Commit Graph

8 Commits

Author SHA1 Message Date
Aryadev Chavali
15ce778771 Set register parameter for inst_t to be a byte
We at most have 255 registers, so no need to have a word for it.
2023-10-15 22:05:59 +01:00
Aryadev Chavali
744cc7acf7 Renamed opcodes PUSH_*REG to PUSH_*_REGISTER
More precise in naming
2023-10-15 21:27:00 +01:00
Aryadev Chavali
4ae762294d Rearranged opcodes (switched mov with push_reg)
This is so push opcodes are closer together
2023-10-15 21:22:42 +01:00
Aryadev Chavali
54760d446c Added instructions to push register values onto the stack 2023-10-15 21:19:49 +01:00
Aryadev Chavali
00517fddd6 Added instructions for popping differing types
Bit mask is 100.
2023-10-15 21:09:00 +01:00
Aryadev Chavali
56c545e7c9 Added opcodes for MOV and ability for instructions to hold registers
Pretty simple implementation
2023-10-15 21:03:27 +01:00
Aryadev Chavali
7a820290f9 Make push opcodes a specific bit set and add a NOOP opcode
By default, a zero initialised set of instructions are NOOPs, which is
great.

Last two bits of a push opcode is always 01.  Rest of the bits are
used to distinguish between differing types of push.  This makes it
easier to inspect on the byte level what type of opcode we have.
2023-10-15 20:59:26 +01:00
Aryadev Chavali
40dfa5c255 Split off instruction structure to its own file 2023-10-15 17:38:35 +01:00