diff options
| author | Ian Moffett <ian@osmora.org> | 2025-07-22 14:43:37 -0400 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2025-07-22 14:43:37 -0400 |
| commit | ff5a77f6f2ee9e7086b0f2c16cf0752a2d105d33 (patch) | |
| tree | c3e9529b4a4741106b074b53bfc0f2c5a26e9b6b /usr.bin/oemu/include | |
| parent | cf3b1238d3ebdf6184a9977ee6e0d3057313444c (diff) | |
oemu: cpu: Add link registers and SR_STATE
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'usr.bin/oemu/include')
| -rw-r--r-- | usr.bin/oemu/include/oemu/cpu.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/usr.bin/oemu/include/oemu/cpu.h b/usr.bin/oemu/include/oemu/cpu.h index 78b92da..882fe93 100644 --- a/usr.bin/oemu/include/oemu/cpu.h +++ b/usr.bin/oemu/include/oemu/cpu.h @@ -31,6 +31,7 @@ #define _OEMU_CPU_H_ #include <sys/types.h> +#include <sys/param.h> #include <stdint.h> #include <stddef.h> #include <oemu/types.h> @@ -38,6 +39,12 @@ #define MEMORY_SIZE 512 /* + * Processor state register + */ +#define CPU_SRS_SV BIT(1) /* Supervisor flag */ +#define CPU_SRS_CARRY BIT(2) /* Carry flag */ + +/* * System memory * * @mem: Data @@ -53,10 +60,16 @@ struct sysmem { * * @xreg: X<n> * @ip: Instruction pointer + * @sr_state: Processor state register + * @blr: Branch link register + * @ilr: Interrupt link register */ struct cpu_regs { reg_t xreg[16]; reg_t ip; + reg_t sr_state; + reg_t blr; + reg_t ilr; }; struct oemu_cpu { |