ip + read-byte fcode-num 5 + C! + next-ip + read-byte fcode-num 6 + C! + next-ip + read-byte fcode-num 7 + C! + ELSE + read-byte fcode-num 0 + C! + next-ip + read-byte fcode-num 1 + C! + next-ip + read-byte fcode-num 2 + C! + next-ip + read-byte fcode-num 3 + C! + THEN + fcode-num @ +; + + +[ELSE] \ Now the little endian access functions + + +: read-fcode-num16 ( -- n ) + 0 fcode-num ! + ?arch64 IF + read-byte fcode-num 7 + C! + next-ip + read-byte fcode-num 6 + C! + ELSE + read-byte fcode-num 1 + C! + next-ip + read-byte fcode-num 0 + C! + THEN + fcode-num @ +; + +: read-fcode-num32 ( adr -- n ) + 0 fcode-num ! + ?arch64 IF + read-byte fcode-num 7 + C! + next-ip + read-byte fcode-num 6 + C! + next-ip + read-byte fcode-num 5 + C! + next-ip + read-byte fcode-num 4 + C! + ELSE + read-byte fcode-num 3 + C! + next-ip + read-byte fcode-num 2 + C! + next-ip + read-byte fcode-num 1 + C! + next-ip + read-byte fcode-num 0 + C! + THEN + fcode-num @ +; + + +[THEN] |