INMC 80 News |
June/July/August 1980 · Issue 1 |
Page 4 of 48 |
---|
Dear Editor,
One night, whilst on a recent visit to California, I happened to be looking for somewhere to sleep. Being particularly hard up, and it being a fine night, I had a nice comfy packing case in mind. I was attracted to a pile of boxes full of shredded paper behind a factory displaying a trade name in the form of a stylized ‘Z’ picked out in blue. I must congratulate the owners of the factory on the quality of their shredded paper, as I spent a very comfortable night, and left the area the following morning thoroughly refreshed. It wasn’t until some time later that I discovered ‘The Paper’. It was a single sheet, that the shredding machine had somehow missed, which must have worked its way into my pocket as I slept. Being a thrifty sort, and paper always coming in useful, I kept it.
On my return to the UK, I (naturally) set to to catch up on my back issues of INMC news, and was intrigued by Dr. Dark’s ‘Search for the Missing Op-code’. ‘The paper’ came to mind, as there was something basically familiar about it. Of course !!!! It was one half of a page from a programming manual, the mnemonics were there, but the shredder had had the op-codes. I offer the following to Dr. Dark, in the hope that he can discover the op-codes which go with these very useful instructions:
ARN | Add and reset to non-zero |
BTI | Blow trumpet immediate |
CCS | Chinese character set |
CRN | Convert to roman numerals |
BAC | Divide and conquer |
DAR | Develop address out of range |
DM | Destroy memory |
DWS | Destroy write protect switch |
EIO | Execute invalid op-code |
EO | Erase operator |
FBUP | Float bus and jump |
FSG | Fill screen with garbage |
GO | Generate own operand |
HCF | Halt and catch fire |
HLP | Dial 999 |
IA | Illogical AND |
IOR | Illogical OR |
JPLO | Jump on lost operand |
JPPF | Jump on power failure |
JSO | Jump on sleepy operator |
LDBT | Load blank tape |
LDCM | Load then clear memory |
LDDRC | Move about, continuous |
LDID | Load invalid data |
LDNT | Load noise tape |
LDPB | Load, print & blush |
LDTR | Load tape & run away |
LDTS | Load tape & scramble |
MTI | Make tape invalid |
NPN | No program necessary |
PI | Punch invalid |
PO | Punch operator |
PS | Print and smear |
RBT | Read blank tape |
R N | Reset to n |
ROE | Randomize op-code |
ROM | Read operator’s mind |
RPM | Read programmer’s mind |
RT | Reduce thruput (Ugh!) |
SCT | Select and chew tape |
SD | Scramble data |
SLO | Scramble I/O |
SML | Shift memory left |
SMR | Shift memory right |
TOO | Execute operand only |
TPD | Triple packed decimal |
TPN | Turn power on |
TPO | Turn power off |
WM | Write to monitor |
XOM | Execute NOP & hangup |
Regards, Divad Tnuh
With apologies to BYTE.
Page 4 of 48 |
---|