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Fixed 36-bit multiplication results in cases of overflow

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Jeff 2017-04-01 15:14:27 -07:00 • committed by Jeff Parsons
commit 1a8c1306d4
4 changed files with 19 additions and 6 deletions
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6
apps/pdp10/diags/ka10/dakal/README.md
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@ -7,7 +7,7 @@ machines:
type: pdp10
config: /devices/pdp10/machine/ka10/test/debugger/machine.xml
debugger: true
commands: a dakal.mac; g 31134
commands: a dakal.mac; g 33726
---
PDP-10 KA10 Basic Instruction Diagnostic #12
@ -192,6 +192,10 @@ Here's that output:
MUL(252525252525,004000000000) PDP-10: 124000000000 JavaScript: 524000000000 @032765
MUL(252525252525,020000000000) PDP-10: 120000000000 JavaScript: 520000000000 @033013
MUL(252525252525,100000000000) PDP-10: 100000000000 JavaScript: 500000000000 @033041
MUL(400000000000,400000000000) PDP-10: 400000000000 JavaScript: 000000000000 @033707 VERIFIED
MUL(400000000000,400000000000) PDP-10: 400000000000 JavaScript: 000000000000 @033707 VERIFIED
MUL(400000000000,400000000000) PDP-10: 400000000000 JavaScript: 000000000000 @033707 VERIFIED
MUL(400000000000,400000000000) PDP-10: 400000000000 JavaScript: 000000000000 @033707 VERIFIED
MUL(777777777776,777777777776) PDP-10: 000000000004 JavaScript: 000000000000 @033726
MUL(000000777777,000000777777) PDP-10: 377776000001 JavaScript: 777776000001 @033726
MUL(000000777777,000000777777) PDP-10: 377776000001 JavaScript: 777776000001 @033726