mirror of
https://github.com/ringtailsoftware/uvm32.git
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103 lines
2.3 KiB
C
103 lines
2.3 KiB
C
#ifndef UVM32_H
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#define UVM32_H 1
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#ifndef CUSTOM_STDLIB_H
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#include <stdint.h>
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#include <stdbool.h>
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#else
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#include CUSTOM_STDLIB_H
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#endif
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#include "uvm32_sys.h"
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#define LIST_OF_UVM32_ERRS \
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X(UVM32_ERR_NONE) \
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X(UVM32_ERR_NOTREADY) \
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X(UVM32_ERR_MEM_RD) \
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X(UVM32_ERR_MEM_WR) \
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X(UVM32_ERR_BAD_SYSCALL) \
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X(UVM32_ERR_HUNG) \
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X(UVM32_ERR_INTERNAL_CORE) \
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X(UVM32_ERR_INTERNAL_STATE) \
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X(UVM32_ERR_ARGS) \
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#define X(name) name,
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typedef enum {
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LIST_OF_UVM32_ERRS
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} uvm32_err_t;
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#undef X
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typedef enum {
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UVM32_EVT_ERR,
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UVM32_EVT_SYSCALL,
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UVM32_EVT_END,
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} uvm32_evt_typ_t;
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typedef struct {
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uvm32_err_t errcode;
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const char *errstr;
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} uvm32_evt_err_t;
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typedef struct {
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uint32_t code; // syscall number
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uint32_t *ret;
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uint32_t *params[2];
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} uvm32_evt_syscall_t;
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typedef struct {
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uvm32_evt_typ_t typ;
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union {
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uvm32_evt_syscall_t syscall;
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uvm32_evt_err_t err;
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} data;
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} uvm32_evt_t;
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#define MINIRV32_DECORATE static
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#define MINI_RV32_RAM_SIZE UVM32_MEMORY_SIZE
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#define MINIRV32_POSTEXEC(pc, ir, retval) {if (retval > 0) return retval;}
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#ifndef MINIRV32_IMPLEMENTATION
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#define MINIRV32_STEPPROTO
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#endif
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#include "mini-rv32ima.h"
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typedef enum {
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UVM32_STATUS_PAUSED,
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UVM32_STATUS_RUNNING,
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UVM32_STATUS_ERROR,
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UVM32_STATUS_ENDED,
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} uvm32_status_t;
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typedef struct {
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uvm32_status_t status;
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uvm32_err_t err;
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struct MiniRV32IMAState core;
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uint8_t memory[UVM32_MEMORY_SIZE];
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uvm32_evt_t ioevt; // for building up in callbacks
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uint8_t *stack_canary;
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} uvm32_state_t;
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void uvm32_init(uvm32_state_t *vmst);
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bool uvm32_load(uvm32_state_t *vmst, const uint8_t *rom, int len);
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bool uvm32_hasEnded(const uvm32_state_t *vmst);
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uint32_t uvm32_run(uvm32_state_t *vmst, uvm32_evt_t *evt, uint32_t instr_meter);
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// convenience for getptr
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typedef struct {
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uint8_t *ptr;
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uint32_t len;
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} uvm32_evt_syscall_buf_t;
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typedef enum {
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ARG0,
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ARG1,
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RET
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} uvm32_arg_t;
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uint32_t uvm32_getval(uvm32_state_t *vmst, uvm32_evt_t *evt, uvm32_arg_t);
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const char *uvm32_getcstr(uvm32_state_t *vmst, uvm32_evt_t *evt, uvm32_arg_t);
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void uvm32_setval(uvm32_state_t *vmst, uvm32_evt_t *evt, uvm32_arg_t, uint32_t val);
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uvm32_evt_syscall_buf_t uvm32_getbuf(uvm32_state_t *vmst, uvm32_evt_t *evt, uvm32_arg_t argPtr, uvm32_arg_t argLen);
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void uvm32_clearError(uvm32_state_t *vmst);
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#endif
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