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| author | Test_User <hax@andrewyu.org> | 2023-03-19 10:58:54 -0400 |
|---|---|---|
| committer | Test_User <hax@andrewyu.org> | 2023-03-19 10:58:54 -0400 |
| commit | ba4ef2bfd07be3ec9a0ff0f167755d0f239b9d5c (patch) | |
| tree | bdb5bfbc3737a8503647c1b446b284c4ce3bc8bd | |
| parent | e4f85d2fe57613a94a9cb99e3aca4df91b639e31 (diff) | |
| download | specification-ba4ef2bfd07be3ec9a0ff0f167755d0f239b9d5c.tar.gz specification-ba4ef2bfd07be3ec9a0ff0f167755d0f239b9d5c.zip | |
Add data transfer instructions
| -rw-r--r-- | cpu/instructions/transfer/exchange.txt | 10 | ||||
| -rw-r--r-- | cpu/instructions/transfer/move.txt | 10 | ||||
| -rw-r--r-- | cpu/instructions/transfer/pop.txt | 11 | ||||
| -rw-r--r-- | cpu/instructions/transfer/push.txt | 11 | ||||
| -rw-r--r-- | cpu/instructions/transfer/push_pop_notes.txt | 2 |
5 files changed, 44 insertions, 0 deletions
diff --git a/cpu/instructions/transfer/exchange.txt b/cpu/instructions/transfer/exchange.txt new file mode 100644 index 0000000..de55413 --- /dev/null +++ b/cpu/instructions/transfer/exchange.txt @@ -0,0 +1,10 @@ +Number of parameters: 2 + +Usage: + exchange <value0> <value1> + +Effect: + Atomically (from a multi-cpu perspective) sets <value0> to <value1>, and <value1> to <value0> + +Exceptions: + None diff --git a/cpu/instructions/transfer/move.txt b/cpu/instructions/transfer/move.txt new file mode 100644 index 0000000..c17a4db --- /dev/null +++ b/cpu/instructions/transfer/move.txt @@ -0,0 +1,10 @@ +Number of parameters: 2 + +Usage: + move <output> <input> + +Effect: + Sets <output> to <input> + +Exceptions: + None diff --git a/cpu/instructions/transfer/pop.txt b/cpu/instructions/transfer/pop.txt new file mode 100644 index 0000000..e895022 --- /dev/null +++ b/cpu/instructions/transfer/pop.txt @@ -0,0 +1,11 @@ +Number of parameters: 1 + +Usage: + pop <output> + +Effect: + Sets <output> to [SP], then increments SP by sizeof <output> + See ./push_pop_notes.txt + +Exceptions: + Stack error if [SP] is not readable diff --git a/cpu/instructions/transfer/push.txt b/cpu/instructions/transfer/push.txt new file mode 100644 index 0000000..9ea7f10 --- /dev/null +++ b/cpu/instructions/transfer/push.txt @@ -0,0 +1,11 @@ +Number of parameters: 1 + +Usage: + push <value> + +Effect: + Decrements SP by sizeof <value>, then sets [SP] to <value> + See ./push_pop_notes.txt + +Exceptions: + Stack error if [SP] is not writable diff --git a/cpu/instructions/transfer/push_pop_notes.txt b/cpu/instructions/transfer/push_pop_notes.txt new file mode 100644 index 0000000..ae64f95 --- /dev/null +++ b/cpu/instructions/transfer/push_pop_notes.txt @@ -0,0 +1,2 @@ +Exact value to use for SP during push/pop instructions within the same queue is to be considered as if each push/pop instrction were executed sequentially according to their placement in the instruction queue +Resulting SP written in the end is to be the sum of all changes from executed push/pop instructions in the queue |