Raphael Jacquot
9168cbc1a2
victory, this works on the fpga \o/
...
using "=" instead of "<=" is evil !
make the fpga halt when necessary
2019-03-04 22:48:09 +01:00
Raphaël Jacquot
479382e004
export rstk_ptr to debugger
...
implement LCHEX (and almost done for LAHEX)
2019-03-04 13:28:08 +01:00
Raphaël Jacquot
e47f12f1d7
implement push PC to RSTK
2019-03-04 11:52:05 +01:00
Raphaël Jacquot
908b96df6f
implement CLRHST and variants
...
implement SET[HEX|DEC]
2019-03-04 10:53:37 +01:00
Raphaël Jacquot
735504d2b3
implement RESET instruction
2019-03-04 10:15:37 +01:00
Raphaël Jacquot
18a56d750b
export main registers to debugger
...
add C register
implement C=P n
add dumping C register
2019-03-04 09:58:13 +01:00
Raphaël Jacquot
009f01f5d7
implement 8[45]x ST=[01] n
...
implement GOVLNG
dump 2 lines of registers in debugger now
2019-03-04 08:08:02 +01:00
Raphaël Jacquot
da3cce2c07
execute the first jump successfully, and start reading the next instruction
2019-03-03 22:38:56 +01:00
Raphaël Jacquot
631b7f9153
start implementing jump instructions
2019-03-03 20:48:56 +01:00
Raphaël Jacquot
6dd38500a8
add a counter to slow things down
2019-03-03 15:19:07 +01:00
Raphaël Jacquot
b58be38b10
connect debugger to leds
2019-03-03 13:33:32 +01:00
Raphael Jacquot
7e4ab90369
merge a few wire and assigns... can't do it on port declarations though
2019-03-03 09:47:28 +01:00
Raphael Jacquot
61957fab3e
fix misplaced ifdef
...
discover you can directly set contents of a wire without requiring an assign
2019-03-03 09:43:18 +01:00
Raphaël Jacquot
eeb5150159
add the beginnings of a PC and RSTK handler
...
fix bad maths in the rom-gx-r module
wire in the PC in the debugger and the control unit
add an execute flag, to start execution of partially
decoded instructions that need reading data from the
instruction stream
2019-03-03 09:33:42 +01:00
Raphael Jacquot
21ad359673
fix compiling
...
fix the way the bus controller program worked, which generated evil
inferred latches
2019-03-02 22:33:58 +01:00
Raphaël Jacquot
2fcd9f7b23
decode our first instruction
...
execute said instruction
start implementing the debugging engine to see what we are doing
2019-03-02 19:40:31 +01:00
Raphael Jacquot
c5355b4a90
enough was done to start feeding the decoder
2019-03-02 15:52:56 +01:00
Raphael Jacquot
cd2b74dcc8
add some commenting
2019-03-02 15:01:00 +01:00
Raphael Jacquot
3cbd6ac5e1
we are now up to reading the first instruction nibbles
2019-03-02 14:38:01 +01:00
Raphael Jacquot
8ce2d2a993
implement more of the bus controller
2019-03-02 13:22:09 +01:00
