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[/] [atlas_core/] - Rev 33

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Rev Log message Author Age Path
33 - new bootloader version (minimal edits)
- updated documentary
- multiplications are SIGNED now (changeable by VHDL configuration constant)
- bug fix in assembler (PEEK pseudo-instruction)		 zero_gravity 3852d 02h /atlas_core
32 - new instruction available:
- MUL = get low multiplication result
- MULH = get high multiplication result
- updated assembler to support MULH instruction
- updated bootloader
- updated documentary
- updated simulation ISIM waveform
- minor RTL fixes		 zero_gravity 3855d 08h /atlas_core
31 - updated documentary
- newest bootloader version
- bug fix of opcode decoder - error with CPX options fixed
- boot init files available for example programs		 zero_gravity 3862d 05h /atlas_core
30 - fixed bootloader checksum issue - now it is working fine ;)
- doc update with new synthesis results (with WB RAM)

have a nice weekend! :D		 zero_gravity 3868d 08h /atlas_core
29 - this time it is the right bootloader version ;) zero_gravity 3871d 05h /atlas_core
28 - new bootloader! now supporting boot from Wishbone device
- doc updated		 zero_gravity 3871d 05h /atlas_core
27 - [software] new bootloader version
- [asm] supports now '\n' line break in strings
- [rtl] minor bug fixes
- [doc] new version
- [sim] waveform update		 zero_gravity 3875d 06h /atlas_core
26 - [doc] sorry, error in long relative branches example ;) zero_gravity 3888d 02h /atlas_core
25 - assembler update: option for loading relative offset to a label into a register added
- doc update: example for using the new rel offset option		 zero_gravity 3888d 02h /atlas_core
24 - new stack pseudo-instructions added (peek, push, pop) zero_gravity 3892d 06h /atlas_core
23 new version!
- new wishbone bus adapter added (com1_core)
- conditional move instructions added		 zero_gravity 3893d 04h /atlas_core
22 DOC update (error corrections) zero_gravity 3900d 05h /atlas_core
21 New repository setup for the brand new Atlas 2k Processor! zero_gravity 3908d 03h /atlas_core
20 re-init of project repository zero_gravity 3908d 03h /atlas_core
19 bug fixes in:
- MMU.vhd
- BUS_INTERFACE.vhd

initial setup of "atlas-x2" project folder		 zero_gravity 4160d 08h /atlas_core
18 huge update:
- doc update
- several bug-fixes in MMU, CTRL and BUS_INTERFACE.vhd
have fun ;)		 zero_gravity 4183d 04h /atlas_core
17 - new interrupt vector: unique vector for undefined instructions / access violations ("command error trap")
- bug fix in assembler: correct absolute address generator - assembler works fine now ;)		 zero_gravity 4193d 08h /atlas_core
16 - assembler update: assembler can now include other files using the ".include" statement
- doc update: fixed error in instruction summary table		 zero_gravity 4205d 10h /atlas_core
15 - new instruction added: NEG Rd, Rx (Rd <- 0 - Ra)
- instruction is built from redundant SUB with identical operands (SUB Rd, Ra, Ra; will always result in 0)
- since there are other instructions to clear a register, the redundant SUB has been recoded to perform the NEG operation
- NEG operation added to documentary and assembler		 zero_gravity 4212d 12h /atlas_core
14 - instruction set summary card added to documentary (Atlas Processor Datasheet)
- minor edits in SYS_REG.vhd and ATLAS_pkg.vhd files		 zero_gravity 4213d 07h /atlas_core

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