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Diffstat (limited to 'cpu/cpu-context.h')
| -rw-r--r-- | cpu/cpu-context.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/cpu/cpu-context.h b/cpu/cpu-context.h new file mode 100644 index 0000000..1957df9 --- /dev/null +++ b/cpu/cpu-context.h @@ -0,0 +1,120 @@ +/*************************************************************** + __CPU_CONTEXT.H + + This file contains CPU CONTEXT operation functions & data + declarations. + + PART OF : CPU - library . + USAGE : Internal only . + NOTE : Include "libcpu.h" before this FILE . + + Copyright (C) 2026 by Andrew V.Kosteltsev. + All Rights Reserved. + ***************************************************************/ +#ifndef __CPU_CONTEXT_H +#define __CPU_CONTEXT_H +#ifdef __cplusplus +extern "C" { +#endif + +#define CPU_GUEST_FD_MAX 256 + +typedef struct __cpu_fd_entry +{ + int host_fd; + unsigned int owned; + unsigned int flags; +} __cpu_fd_entry; + +typedef struct __cpu_context cpu_context; +struct __cpu_context +{ + __mpu_uint64_t _pc; + __mpu_uint64_t _sp; + __mpu_uint64_t _fp; + __mpu_uint32_t _psw; + cpu_stop_reason _stop_reason; + __mpu_int32_t _exit_status; + + __mpu_UNIT_t *_program; + __mpu_uint64_t _program_size; + __mpu_uint64_t _program_capacity; + __mpu_UNIT_t *_data; + __mpu_uint64_t _data_size; + __mpu_uint64_t _data_capacity; + __mpu_UNIT_t *_stack; + __mpu_uint64_t _stack_size; + __mpu_uint64_t _stack_capacity; + __mpu_UNIT_t *_control; + __mpu_uint64_t _control_size; + __mpu_uint64_t _control_capacity; + __mpu_UNIT_t *_input; + __mpu_uint64_t _input_size; + __mpu_uint64_t _input_capacity; + __mpu_UNIT_t *_output; + __mpu_uint64_t _output_size; + __mpu_uint64_t _output_capacity; + __mpu_UNIT_t *_trace; + __mpu_uint64_t _trace_size; + __mpu_uint64_t _trace_capacity; + __mpu_UNIT_t *_heap; + __mpu_uint64_t _heap_brk; + __mpu_uint64_t _heap_size; + __mpu_uint64_t _heap_capacity; + __mpu_uint64_t _heap_limit; + + int _fd_initialized; + __cpu_fd_entry _fd[CPU_GUEST_FD_MAX]; + + int _cwd_initialized; + int _cwd_fd; + + __mpu_UNIT_t _regs[CPU_REGISTERS_MEM_SIZE_IN_UNITS]; +}; + +extern __thread struct __cpu_context *pcctx; + +#define __PC (pcctx->_pc) +#define __SP (pcctx->_sp) +#define __FP (pcctx->_fp) +#define __REGS ((__mpu_UNIT_t *)&pcctx->_regs[0]) +#define __PROGRAM (pcctx->_program) +#define __PSIZE (pcctx->_program_size) +#define __PCAP (pcctx->_program_capacity) +#define __DATA (pcctx->_data) +#define __DSIZE (pcctx->_data_size) +#define __DCAP (pcctx->_data_capacity) +#define __STACK (pcctx->_stack) +#define __SSIZE (pcctx->_stack_size) +#define __SCAP (pcctx->_stack_capacity) +#define __CONTROL (pcctx->_control) +#define __CSIZE (pcctx->_control_size) +#define __CCAP (pcctx->_control_capacity) +#define __INPUT (pcctx->_input) +#define __ISIZE (pcctx->_input_size) +#define __ICAP (pcctx->_input_capacity) +#define __OUTPUT (pcctx->_output) +#define __OSIZE (pcctx->_output_size) +#define __OCAP (pcctx->_output_capacity) +#define __TRACE (pcctx->_trace) +#define __TSIZE (pcctx->_trace_size) +#define __TCAP (pcctx->_trace_capacity) +#define __HEAP (pcctx->_heap) +#define __HBRK (pcctx->_heap_brk) +#define __HSIZE (pcctx->_heap_size) +#define __HCAP (pcctx->_heap_capacity) +#define __HLIMIT (pcctx->_heap_limit) +#define __STOP_REASON (pcctx->_stop_reason) +#define __EXIT_STATUS (pcctx->_exit_status) +#define __CPU_PSW (pcctx->_psw) +#define __SET_CFLAG(mask) (pcctx->_psw |= (mask)) +#define __CLEAR_CFLAG(mask) (pcctx->_psw &= ~(mask)) +#define __INVERT_CFLAG(mask) (pcctx->_psw ^= (mask)) +#define __CFLAG(mask,shift) ((pcctx->_psw & (mask)) >> (shift)) + +extern __mpu_uint64_t __cpu_heap_brk( __mpu_uint64_t new_brk ); + +#ifdef __cplusplus +} +#endif +#endif |