Rev |
Log message |
Author |
Age |
Path |
97 |
Added longjump instructions. |
dgisselq |
3138d 19h |
/zipcpu/trunk/sw/ |
96 |
Added the longjump functionality, so that the assembler will properly assemble
instructions to arbitrary 32-bit addresses. |
dgisselq |
3138d 19h |
/zipcpu/trunk/sw/ |
95 |
Fixed a bug whereby a mistaken code for CLR was masking a valid LDI of a large
integer value. |
dgisselq |
3141d 01h |
/zipcpu/trunk/sw/ |
94 |
These changes make it possible to build binutils-2.25/ here in this
directory. "make binutils" should be all that is necessary to build the
entire binutils package for the Zip CPU.
The default configure script, run from gas-script.sh below, will build and
install these utilities in an install/ subdirectory made below sw/. |
dgisselq |
3165d 22h |
/zipcpu/trunk/sw/ |
93 |
A BINUTILS BACKEND IS NOW AVAILABLE!!!! |
dgisselq |
3173d 20h |
/zipcpu/trunk/sw/ |
89 |
Minor changes, to include making default branching an ADD.[condition] X,PC
instruction, rather than allowing both MOV X(PC),PC and ADD X,PC instructions.
Further zopcodes.cpp contains several bug fixes. |
dgisselq |
3173d 20h |
/zipcpu/trunk/sw/ |
70 |
Updated the assembler support files, zopcodes in particular, to handle
the disassembly of the new very long instruction word codes. |
dgisselq |
3204d 22h |
/zipcpu/trunk/sw/ |
69 |
This implements the "new Instruction Set" architecture for the Zip CPU. It's
a massive change set, that touches just about everything but probably not
enough of everything. Please see the spec.pdf for a description of this
new architecture. |
dgisselq |
3211d 02h |
/zipcpu/trunk/sw/ |
60 |
Fixed assembler processing of jump instructions, so that the new fast
return instruction can be used. The test file was modified to test
pipelined value passing within the CPU. That's where the value gets
(re)used before being stored back in the register file. As of this release,
all tests work. |
dgisselq |
3272d 03h |
/zipcpu/trunk/sw/ |
59 |
Adjusted these library routines to use the new stack frame and calling
conventions. |
dgisselq |
3272d 03h |
/zipcpu/trunk/sw/ |
55 |
A test was added to double check whether carry following right shifts worked.
This was a necessary part of getting two cycle linear feedback shift register
operations working for a memory test on a XuLA2 board. With this, I can now
verify that such feedback registers work for pseudorandom number purposes. |
dgisselq |
3282d 05h |
/zipcpu/trunk/sw/ |
54 |
This builds on the support for backslash character escapes in both single
and multicharacter expressions. Backslash character escapes are now
possible with quotations and backslashes, and the same code to interpret
the escapes is applied to both single and multicharacter sequences. |
dgisselq |
3282d 05h |
/zipcpu/trunk/sw/ |
53 |
Updated the #include/#define directives to work properly for nested includes.
(They were supposed to work properly for nested includes before ... and didn't)
This fixes those bugs. |
dgisselq |
3282d 05h |
/zipcpu/trunk/sw/ |
52 |
Added the capability to "see" character's encoded within a binary file,
by printing the character value(s) of each opcode (if they are printable)
on each line. |
dgisselq |
3282d 05h |
/zipcpu/trunk/sw/ |
51 |
Added the capability to look at binary files and 'see' characters as they
are encoded in memory. |
dgisselq |
3282d 05h |
/zipcpu/trunk/sw/ |
46 |
A series of updates associated with getting Dhrystone to work. Includes
updates to getting multiple files to link/work together within the assembler,
as well as getting quoted quotations to work in the lexer, and better
include file support in the preprocessor. |
dgisselq |
3291d 21h |
/zipcpu/trunk/sw/ |
45 |
Library routines for 32-bit multiply and divide, both signed and unsigned. |
dgisselq |
3291d 21h |
/zipcpu/trunk/sw/ |
44 |
?? |
dgisselq |
3291d 21h |
/zipcpu/trunk/sw/ |
39 |
Here's the documentation update to support the pipelined read/writes of
the bus from the CPU, as well as the test file that proved they worked. |
dgisselq |
3295d 00h |
/zipcpu/trunk/sw/ |
36 |
*Lots* of changes to increase processing speed and remove pipeline stalls.
Removed the useless flash cache, replacing it with a proper DMA controller.
"make test" in the main directory now runs a test program in Verilator and
reports on the results. |
dgisselq |
3304d 05h |
/zipcpu/trunk/sw/ |