#6502cpu — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #6502cpu, aggregated by home.social.
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Hey is my computer gay enough? #kim-1 #commodore #6502cpu
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Hey is my computer gay enough? #kim-1 #commodore #6502cpu
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Hey is my computer gay enough #kim-1 #commodore #6502 #6502cpu
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I managed to get a 6502 CPU running on the ULX3S and wrote a 16 color indexed display RAM module for it. The CPU also has access to all the buttons and the LEDs, which are counting up the current low byte of display RAM. Its the most complex bit of Verilog I've written so far. I hope to add basic sound support next, and then I'll have made my own little toy console to mess with. #ulx3s #fpga #6502CPU
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I managed to get a 6502 CPU running on the ULX3S and wrote a 16 color indexed display RAM module for it. The CPU also has access to all the buttons and the LEDs, which are counting up the current low byte of display RAM. Its the most complex bit of Verilog I've written so far. I hope to add basic sound support next, and then I'll have made my own little toy console to mess with. #ulx3s #fpga #6502CPU
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I managed to get a 6502 CPU running on the ULX3S and wrote a 16 color indexed display RAM module for it. The CPU also has access to all the buttons and the LEDs, which are counting up the current low byte of display RAM. Its the most complex bit of Verilog I've written so far. I hope to add basic sound support next, and then I'll have made my own little toy console to mess with. #ulx3s #fpga #6502CPU
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I managed to get a 6502 CPU running on the ULX3S and wrote a 16 color indexed display RAM module for it. The CPU also has access to all the buttons and the LEDs, which are counting up the current low byte of display RAM. Its the most complex bit of Verilog I've written so far. I hope to add basic sound support next, and then I'll have made my own little toy console to mess with. #ulx3s #fpga #6502CPU
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I managed to get a 6502 CPU running on the ULX3S and wrote a 16 color indexed display RAM module for it. The CPU also has access to all the buttons and the LEDs, which are counting up the current low byte of display RAM. Its the most complex bit of Verilog I've written so far. I hope to add basic sound support next, and then I'll have made my own little toy console to mess with. #ulx3s #fpga #6502CPU
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#VolksForth booted today on the #Sorbus Computer (made by SvOlli -> https://xayax.net/sorbus/) #Forth #retrocomputing #6502CPU
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#VolksForth booted today on the #Sorbus Computer (made by SvOlli -> https://xayax.net/sorbus/) #Forth #retrocomputing #6502CPU
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#VolksForth booted today on the #Sorbus Computer (made by SvOlli -> https://xayax.net/sorbus/) #Forth #retrocomputing #6502CPU
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#VolksForth booted today on the #Sorbus Computer (made by SvOlli -> https://xayax.net/sorbus/) #Forth #retrocomputing #6502CPU
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#VolksForth booted today on the #Sorbus Computer (made by SvOlli -> https://xayax.net/sorbus/) #Forth #retrocomputing #6502CPU
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RISC architecture may "gonna change everything", m'kay, but do you also see numbers, like me?
Here, two take a Kawasaki KLR 650 which makes it a... 6502.
- https://www.imcdb.org/vehicle_99638-Kawasaki-KLR-650-1987.html
#Hackers #6502cpu #Kawasaki #motorcycle -
RISC architecture may "gonna change everything", m'kay, but do you also see numbers, like me?
Here, two take a Kawasaki KLR 650 which makes it a... 6502.
- https://www.imcdb.org/vehicle_99638-Kawasaki-KLR-650-1987.html
#Hackers #6502cpu #Kawasaki #motorcycle -
RISC architecture may "gonna change everything", m'kay, but do you also see numbers, like me?
Here, two take a Kawasaki KLR 650 which makes it a... 6502.
- https://www.imcdb.org/vehicle_99638-Kawasaki-KLR-650-1987.html
#Hackers #6502cpu #Kawasaki #motorcycle -
RISC architecture may "gonna change everything", m'kay, but do you also see numbers, like me?
Here, two take a Kawasaki KLR 650 which makes it a... 6502.
- https://www.imcdb.org/vehicle_99638-Kawasaki-KLR-650-1987.html
#Hackers #6502cpu #Kawasaki #motorcycle -
RISC architecture may "gonna change everything", m'kay, but do you also see numbers, like me?
Here, two take a Kawasaki KLR 650 which makes it a... 6502.
- https://www.imcdb.org/vehicle_99638-Kawasaki-KLR-650-1987.html
#Hackers #6502cpu #Kawasaki #motorcycle -
Visual Transistor-level Simulation of the 6502 CPU
#HackerNews #VisualTransistorSimulation #6502CPU #RetroComputing #CPUArchitecture #HardwareSimulation
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Visual Transistor-level Simulation of the 6502 CPU
#HackerNews #VisualTransistorSimulation #6502CPU #RetroComputing #CPUArchitecture #HardwareSimulation
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Visual Transistor-level Simulation of the 6502 CPU
#HackerNews #VisualTransistorSimulation #6502CPU #RetroComputing #CPUArchitecture #HardwareSimulation
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Visual Transistor-level Simulation of the 6502 CPU
#HackerNews #VisualTransistorSimulation #6502CPU #RetroComputing #CPUArchitecture #HardwareSimulation
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Visual Transistor-level Simulation of the 6502 CPU
#HackerNews #VisualTransistorSimulation #6502CPU #RetroComputing #CPUArchitecture #HardwareSimulation
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"Calypsi" is a collection of compilers and assemblers that run under Windows, Linux and macOS and can generate code for various retro platforms - 6502 and 68000 processors are supported, among others. Although the project is hosted on Github, the source code is not freely available and use of the tools is only permitted for private purposes. Now version 5.10 is available. Changes:
https://www.amiga-news.de/en/news/AN-2025-04-00045-EN.html
#Amiga #development #compiler #assembler #motorola_68000 #6502CPU
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"Calypsi" is a collection of compilers and assemblers that run under Windows, Linux and macOS and can generate code for various retro platforms - 6502 and 68000 processors are supported, among others. Although the project is hosted on Github, the source code is not freely available and use of the tools is only permitted for private purposes. Now version 5.10 is available. Changes:
https://www.amiga-news.de/en/news/AN-2025-04-00045-EN.html
#Amiga #development #compiler #assembler #motorola_68000 #6502CPU
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"Calypsi" is a collection of compilers and assemblers that run under Windows, Linux and macOS and can generate code for various retro platforms - 6502 and 68000 processors are supported, among others. Although the project is hosted on Github, the source code is not freely available and use of the tools is only permitted for private purposes. Now version 5.10 is available. Changes:
https://www.amiga-news.de/en/news/AN-2025-04-00045-EN.html
#Amiga #development #compiler #assembler #motorola_68000 #6502CPU
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"Calypsi" is a collection of compilers and assemblers that run under Windows, Linux and macOS and can generate code for various retro platforms - 6502 and 68000 processors are supported, among others. Although the project is hosted on Github, the source code is not freely available and use of the tools is only permitted for private purposes. Now version 5.10 is available. Changes:
https://www.amiga-news.de/en/news/AN-2025-04-00045-EN.html
#Amiga #development #compiler #assembler #motorola_68000 #6502CPU
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"Calypsi" is a collection of compilers and assemblers that run under Windows, Linux and macOS and can generate code for various retro platforms - 6502 and 68000 processors are supported, among others. Although the project is hosted on Github, the source code is not freely available and use of the tools is only permitted for private purposes. Now version 5.10 is available. Changes:
https://www.amiga-news.de/en/news/AN-2025-04-00045-EN.html
#Amiga #development #compiler #assembler #motorola_68000 #6502CPU
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Just arrived today... Ordered this as I am not sure if the one I have is faulty.
Most likely it is my Arduino glue logic code that is faulty and not the #6502CPU. However, just in case I do break, or have broken it, there is no harm having a spare!
Also, there is no such thing as having too many 6502's 😁
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Just arrived today... Ordered this as I am not sure if the one I have is faulty.
Most likely it is my Arduino glue logic code that is faulty and not the #6502CPU. However, just in case I do break, or have broken it, there is no harm having a spare!
Also, there is no such thing as having too many 6502's 😁
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Just arrived today... Ordered this as I am not sure if the one I have is faulty.
Most likely it is my Arduino glue logic code that is faulty and not the #6502CPU. However, just in case I do break, or have broken it, there is no harm having a spare!
Also, there is no such thing as having too many 6502's 😁
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Just arrived today... Ordered this as I am not sure if the one I have is faulty.
Most likely it is my Arduino glue logic code that is faulty and not the #6502CPU. However, just in case I do break, or have broken it, there is no harm having a spare!
Also, there is no such thing as having too many 6502's 😁
-
Just arrived today... Ordered this as I am not sure if the one I have is faulty.
Most likely it is my Arduino glue logic code that is faulty and not the #6502CPU. However, just in case I do break, or have broken it, there is no harm having a spare!
Also, there is no such thing as having too many 6502's 😁
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Two versions of a 6502 assembly routine. We have a byte in X. Its bits are denoted %ABCDEF00. We want to get bits %0BCADEF1 in the accumulator. Each version is 23 bytes. The first one doesn't need a look-up table. The second one does but is much faster and doesn't need a temporary variable.
#6502cpu #assembly; version 1
txa
and #%01100000
sta temp
txa
lsr a
lsr a
lsr a
and #%00010000
ora temp
sta temp
txa
lsr a
and #%00001110
ora temp
ora #%00000001; version 2
txa
asl a
rol a
rol a
rol a
and #%00000111
tay
txa
lsr a
and #%00001110
ora table,y
...
; look-up table for version 2
table: db $01, $21, $41, $61, $11, $31, $51, $71 -
Two versions of a 6502 assembly routine. We have a byte in X. Its bits are denoted %ABCDEF00. We want to get bits %0BCADEF1 in the accumulator. Each version is 23 bytes. The first one doesn't need a look-up table. The second one does but is much faster and doesn't need a temporary variable.
#6502cpu #assembly; version 1
txa
and #%01100000
sta temp
txa
lsr a
lsr a
lsr a
and #%00010000
ora temp
sta temp
txa
lsr a
and #%00001110
ora temp
ora #%00000001; version 2
txa
asl a
rol a
rol a
rol a
and #%00000111
tay
txa
lsr a
and #%00001110
ora table,y
...
; look-up table for version 2
table: db $01, $21, $41, $61, $11, $31, $51, $71 -
Two versions of a 6502 assembly routine. We have a byte in X. Its bits are denoted %ABCDEF00. We want to get bits %0BCADEF1 in the accumulator. Each version is 23 bytes. The first one doesn't need a look-up table. The second one does but is much faster and doesn't need a temporary variable.
#6502cpu #assembly; version 1
txa
and #%01100000
sta temp
txa
lsr a
lsr a
lsr a
and #%00010000
ora temp
sta temp
txa
lsr a
and #%00001110
ora temp
ora #%00000001; version 2
txa
asl a
rol a
rol a
rol a
and #%00000111
tay
txa
lsr a
and #%00001110
ora table,y
...
; look-up table for version 2
table: db $01, $21, $41, $61, $11, $31, $51, $71 -
Two versions of a 6502 assembly routine. We have a byte in X. Its bits are denoted %ABCDEF00. We want to get bits %0BCADEF1 in the accumulator. Each version is 23 bytes. The first one doesn't need a look-up table. The second one does but is much faster and doesn't need a temporary variable.
#6502cpu #assembly; version 1
txa
and #%01100000
sta temp
txa
lsr a
lsr a
lsr a
and #%00010000
ora temp
sta temp
txa
lsr a
and #%00001110
ora temp
ora #%00000001; version 2
txa
asl a
rol a
rol a
rol a
and #%00000111
tay
txa
lsr a
and #%00001110
ora table,y
...
; look-up table for version 2
table: db $01, $21, $41, $61, $11, $31, $51, $71 -
Two versions of a 6502 assembly routine. We have a byte in X. Its bits are denoted %ABCDEF00. We want to get bits %0BCADEF1 in the accumulator. Each version is 23 bytes. The first one doesn't need a look-up table. The second one does but is much faster and doesn't need a temporary variable.
#6502cpu #assembly; version 1
txa
and #%01100000
sta temp
txa
lsr a
lsr a
lsr a
and #%00010000
ora temp
sta temp
txa
lsr a
and #%00001110
ora temp
ora #%00000001; version 2
txa
asl a
rol a
rol a
rol a
and #%00000111
tay
txa
lsr a
and #%00001110
ora table,y
...
; look-up table for version 2
table: db $01, $21, $41, $61, $11, $31, $51, $71 -
Selbstbau neo6502 Schlepptop von WOST auf dem Forth Sommertreff im UpH in Essen
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Selbstbau neo6502 Schlepptop von WOST auf dem Forth Sommertreff im UpH in Essen
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Selbstbau neo6502 Schlepptop von WOST auf dem Forth Sommertreff im UpH in Essen
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Selbstbau neo6502 Schlepptop von WOST auf dem Forth Sommertreff im UpH in Essen
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Selbstbau neo6502 Schlepptop von WOST auf dem Forth Sommertreff im UpH in Essen
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Cyberspace-1 clock board up and running! Other than solder issue, it just works. The crystal clock source seems to run but not at the right rate. Will need to debug that. See video for show and tell. #cyberspace1 #6502CPU
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Cyberspace-1 clock board up and running! Other than solder issue, it just works. The crystal clock source seems to run but not at the right rate. Will need to debug that. See video for show and tell. #cyberspace1 #6502CPU
